Index for Galaxy Zoo Talk (links and images )
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by
Budgieye
moderator
This page
1.1 List of Index categories and what has been indexed pages 1-8
1.2 Galaxies overview
1.3 Galaxy Classification and formation and evolution
1.4 Elliptical
1.5 Lenticular
1.6 Spiral
1.7 Barred Spiral
1.8 Spiral arms
1.9 Irregular galaxies and clumpy galaxies, low surface brightness LSB
1.10 Dust, red spirals, blue ellipticals, quenchingTHIS PAGE The Index to the index, and classification of galaxies
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb
1.1 List of Index categories and what has been indexed.
1.2 Galaxies overview
1.3 Galaxy Classification and formation and evolution
1.4 Elliptical
1.5 Lenticular
1.6 Spiral
1.7 Barred Spiral
1.8 Spiral arms
1.9 Irregular galaxies and clumpy galaxies, low surface brightness LSB
1.10 Dust, red spirals, blue ellipticals, quenching
Page 2 Features of Galaxies, overlaps, collisions
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.1 Edge-on, dust lanes https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.2 Nucleus, nuclear bulge, and bulgeless, X-shaped bulges , nuclear rings https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.3 Overlapping galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.4 Ring galaxy (empty in the middle) collisional ring galaxy - created by collision that removed the inside of the galaxy) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.5 ringed galaxy (ring around a galaxy) and pseudo-ringed galaxy, created by resonance created by bars , nuclear rings https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.6 Polar rings https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.7 gas outfall / infall M82 look alikes https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.8 Galaxy Mergers and Flybys and Merger Zoo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.9 Galaxy collisions and shell galaxies created by high speed collisions https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.10 Double nuclei and shell galaxies created by two revolving nuclei https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Page 3 Active Galaxies, Black Holes, Gravitational Lenses
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.1 AGN (Active Galaxy Nucleus) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.2 Quasars and Blazars https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.3 AGN-illuminated clouds, Voorwerpje https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.4 Green Bean Galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.5 Hanny's Voorwerp https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.6 Relativistic jets https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.7 Black holes and SMBH (Super Massive Black Holes) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3&comment_id=53d8b91b0d43f77bb6000f96
3.8 Green peas, compact starburst, Blue compact starburst , OIII objects https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3&comment_id=53d8b93a0d43f77bb6000f98
3.9 Gravitational lenses https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.10 Dark Matter Galaxy clusters CMB (Cosmic Microwave Background) Big Bang, Cosmology
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
Page 4 our Milky Way Galaxy and its stars
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.1 Supernova in Talk, Forum, SDSS The Legacy Survey: Stripe 82, and Galaxy Zoo: The Hunt for Supernova. BBC Stargazing Live Snapshot Supernova
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=44.2 Milky Way Galaxy and Andromeda Galaxy and nearby https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4&comment_id=53d8b9890d43f776b0001093
4.3 Stars in our galaxy https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.4 nebula, supernova remnants, starbirth nebulae https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.5 white dwarf stars, neutron stars https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.6 blue, yellow and white (green) stars https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.7 red stars, carbon, red and brown dwarf https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.8 spectroscopic binary stars https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.9 variable stars , unusual stars https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.10 exoplanets https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
Page 5 The citizen science websites
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.1 Galaxy Zoo and Citizen Science https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.2 Galaxy Zoo 1 chirality (clockwise etc) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.3 Galaxy Zoo 2 morphology https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.4 Galaxy Zoo 3 Hubble images https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.5 Galaxy Zoo 4,5, etc Infrared images and BBC Stargazing Live https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.6 Other related Galaxy Zoo projects Filter, SpaceWarps, Radio Zoo, Bar Lengths, Disk detectives, Planet Hunters, Milky Way https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.7 Twitter and Facebook https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.8 Talk, Blog and the old Forum https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.9 Upcoming Galaxy Zoo type projects LSST https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.10 Zooniverse https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
Page 6 Other data sources
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.1 SDSS data (Sloane Digital Sky Survey) dr7 dr10 https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.2 SDSS stripe 82, 84, 86 https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.3 HST (Hubble Space Telescope) data https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.4 AEGIS, Groth strip https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.5 Infrared data CFHT (Canada France Hawaii Telecope) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.6 radio and Radio Galaxy Zoo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.7 DECaLS PanSTARRS GAMA/KiDS https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.8 UV and X-ray telescope https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.9 other telescope images https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
6.10 Google Sky https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
Page 7 Using Data
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
7.1 Spectral Charts, MaNGA
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.2 Redshift z and photometric Z (PhotoZ)
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.3 Measure distance
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.4 Using NED (NASA Extra-galactic Database)
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.5 Using SIMBAD
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.6 Catalogs of Galaxies
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.7 data analysis and FITS images
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.8 computer recognition of galaxies
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.9 Education and Outreach , Magazines
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=77.10 She's an astronomer
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
Page 8 Artifacts, our Solar System, Fun Things
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
8.1 Artifacts, cosmic rays
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.2 airplanes. satellites and meteors
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.3 asteroids, ice worlds, Planet Nine
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.4 comets
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.5 Sun Moon planets
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.6 Just Chat, birthdays, greetings,
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.7 jokes, limericks
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.8 our astrophotography
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.9 Artistic images of galaxies
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=88.10 Fun images of galaxies
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
PAGE 9 Detailed images of galaxies
9.3 Image Gallery of Large Galaxies several hundred labelled galaxies of IC, NGC and UGC in the Blanco-4m legacy survey
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=9
Index for Galaxy Zoo Talk https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb
10 pages of useful links for more info about galaxies, pictures throughout 😃Where to find posted galaxy information in Talk, the old Forum, Scientist's Blogs, Zooniverse citizen science websites...
I am starting this because I can't find things, even things that I have posted myself!
THIS INDEX WILL BE UNDER CONSTRUCTION FOR SEVERAL MONTHS
estimated percentage done: 20% November -30% May2015 half done.
The link at the top of each topic is the link back to itself - so you can copy the link more easily.
If you want to open the links below in new tab (so you don't lose your original page) press CTRL as you left-click the blue link (for Windows)
To open a link in a new window, press shift and left click. (for Windows)
When I post an image, I place the image above the corresponding hot link.
WHICH WEBSITES ARE COVERED IN THIS INDEX
Zooniverse website: Zooniverse published papers https://www.zooniverse.org/publications Galaxy Zoo category
Zooniverse website: selection of papers as well as Galaxy Zoo category https://www.zooniverse.org/publications and Zooniverse letters https://letters.zooniverse.org/
classification websites: information on Zooniverse, Galaxy Zoo, SpaceWarps, Radio Zoo
Blogs from Zooniverse about galaxies: https://blog.galaxyzoo.org/ ( December 2007 to Oct 2014)
Galaxy Zoo Forum - Object of the Day (OOTD) up to page 4 done., 45 to go. Forum OOTD finished p5, https://www.galaxyzooforum.org/index.php?board=5.150
Galaxy Zoo Forum - selections of major threads - some done. starting on Weird and Wonderful Feb 2015
Galaxy Zoo Talk- continuing.
Galaxy Zoo Talk - Collection of collections https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0000vv1
Posted
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by
Budgieye
moderator
1.2 Galaxies overview https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b722db90c76710000f7a
Hashtag:
wow #wow for an amazing galaxy
zgotw #zgotw (Zooniverse Galaxy of the Week) If you want to suggest a galaxy as Galaxy Of The Week
Public Collection: Galaxy of the Week CGZL00003t - moderated by klmasters MODERATOR, SCIENTIST collects all galaxies tagged as #zgotw https://talk.galaxyzoo.org/#AMAZING GALAXY OF THE WEEK/collections/CGZL00003t
Daily Zooniverse: Amazing Galaxy of the Week
https://daily.zooniverse.org/tag/amazing-galaxy-of-the-week/Daily Zooniverse : has news from all the projects in Zooniverse, use #dailyzoo to suggest a feature, #zgotw to suggest a galaxy. https://daily.zooniverse.org/
Talk: Galaxy Redshift Chart [colours of galaxies from close by to far, far away] https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000ulp?page=2
SDSS website: Redshift Gallery: Galaxies https://classic.sdss.org/gallery/gal_zgalaxy.html how galaxies at different redshifts appear to us.
Blog: Pretty galaxies on the BBC Big Screens March 14, 2011 by karenlmasters https://blog.galaxyzoo.org/2011/03/14/pretty-galaxies-on-the-bbc-big-screens/ "As part of National Science and Engineering Week, 11-20th March 2011 in the UK I was involved in the production of a series of 5 short videos called “From the Earth to the Edge of the Universe” which were made as a collaboration between Creative Technologies and the Institute of Cosmology and Gravitation at the University of Portsmouth. They are going on the BBC Big Screens, apparently right across the UK and continuing up until the 2012 Olympics."
Blog: What is a Galaxy? February 3, 2011 by karenlmasters https://blog.galaxyzoo.org/2011/02/03/what-is-a-galaxy/ "There has been a debate raging in the scientific literature over whether or not they differ from star clusters, and where the line between large star clusters and small galaxies should be drawn. It used to be there was quite a separation between the properties of globular clusters (which are spherical collections of stars found orbiting galaxies – the Milky Way has a collection of about 150-160 of them) and the smallest known galaxies."
"!Blog: Galaxies 101: The Great Debate April 28, 2010 by Robert https://blog.galaxyzoo.org/2010/04/28/101-the-great-debate/
"in Galaxies 101 these posts are beginning in the week of the 90th anniversary of The Great Debate which occurred on April 26th, 1920. The Great Debate – or the Shapely-Curtis Debate – took place at the Smithsonian Museum of Natural History between two eminent astronomers, Harlow Shapley and Heber Curtis. Shapely was arguing that the ‘spiral nebulae’, that were observed at the time, were within our own Galaxy – and that our Galaxy was the Universe. He also argued that the Sun was not at its centre. Conversely, Curtis argued that the Sun was at the centre of our Galaxy but that the ‘spiral nebulae’ were not inside our Galaxy at all. He suggested instead that the Universe was much larger than our Galaxy and that these nebulae were in fact other, ‘island’ universes.Blog: And the winner is….. Arp 142 (The Penguin Galaxy) August 8, 2013 https://blog.galaxyzoo.org/2013/08/08/and-the-winner-is-arp-142-the-penguin-galaxy/ by karenlmasters
Blog: Top Ten Galaxies https://blog.galaxyzoo.org/2009/03/03/top-ten-galaxies/ still the elliptical at no.1?
Blog: Your top ten galaxies… February 2009 https://blog.galaxyzoo.org/2009/02/24/your-top-ten-galaxies/ The ‘Favourites’ feature in the new Galaxy Zoo; seems to have been rather popular in the site’s first week of existence.
SDSS video: Charting the Heavens https://www.sdss.org/education/ A 4 minute tour of the universe
Forum: The "Take My Breath Away" Galaxies- for only the most beautiful thread https://www.galaxyzooforum.org/index.php?topic=1459.0
Forum thread: Nearby galaxies z less than 0.004 https://www.galaxyzooforum.org/index.php?topic=7811.0
Forum thread: Ours and they are ...WOW" Mukund Vedapudi https://www.galaxyzooforum.org/index.php?topic=275042.0 Compare SDSS and Hubble images
Forum thread: Even closer? z less than 0.000 The blueshift galaxy thread https://www.galaxyzooforum.org/index.php?topic=279890.0
Forum thread: VERY nearby galaxies: z less than 0.001 https://www.galaxyzooforum.org/index.php?topic=278513.0
Forum thread: Two identical twins ! https://www.galaxyzooforum.org/index.php?topic=273377.0 two similar galaxies close together
Forum thread; Non-Identical Twins! Post your pix with two different galaxies in them here https://www.galaxyzooforum.org/index.php?topic=7925.0
Forum: Wednesday, 3rd July, 2013: What Are Galaxies? by JeanTate https://www.galaxyzooforum.org/index.php?topic=280983.0
Forum: Wednesday, 30th January, 2013: More WaWs (Weird and Wonderfuls!) by JeanTate https://www.galaxyzooforum.org/index.php?topic=280612.0
Forum: Wednesday, 26th December, 2012: Eye Candy from Galaxy Zoo Mark IV by JeanTate https://www.galaxyzooforum.org/index.php?topic=280569.0
Forum: Sunday 24th June 2012: galaxies with sharp corners? by Alice https://www.galaxyzooforum.org/index.php?topic=280221.0 Square galaxies https://www.galaxyzooforum.org/index.php?topic=280005.0
website: Galaxy size comparison chart https://www.rhysy.net/galaxy-sizes.html
Hubble Space Telescope website: 2 trillion galaxies in the Universe
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ000278h?page=1&comment_id=5848928caeb4420078000778Posted
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by
Budgieye
moderator
1.3 Galaxy Classification and formation and evolution https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b71c0d43f776b0001074
Collection: #NGC NGC objects https://talk.galaxyzoo.org/#/collections/CGZL00003q by vrooje ADMIN, SCIENTIST brighter galaxies
Collection: #UGC UGC Catalogue https://talk.galaxyzoo.org/#/collections/CGZL00003w by Capella05 MODERATOR brighter galaxies
https://upload.wikimedia.org/wikipedia/commons/8/8a/Hubble_sequence_photo.png
https://upload.wikimedia.org/wikipedia/commons/8/8a/Hubble_sequence_photo.png
"Hubble tuning fork"
How did other people classify a galaxy?Talk: Node Tree Galaxy Zoo
Blog: Explore Galaxy Zoo Classifications April 27, 2015 by karenlmasters (Coleman Krawczyk) "For a guided tour of this tool click the “Take a tour” button, and for a full list of features click the “Help” button."
Blog: Visualizing the decision trees for Galaxy Zoo by April 6, 2015 by Kyle Willett (Coleman Krawczyk) https://blog.galaxyzoo.org/2015/04/06/visualizing-the-decision-trees-for-galaxy-zoo/
Website: Bill Keel's Galaxy Classification https://www.astr.ua.edu/keel/galaxies/classify.html
Webs
ite: Citizen Scientists Probe Early Galaxies By: Shannon Hall | September 29, 2014 Sky and Telescope https://www.skyandtelescope.com/astronomy-news/citizen-scientists-probe-early-galaxies-09292014/ "New data collected by Galaxy Zoo show early galaxies with central bars, providing implications about how galaxies grow.================================================
Galaxy Zoo 2 website: Practice classifying galaxies https://zoo2.galaxyzoo.org/how_to_take_part
Blog: **Meeting the Astronomy World [AAS Austin, Texas] ** January 31, 2012 by Anna Han https://blog.galaxyzoo.org/2012/01/31/meeting-the-astronomy-world/ "I plan to continue searching for multiple AGN signatures in grism spectra of clumpy galaxies."
The SPMs are part of a sample classified by Galaxy Zoo as post-mergers. We looked at this sample again and we picked the ones which look mostly bulge dominated, a key feature of galaxies that are likely to be precursors of elliptical galaxies.Blog: Galaxy Crash Debris: Post-merger Spherodials paper now out! November 29, 2011 by Alfredo Carpineti https://blog.galaxyzoo.org/2011/11/29/galaxy-crash-debris-post-merger-spherodials-paper-now-out/ "We are interested in post-mergers because we want to study in the hierarchical model of galaxy evolution and understanding the evolution of galaxies along a merger sequence is necessary to achieve this. We define post-mergers as single-core galaxies with tidal feature or disruption that can only be explained as merger related...55% of the SPMs are products of major mergers in which at least one of the progenitors is a late-type galaxy."
Blog: Star formation rate vs. color in galaxy groups August 2, 2011 by Andrew Wetzel [guest blog], https://blog.galaxyzoo.org/2011/08/02/star-formation-rate-vs-color-in-galaxy-groups/ "Galaxy Zoo helped to confirm our suspicion that many spiral galaxies that appear red are in fact actively forming stars, but their colors are reddened via dust "
Blog: Our Galaxy Zoo Session at the Boston AAS June 3, 2011 by karenlmasters https://blog.galaxyzoo.org/2011/06/03/our-galaxy-zoo-session-at-the-boston-aas/ Alice, forum moderator, was there too.
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Cosmic Evolution from Galaxy Zoo
Barred Spirals on the Red Sequence – an important evolutionary
stepping stone? – KLM (that’s me of course; ADS abstract)Bar Lengths in Nearby Disk Galaxies. – Ben Hoyle
The Connection between AGN Activity and Bars in Late Type Galaxies –
Carie Cardamone (ADS abstract)Black Hole Growth and Host Galaxy Morphology: Two Different
Evolutionary Pathways – Kevin Schawinski (ADS abstract)Building the low-mass end of the red sequence with local
post-starburst galaxies- Ivy Wong (ADS abstract)Properties of spheroidal post-mergers in the local Universe – Alfredo
Carpineti (ADS abstract)
Blog: Insane Happiness in Massachusetts July 13, 2011 by Alice https://blog.galaxyzoo.org/2011/07/13/insane-happiness-in-massachusetts/ A Galaxy Zoo moderators trip to the AAS conference.
Blog: Spheroidal Post Merger Systems at the AAS June 6, 2011 https://blog.galaxyzoo.org/2011/06/06/spheroidal-post-mergers-aas/ "Alfredo Carpineti from UCL, who talked about his work on the properties of spheroidal post-merger systems selected with the help of the Galaxy Zoo merger classifications,...a single remnant is in the final stages of relaxation after the collision and shows evidence for a dominant bulge, making them plausible progenitors of early-type galaxies."
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Blog: Galaxies 101:The Anatomy of Galaxies June 9, 2010 by Robert https://blog.galaxyzoo.org/2010/06/09/the-anatomy-of-galaxies/ Description of the types of galaxies.
clumpy galaxiesBlog: A brief history of clumpy galaxies May 25, 2010 by Steven https://blog.galaxyzoo.org/2010/05/25/a-brief-history-of-clumpy-galaxies/ "the galaxy types seen nearby were still present, but generally become “messier” the further back in time one looks. Furthermore, there appeared to be types of distant galaxies that we do not see today. Many of these galaxies comprise knots or clumps. In particular, many galaxies were found with an appearance of several clumps arranged in a line, and were named “chain galaxies”. Galaxies with two clumps were simply named “doubles”. There were also galaxies with the appearance of one clump with a tail, appropriately named “tadpole galaxies...
"the field of distant galaxy morphology had a further renaissance with the replacement of the WFPC2 camera with the Advanced Camera for Surveys (ACS). This enabled even deeper, clearer images to be obtained more quickly. Studies of these images (e.g., particularly by the Elmegreens and collaborators) find that clumpy galaxies become extremely common in the early universe.Blog: Galaxies 101: Types of Galaxies May 12, 2010 by Robert? https://blog.galaxyzoo.org/2010/05/12/types-of-galaxies/ examples of spirals, barred spirals ellipticals "Hubble called the elliptical galaxies ‘early’ galaxies and the spirals ‘late’ galaxies."
Blog: Explaining clustering statistics we use to study the distribution of Galaxy Zoo galaxies by raminskibba June 2014 https://blog.galaxyzoo.org/2014/06/27/explaining-clustering-statistics-we-use-to-study-the-distribution-of-galaxy-zoo-galaxies/ "elliptical galaxies tend to be found in dense environments[,..]barred disc galaxies tend to be found in denser environments than average disc galaxies[...]next priority with Galaxy Zoo is to develop dark matter halo models of the environmental dependence of galaxy morphology."
Blog: What is a Galaxy? …the return by Brooke Simmons https://blog.galaxyzoo.org/2013/09/04/what-is-a-galaxy-the-return/
Blog : Galaxy Zoo data in SDSS by Kyle Willett July 2013 https://blog.galaxyzoo.org/2013/07/31/sdss-data-release-10-and-galaxy-zoo-2/ Scientists around the world can access the results of your clicks on smooth, bars, number of arms, rings, etc.
Blog: Evolutionary Paths In Galaxy Morphology: A Galaxy Zoo Conference by Brooke Simmons Sept 27, 2013 https://blog.galaxyzoo.org/2013/09/27/evolutionary-paths-galaxy-morphology-gz-conference/ "much of the team has been in Sydney, Australia, for the Evolutionary Paths In Galaxy Morphology conference. It’s a meeting centered largely around Galaxy Zoo, but it’s more generally about galaxy evolution, and how Galaxy Zoo fits into our overall (ever unfolding) picture of galaxy evolution."
Blog: Wish You Were All Here… by Ivy Wong October 2013 https://blog.galaxyzoo.org/2013/10/16/wish-you-were-all-here/ "“Evolutionary Paths in Galaxy Morphology” meeting in Sydney...
Blog: Galaxy Zoo at the Durham Galaxy Evolution Conference by Brook Simmons https://blog.galaxyzoo.org/2011/08/04/galaxy-zoo-at-the-durham-galaxy-evolution-conference/
Blog: Using Galaxy Zoo Classifications – a Casjobs Example August 1, 2013 by karenlmasters https://blog.galaxyzoo.org/2013/08/01/using-galaxy-zoo-classification-a-casjobs-example/ " you need to go to CasJobs (make sure it’s the SDSS-III CasJobs and not the one for SDSS-I and SDSS-II which is a separate page and only includes SDSS data up to Data Release 7), sign up for a (free) account, and paste these code bits into the “Query” tab."
Blog: A Galaxy Zoo science team dinner June 7, 2013 by karenlmasters https://blog.galaxyzoo.org/2013/06/07/a-galaxy-zoo-science-team-dinner/ Galaxy Zoo hosted a Specialist Discussion at the Royal Astronomical Society in London, on the topic of Morphology in the Era of Large Surveys... "
Blog: Galaxy Zoo Multi Mergers Dec 2010 https://blog.galaxyzoo.org/2010/12/22/galaxy-zoo-multi-mergers/ when 3 galaxies collide: a list for publication with 39 examples "We therefore compared these merger fractions and galaxy properties to a large and well-known simulation called the Millennium Run. This is a cosmic scale simulation of Dark Matter" "Simulation did rather well – it predicted the relative abundance of multi-mergers to within a few percent and it predicted that galaxies in these systems should have properties more like a typical elliptical rather than a typical spiral. "
------------------------------------------------------------------------------------------------------------Blog; AAS 218: Black Hole Growth and Host Galaxy Morphology June 8, 2011 by Kevin https://blog.galaxyzoo.org/2011/06/08/aas-218-black-hole-growth-and-host-galaxy-morphology/ pdf and quicktime video
Blog; Pretty galaxies on the BBC Big ScreensMarch 14, 2011 by karenlmasters https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb I talk (briefly) about Galaxy Zoo and show the HST image of Hanny’s Voorwerp. I also describe some of the main morphological features of galaxies, and what I like about them
one clump?Blog: Classification tree tweaks May 21, 2010 https://blog.galaxyzoo.org/2010/05/21/classification-tree-tweaks/ "participants and how clearly different clumpy galaxies are from other types, even when there is only one clump. After having seen a few clumpy galaxies, it seems that many Zooites come to recognise that there are subtle features that set them apart from other types of galaxies. This suggests that single-clump galaxies really are a clearly different type of galaxy to the ellipticals and disks that are more common nearby."
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Blog: Unveiling the Mass of Galaxies with Vera Rubin June 15, 2009 by karenlmasters
https://blog.galaxyzoo.org/2009/06/15/unveiling-the-mass-of-galaxies-with-vera-rubin/ "...rotation curves of galaxies (observations that provided the first strong evidence for dark matter in galaxies). discovering a galaxy in which the stars rotated in two directions)
Blog: Greetings from Kuala Lumpur April 4, 2009 by The Zooniverse https://blog.galaxyzoo.org/2009/04/04/greetings-from-kuala-lumpur/ "A couple of members of the Galaxy Zoo team were in Malaysia over the last week at this conference, organised by the University of Nottingham...On Friday morning Steven and Ramin gave talks featuring our results on how galaxy morphology changes depending on the environment where a galaxy lives, how that affect varies with how massive a galaxy is, and comparing with what we see in terms of galaxy colours. "
Blog: The European Week of Astronomy and Space Science by Karen Masters April 2009 https://blog.galaxyzoo.org/2009/04/27/the-european-week-of-astronomy-and-space-science/ On Tuesday afternoon Daniel Thomas presented a talk entitled “Secular Evolution in Spiral Bulges”. ... but did find that both low mass ellipticals and spirals seem to have younger populations than higher mass ones. Daniel finished by talking about the prospects for Galaxy Zoo 2 to vastly increase the sample size (from 35 to a quarter of a million), so is obviously looking forward to having that data to hand to explore this issue further." "This reddening with inclination is expected if the disks of spirals have a significant amount of interstellar dust in them. It’s useful to know how much reddening there is so that we can reconstruct the real colours of the spiral galaxies (and find the true “red spirals”, not just those reddened by dust). "
Blog: Observing, Spanish style November 2008 https://blog.galaxyzoo.org/2008/11/12/observing-spanish-style/ "the giant 30m radio dish of the IRAM observatory above Granada for not one, but two Zoo projects mergers and black holes in ellipticals. looking for the signature of carbon monoxide (CO) in the galaxies. Once you know how much CO there is, there’s a well-established formula that gives you the star formation rate, something which we need to know if we’re going to understand how the galaxies are evolving."
Blog: Another Zoo paper submitted! November 2008 https://blog.galaxyzoo.org/2008/11/24/another-zoo-paper-submitted/ The first author is Ramin Skibba, a friend of the Galaxy Zoo team, who is an expert in a mysterious analysis tool called ‘mark correlation functions’. He’s calculated these using the Galaxy Zoo data and interpreted the results to help us understand how the morphology and colour of galaxies depend on their environment.
Blog: Science in Chicago by Steve Bamford August 2008 https://blog.galaxyzoo.org/2008/08/16/science-in-chicago/ “Galaxy Zoo: the independence of morphology and colour”.
Blog: A really hard question Aug 2008 https://blog.galaxyzoo.org/2008/08/17/a-really-hard-question/ we should classify according to shape (which we call morphology to confuse people) and then look at colour,?
Blog: Third Galaxy Zoo paper submitted May 2008 https://blog.galaxyzoo.org/2008/05/17/third-galaxy-zoo-paper-submitted/ with link to paper "Galaxy Zoo: the independence of morphology and colour"
Blog: Second paper now available online https://blog.galaxyzoo.org/2008/04/30/second-paper-now-available-online/
Blog: Do galaxies care where they live? Jan 2008 https://blog.galaxyzoo.org/2008/01/21/morphology_environment_1/organised spiral galaxies tend to live in areas of low density. Disorganised ellipticals are found where many galaxies cluster together,
Publication: Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey by Kyle W. Willett , Chris J. Lintott , Steven P. Bamford , Karen L. Masters , Brooke D. Simmons, Kevin R.V. Casteels , Edward M. Edmondson, Lucy F. Fortson, Sugata Kaviraj , William C. Keel , Thomas Melvin, Robert C. Nichol , M. Jordan Raddick , Kevin Schawinski , Robert J. Simpson , Ramin A. Skibba , Arfon M. Smith , Daniel Thomas Cosmology and Nongalactic Astrophysics https://arxiv.org/abs/1308.3496 "bars, bulges, and the shapes of edge-on disks, as well as quantifying the relative strengths of galactic bulges and spiral arms."
Publication: Galaxy Zoo: Observing Secular Evolution Through Bars by Edmond Cheung, E. Athanassoula, Karen L. Masters, Robert C. Nichol, A. Bosma, Eric F. Bell, S. M. Faber, David C. Koo, Chris Lintott, Thomas Melvin, Kevin Schawinski, Ramin A. Skibba, Kyle W. Willett ApJ https://arxiv.org/abs/1310.2941 13,295 disk galaxies, 23% with bars, bars probably quench star formation
Publication: Galaxy Zoo: building the low-mass end of the red sequence with local post-starburst galaxies by Wong, O. I.; Schawinski, K.; Kaviraj, S.; Masters, K. L.; Nichol, R. C.; Lintott, C.; Keel, W. C.; Darg, D.; Bamford, S. P.; Andreescu, D.; Murray, P.; Raddick, M. J.; Szalay, A.; Thomas, D.; Vandenberg, J. MNRAS https://adsabs.harvard.edu/abs/2012MNRAS.420.1684W When intense star formation stops, galaxy colour changes from blue to red.
Publication: Spheroidal post-mergers in the local Universe by Carpineti, Alfredo; Kaviraj, Sugata; Darg, Daniel; Lintott, Chris; Schawinski, Kevin; Shabala, Stanislav MNRAS https://adsabs.harvard.edu/abs/2012MNRAS.420.2139C , catalogue of 3373 merger AGN, final stage of merger has star formation and AGN activity, dominant bulge present in many nearly merged galaxies, spirals often involved.
Publication: The fraction of early-type galaxies in low-redshift groups and clusters of galaxies by Hoyle, Ben; Masters, Karen L.; Nichol, Robert C.; Jimenez, Raul; Bamford, Steven P.MNRAS https://adsabs.harvard.edu/abs/2012MNRAS.423.3478H bulge, halo, galaxies evolve, then they merge to form massive galaxies
Publication: Galaxy Zoo: the dependence of morphology and colour on environment by Bamford, Steven P.; Nichol, Robert C.; Baldry, Ivan K.; Land, Kate; Lintott, Chris J.; Schawinski, Kevin; Slosar, Anže; Szalay, Alexander S.; Thomas, Daniel; Torki, Mehri; Andreescu, Dan; Edmondson, Edward M.; Miller, Christopher J.; Murray, Phil; Raddick, M. Jordan; Vandenberg, Jan. Massive galaxies are mostly red. Smaller galaxies are mostly blue in low-density environments, and most red in high density environments.
Publication: Galaxy Zoo: disentangling the environmental dependence of morphology and colour by Skibba, Ramin A.; Bamford, Steven P.; Nichol, Robert C.; Lintott, Chris J.; Andreescu, Dan; Edmondson, Edward M.; Murray, Phil; Raddick, M. Jordan; Schawinski, Kevin; Slosar, Anže; Szalay, Alexander S.; Thomas, Daniel; Vandenberg, Jan https://adsabs.harvard.edu/abs/2009MNRAS.399..966S blue spirals can become red, red galaxies found in crowed neighbourhoods such as if they are satellite galaxies.
colour-stellar mass diagram, big and red galaxies on top, 'green valley' in the middle, and smaller blue galaxies below
from Lintott https://mnras.oxfordjournals.org/content/389/3/1179/F9.medium.gif
Publication: Galaxy Zoo: morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey by Lintott, Chris J.; Schawinski, Kevin; Slosar, Anže; Land, Kate; Bamford, Steven; Thomas, Daniel; Raddick, M. Jordan; Nichol, Robert C.; Szalay, Alex; Andreescu, Dan; Murray, Phil; Vandenberg, Jan https://adsabs.harvard.edu/abs/2008MNRAS.389.1179L classifications for nearly one million galaxies, volunteers do as well as professionals, mass vs colour chart (posted above), big red galaxies, smaller blue galaxies below, "green valley" in the middle.
SDSS Mapping Nearby Galaxies at APO (MaNGA) https://www.sdss.org/surveys/manga/ "Unlike previous SDSS surveys which measured spectra only at the centers of target galaxies, MaNGA bundles sets of optical fibers into tightly-packed arrays, enabling spectral measurements across the face of each of ~10,000 nearby galaxies. MaNGA’s goal is to understand the “life cycle” of present day galaxies from imprinted clues of their birth and assembly, through their ongoing growth via star formation and merging, to their death from quenching at late times."
Redshift / Blueshift can be detected in rotating galaxies, but it takes more sensitive equipment than this to do a good job.. See this post in the forum.
Talk: Mapping Movement inside nearby galaxies with MaNGA https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001ynm
https://www.galaxyzooforum.org/index.php?topic=277867.0 Saturday, 12 June 2010: Hydrogen on the radio by EigenState
Can the z's indicate galactic spin? by nerthus and NGC3314 https://www.galaxyzooforum.org/index.php?topic=9436.msg95553;topicseen#msg95553 a good try in SDSS, though the images are now removed.
Re: Wednesday, 12th October, 2011: Kinematically Confirmed Polar Ring Galaxies by Jean Tate https://www.galaxyzooforum.org/index.php?topic=279519.msg563848#msg563848
Forum:Friday 3rd July 2009 - Spiral Pairs by Geoff https://www.galaxyzooforum.org/index.php?topic=275616.0 "I’ve often wondered, when looking at pictures of pairs of spiral galaxies, whether the spin of a galaxy would affect nearby galaxies,"
Forum: Wednesday, 13th February, 2013: Your Clicks At Work (Yet Again) by Jean Tate https://www.galaxyzooforum.org/index.php?topic=280630.0 Abell 1691 They use our clicks to say what type of galaxy each of the 342 they identify as belonging to Abell 1691 is, as in "spiral", "elliptical", or "uncertain" (i.e. morphological class)."
Forum: Friday 14th (all right, Saturday 15th) January 2011: an experiment by Alice https://www.galaxyzooforum.org/index.php?topic=278785.0 How does the presence of an AGN affect classification of galaxies? fake AGN
Blog: More on our fake AGN by Chris Lintott Jan 2011 https://blog.galaxyzoo.org/2011/01/12/more-on-our-fake-agn/
Blog: Fake? AGN Galaxies! by Carie https://blog.galaxyzoo.org/2011/01/11/fake-agn-galaxies/
Forum: "Fake AGN" discussion here https//www.galaxyzooforum.org/index.php?topic=278768.0APOD website: Galaxy Evolution Tracking Animation gravity causes clumps of matter to form into galaxies which immediately begin falling toward each other https://apod.nasa.gov/apod/ap160530.html
Video Credit: Donna Cox (AVL NCSA/U. Illinois) et al., NASA's GSFC, AVL, NCSA
Explanation: How did the universe evolve from such a smooth beginning? To help understand, computational cosmologists and NASA produced the featured time-lapse animated video depicting a computer simulation of part of the universe. The 100-million light-year simulation starts about 20 million years after the Big Bang and runs until the present. After a smooth beginning, gravity causes clumps of matter to form into galaxies which immediately begin falling toward each other. Soon, many of them condense into long filaments while others violently merge into a huge and hot cluster of galaxies. Investigating of potential universe attributes in simulations like this have helped shape the engineering design the James Webb Space Telescope, currently scheduled for launch in late 2018.The Current Status of Galaxy Formation https://arxiv.org/pdf/1207.3080.pdf A summary of galaxy formation, not easy.
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Budgieye
moderator
1.4 Elliptical galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b74a0d43f77b9e000f70
Hashtag
E0 is completely round, E3 is slightly flattened, E7 is cigar-shaped
We use Galaxy Zoo classification to define three morphological classes of galaxies, namely early types (ellipticals), late-type (disc-dominated) face-on spirals and early-type (bulge-dominated) face-on spirals. (Melvin, 2013 )
Forum: Your most gorgeous ellipticals https://www.galaxyzooforum.org/index.php?topic=264.0
Talk: Radio Galaxy and SDSS https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00012ms?page=1&comment_id=5474ae0f27b5627ab1000067 Radio Galaxy reveals the relativisitic jets of an elliptical galaxy.
Talk: Alice and the Ellipticals, Galaxy Zoo to the Rescue! by Alice June 2013) by Alice https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00002kk "there is a rather simple pattern in their properties. From an analysis of the data in photometric images - such as those we zooites were served up to classify - two key properties are highly correlated, the size (as measured quantitatively by the effective radius) and the central brightness (as measured by the mean surface brightness within the effective radius)."
Blog: GZ1 used for the fractions of early-types in clusters November 9, 2011 by Ben Hoyle (on behalf of Karen Masters, Bob Nichol, Steven Bamford, and Raul Jimenez) https://blog.galaxyzoo.org/2011/11/09/gz1-used-for-the-fractions-of-early-types-in-clusters/ "we have once again used your (now public) GZ1 classifications to find an interesting result...This work suggests that galaxies change from spiral to early-type when individual galaxies join together to form small groups of galaxies,"
Blog: Galaxies 101: Types of Galaxies May 12, 2010 by Robert? https://blog.galaxyzoo.org/2010/05/12/types-of-galaxies/ examples of spirals, barred spirals ellipticals "Hubble called the elliptical galaxies ‘early’ galaxies and the spirals ‘late’ galaxies."
Blog: Back at IRAM 30m…August 27, 2009 https://blog.galaxyzoo.org/2009/08/27/back-at-iram-30m/ "to test whether or not AGN (Active Galactic Nuclei) are responsible for dispelling gas and thus putting an end to star formation. "
Blog: Observing, Spanish style November 2008 https://blog.galaxyzoo.org/2008/11/12/observing-spanish-style/ "the giant 30m radio dish of the IRAM observatory above Granada for not one, but two Zoo projects mergers and black holes in ellipticals. looking for the signature of carbon monoxide (CO) in the galaxies. Once you know how much CO there is, there’s a well-established formula that gives you the star formation rate, something which we need to know if we’re going to understand how the galaxies are evolving."
Forum: https://www.galaxyzooforum.org/index.php?topic=280313.msg611952#msg611952 by phase space[1] (with stars sorted on box orbits, tube orbits, X-orbits..)
Blog: Steven https://blog.galaxyzoo.org/2010/05/21/classification-tree-tweaks/ "It can be difficult to tell the difference between an edge-on disk and a cigar-shaped elliptical galaxy. The clearest clue is probably at the ends: disks will have fairly sharp ends whereas ellipticals are more rounded. If the galaxy is small though, it can be impossible to tell; just go with your best guess and move on to the next galaxy."
Forum: Alice and the Ellipticals, Galaxy Zoo to the Rescue! (Wed 26 Jun '13) by JeanTate https://www.galaxyzooforum.org/index.php?topic=280974.0 also in Talk https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00002kk Using ellipticals to estimate the Hubble constant and the size of the Universe, also compare a post in Forum and Talk
website: Galaxy Size Comparison site https://www.rhysy.net/galaxy-sizes.html This chart has all the same galaxies as the first, but with the addition of IC 1101 (the largest galaxy known)
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Budgieye
moderator
1.5 Lenticular galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7510d43f77bb6000f7b
Spindle galaxy NGC 5866
Hashtag lenticular #lenticular EO #E0
https://skyserver.sdss.org/dr7/en/tools/explore/obj.asp?id=588011219140739085
Forum: Tuesday, August 27th, 2013: Ellipticals: Can't they be beautiful too? https://www.galaxyzooforum.org/index.php?topic=281151.0 #NGC 3166 NGC3316 . Its full classification according to NED is SAB(rs)0/a;HII LINER.
Forum: Place your lenticular (S0) galaxies in this thread https://www.galaxyzooforum.org/index.php?topic=8369.0
Talk: First MaNGA image of a lenticular galaxy by Budgieye http://www.sdss.org/surveys/manga/ https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001ynm
https://blog.galaxyzoo.org/2010/12/31/a-spindle-in-the-dragon/
Blog; A Spindle in the Dragon https://blog.galaxyzoo.org/2010/12/31/a-spindle-in-the-dragon/ a lenticular galaxy with a dust lane
barred lenticular, not many aroundhttps://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=321.1203147142721&dec=-2.0094479045877733
Talk: Barred lenticular? Or something else? I don't see any spiral arms, and this looks like a strong example of a barred S0. There aren't many of these in GZ!
https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001kjo?page=1&comment_id=5605d880d847611988004760Forum; https://www.galaxyzooforum.org/index.php?topic=8369.msg84284#msg84284
Forum thread: Barred Lenticular https://www.galaxyzooforum.org/index.php?topic=273316.0
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Budgieye
moderator
1.6 Spiral galaxies http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7760d43f77bd6000ff2
Hashtag: #spiral spiral
Forum OOTD: Friday 3rd July 2009 - Spiral Pairs by Geoff http://www.galaxyzooforum.org/index.php?topic=275616.0 "when looking at pictures of pairs of spiral galaxies, whether the spin of a galaxy would affect nearby galaxies,"
In Galaxy Zoo classification, we define three morphological classes of galaxies, namely early types (ellipticals), late-type (disc-dominated) face-on spirals and early-type (bulge-dominated) face-on spirals. (Melvin, 2013)
For chirality, the clockwise and anticlockwise observations of spirals, see 5.2 , Galaxy Zoo 1 chirality (clockwise etc) http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5&comment_id=53d8ba1d0d43f77b9e000fa0
Forum thread: Most Distant Spirals http://www.galaxyzooforum.org/index.php?topic=277905.0 Hubble
Forum: Your best spirals http://www.galaxyzooforum.org/index.php?topic=99.0
Blog: Oh, Sweet Spiral Of Mine by Brooke Simmons 2013 http://blog.galaxyzoo.org/2013/04/26/oh-sweet-spiral-of-mine/ "what is the significance of the number of spiral arms? "
Blog: Galaxy Zoo and undergraduate research: spiral arms, colors, and brightnesses by Zach Pace Oct 2013 http://blog.galaxyzoo.org/2013/10/29/galaxy-zoo-and-undergraduate-research-spiral-arms-colors-and-brightnesses/ "spiral galaxies with more arms and spiral galaxies with tighter arm winding (which is to say, a shallower pitch angle) tend to be brighter and bluer... distribution of galaxies classified by users as bulgeless is starkly different from the distribution of obvious bulge and bulge-dominated galaxies. "
Blog: Galaxies 101: Types of Galaxies May 12, 2010 by Robert? http://blog.galaxyzoo.org/2010/05/12/types-of-galaxies/ examples of spirals, barred spirals ellipticals "Hubble called the elliptical galaxies ‘early’ galaxies and the spirals ‘late’ galaxies."
Blog: Your new favourite galaxy March 2009 http://blog.galaxyzoo.org/2009/03/25/the-new-top-ten-galaxies/ is a distant spiral?
Blog: Blue Sky and Red Spiralsby Karen Masters December 2008 http://blog.galaxyzoo.org/2008/12/18/blue-sky-and-red-spirals/ "spirals definitely get redder as they get more edge-on. So extinction due to dust is clearly important. Because Sloan measures the galaxies in 5 different wavelengths, we can make 4 Sloan colours (in Astronomy the colour is just the difference in the brightness in two different bands) and look at the relative amount of extinction with wavelength which provides information on the source of the scattering and absorption...elliptical galaxies do not suffer from this effect, so if you compare the mean properties of ellipticals and spirals your answer will be biased by the effect of dust."
Publication: Galaxy Zoo: dust in spiral galaxies by Masters, Karen L.; Nichol, Robert; Bamford, Steven; Mosleh, Moein; Lintott, Chris J.; Andreescu, Dan; Edmondson, Edward M.; Keel, William C.; Murray, Phil; Raddick, M. Jordan; Schawinski, Kevin; Slosar, Anže; Szalay, Alexander S.; Thomas, Daniel; Vandenberg, Jan http://adsabs.harvard.edu/abs/2010MNRAS.404..792M Galaxies become redder as they are viewed edge-on, more luminous galaxies have more red due to dust
Forum: Dec 22, 2013 Stunning spiral galaxy with broken arms by Budgieye http://www.galaxyzooforum.org/index.php?topic=281537.0
HUDS 50 humongous distant spirals (Huds) candidates
Zooniverse Letters http://letters.zooniverse.org/ In-house publication of science results
Four HUDS HUmongous Distant Spirals by Jean Tate "disks with effective radii greater than 18 kpc, which is more than three times that of the Milky Way. "
http://letters.zooniverse.org/letters/43-physical_properties_of_the_first_four_huds Physical Properties of the First Four HUDS by Jean Tate Discovery of four giant distant spirals by Jean TateForum:Wednesday, 13th March, 2013: Galaxy #21 by JeanTate http://www.galaxyzooforum.org/index.php?topic=280687.0 " GALFIT a method for working out whether a galaxy has a disk ...Half the light from Galaxy #21 seems to come from parts of the galaxy further than ~23 kpc from the nucleus. 😮 8) 😮 8) Yep, Galaxy #21 is big humongous.
Forum: Wednesday, 31st October, 2012: Reminds Me a Bit of [Hurricaine] Sandy by JeanTate http://www.galaxyzooforum.org/index.php?topic=280485.0 NGC4698 NGC 4698 AGZ0002bn1, "NGC 4698 is remarkable, not only for its visual beauty, but also because the disk and bulge have a very strange velocity structure; specifically, the axis of rotation of the bulge seems to be at right angles to that of the disk!"
Forum: Wednesday, 15th August, 2012: Spiral Celebration by JeanTate http://www.galaxyzooforum.org/index.php?topic=280338.0
NASA | Computer Model Shows a Disk Galaxy's Life History
This cosmological simulation follows the development of a single disk galaxy over about 13.5 billion years, from shortly after the Big Bang to the present time. Colors indicate old stars (red), young stars (white and bright blue) and the distribution of gas density (pale blue); the view is 300,000 light-years across. The simulation ran on the Pleiades supercomputer at NASA's Ames Research Center in Moffett Field, Calif., and required about 1 million CPU hours. It assumes a universe dominated by dark energy and dark matter. Credit: F. Governato and T. Quinn (Univ. of Washington), A. Brooks (Univ. of Wisconsin, Madison), and J. Wadsley (McMaster Univ.).Posted
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Budgieye
moderator
1.7 Barred Spiral galaxies http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7990d43f77b9e000f75
SEE ALSO ringed galaxies
Hashtag: #bar bar
Forum: Best Barred Spirals http://www.galaxyzooforum.org/index.php?topic=3515.0 3700 posts
Galaxy Zoo : Bar Lengths 2012? Nearby universe
Galaxy Zoo : Bar Lengths (2015) Distant universe https://www.zooniverse.org/projects/vrooje/galaxy-zoo-bar-lengths#/projects/vrooje/galaxy-zoo-bar-lengths
Blog: What’s all the fuss about bars in galaxies? March 20, 2015 by karenlmasters http://blog.galaxyzoo.org/2015/03/20/whats-all-the-fuss-about-bars-in-galaxies/ has an embedded link to simulation of bar formation in spiral galaxies.
Blog: Galaxy Zoo: Are Bars Responsible for the Feeding of Supermasssive Black Holes Beyond the Local Universe? October 6, 2014 by ec2250 Edmond Cheung? http://blog.galaxyzoo.org/2014/10/06/galaxy-zoo-are-bars-responsible-for-the-feeding-of-supermasssive-black-holes-beyond-the-local-universe/ "bars are not the primary fueling mechanism for supermassive black hole growth for the last 7 billion years."
Blog: We’re Observing at the Very Large Array! by karenlmasters December 2013 http://blog.galaxyzoo.org/2013/12/13/were-observing-at-the-very-large-array/ "some very interesting very gas rich and very strongly barred galaxies we identified in the Galaxy Zoo 2 sample (the bit which overlaps with the ALFALFA survey which measures total HI gas in each galaxy)....We’re trying to detect emission from atomic hydrogen in these galaxies which emits at 21cm."
Blog: Stellar Populations of Quiescent Barred Galaxies Paper Accepted! May 19, 2015 by ec2250 http://blog.galaxyzoo.org/2015/05/19/stellar-populations-of-quiescent-barred-galaxies-paper-accepted/ "In this study, we stack hundreds of quiescent, i.e., non-star-forming, barred and unbarred galaxies in bins of redshift and stellar mass to produce extremely high-quality spectra... we plot the stellar age, which gives us an idea of the average age of a galaxy’s stars, stellar metallicity ([Fe/H]), which gives us an idea of the relative amount of elements heavier than hydrogen in a galaxy, alpha-abundance ([Mg/Fe]), which gives us an idea of the timescale it took to form a galaxy’s stars, and nitrogen abundance ([N/Fe]), which also gives us an idea of the timescale it took to form a galaxy’s stars...Our results suggest that bars are not a strong influence on the chemical evolution of quiescent galaxies,"
Blog; Bars as Drivers of Galactic Evolution R Smethurst [Becky] November 2013 http://blog.galaxyzoo.org/2013/11/29/bars-as-drivers-of-galactic-evolution/ "Bars are a key factor in our understanding of galactic evolution as they are capable of redistributing the angular momentum of the baryons (visible matter: stars, gas, dust etc.) and dark matter in a galaxy. This redistribution allows bars to drive stars and gas into the central regions of galaxies (they act as a funnel, down which material flows to the centre) causing an increase in star formation. All of these processes are commonly known as secular evolution.he authors study the behaviour of bars in visually classified disc galaxies by looking at the specific star formation rate (SSFR; the star formation rate as a fraction of the total mass of the galaxy) and the properties of their inner structure."
The top row shows examples of galaxies with pbar=0 (ie. no-one could see a bar), then pbar=0.2; pbar=0.5 and pbar=1.0 (all of you saw a bar).Blog: New Bar Paper Submitted to MNRAS http://blog.galaxyzoo.org/2011/11/07/new-bar-paper-submitted-to-mnras/" barred disc galaxies are more strongly clustered than disc galaxies in general. "
Blog: Bars in Spain! November 9, 2011 by Ben http://blog.galaxyzoo.org/2011/11/09/bars-in-spain/ "Recently the Spanish media has described the Google funded GZ bar drawing project. The article, which can be seen here and was based on this MNRAS paper , was written by members of the Spanish Public Agency for the Dissemination of Scientific Knowledge, (see here), which is a leading news agency in Spain."
Blog: Bars Work Featured by The Leverhulme Trust August 26, 2011 by karenlmasters http://blog.galaxyzoo.org/2011/08/26/bars-work-featured-by-the-leverhulme-trust/ "I’m currently funded to work on research using Galaxy Zoo classifications through an Early Career Fellowship from The Leverhulme Trust. "
Blog: The Connection between AGN Activity and Bars in Late Type Galaxies AAS June 7, 2011
by The Zooniverse " it rules out one popular idea: bars are not a key source of inciting black hole growth in galaxies."Blog: Do Bars Kill Spiral Galaxies? by karenlmasters November 2010 http://blog.galaxyzoo.org/2010/11/09/do-bars-kill-spiral-galaxies/ "the bar might somehow be involved with the process which turns the disk galaxies red "
Blog: Studying the slow processes of galaxy evolution through bars by Edmond Cheung October 2013 http://blog.galaxyzoo.org/2013/10/17/studying-the-slow-processes-of-galaxy-evolution-through-bars/ "we took the first steps toward establishing that bars are important drivers of galaxy evolution. [...] According to the simulations, bars grow with time, becoming stronger (they exert more torque) and longer. During this growth, bars drive an increasing amount of material in towards the centers of galaxies, resulting in the creation and growth of dense central components, known as “disky pseudobulges”. "The central finding was a strong correlation between these bar properties and the masses of the stars in the innermost regions of these galaxies (see plot).
Blog: Conference on Bars in Granada, Spain June 27, 2013 by karenlmasters http://blog.galaxyzoo.org/2013/06/27/conference-on-bars-in-granada-spain/
Bar fraction as a function of galaxy colour. strong correlation between the bar fraction and the colour of the disk galaxy. Redder disk galaxies are much more likely to have bars
Top: bar fraction as a function of galaxy colour split into disk galaxies with large bulges (red) and small bulges (blue). The dashed line shows the overall bar fraction for each sub-sample. Bottom: histograms showing the colour distribution of the disk galaxies with large bulges (red) and small bulges (blue).Blog:First Results from Galaxy Zoo 2: Bars in Disk Galaxies February 9, 2010 by karenlmasters http://blog.galaxyzoo.org/2010/02/09/first-results-from-galaxy-zoo-2-bars-in-disk-galaxies/ "So what did we find? Well we observed a strong correlation between the bar fraction and the colour of the disk galaxy. Redder disk galaxies are much more likely to have bars identified by GZ2 users than bluer disk galaxies...
bar drawingBlog: Google Powered GZ2 Bar drawing spin off, 1 down…. October 5, 2009 by Ben and Karen http://blog.galaxyzoo.org/2009/10/05/google-powered-gz2-bar-drawing-spin-off-1-down/ link to site, now inactive
Blog: Google-powered Bar-drawing Zoo2 offshoot by Ben and Karen Sept 2009 http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb "We’ve made a sample of interesting galaxies from Galaxy Zoo2, most of which have bar structures, and we would like you to measure the length and thickness of the bars. Also we’d like you to check the shape of the galaxy and tell us how the spiral arms and bars are linked....We are also pioneering the use of the Google Maps interface for Galaxy Zoo science, which allows us to perform tasks like drawing on galaxies. Please note, that the bar drawing pages work best with Mozilla Firefox. ...We’ve describe the our science rationale: htp://www.icg.port.ac.uk/~hoyleb/bars/tutorial.php#s1 and there is a forum topic related to this page: http://www.galaxyzooforum.org/index.php?topic=276269.0 "
Website: Citizen Scientists Probe Early Galaxies By: Shannon Hall | September 29, 2014 Sky and Telescope http://www.skyandtelescope.com/astronomy-news/citizen-scientists-probe-early-galaxies-09292014/ "New data collected by Galaxy Zoo show early galaxies with central bars, providing implications about how galaxies grow."
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Publication: Galaxy Zoo: Quantifying Morphological Indicators of Galaxy Interaction Kevin R. V. Casteels, Steven P. Bamford, Ramin A. Skibba, Karen L. Masters, Chris J. Lintott, William C. Keel, Kevin Schawinski, Robert C. Nichol, Arfon M. Smith MNRAS http://arxiv.org/abs/1206.5020 Indicators of interaction are loosely wound or disturbed spiral arms, star formation, tidal tails, but fewer bars
Publication: Galaxy Zoo: Observing Secular Evolution Through Bars by Edmond Cheung, E. Athanassoula, Karen L. Masters, Robert C. Nichol, A. Bosma, Eric F. Bell, S. M. Faber, David C. Koo, Chris Lintott, Thomas Melvin, Kevin Schawinski, Ramin A. Skibba, Kyle W. Willett ApJ http://arxiv.org/abs/1310.2941 13,295 disk galaxies, 23% with bars, bars probably quench star formation 2380 visually selected disc galaxies found in Cosmic Evolution Survey (COSMOS) Hubble Space Telescope (HST) images.
Publication: *Galaxy Zoo: an independent look at the evolution of the bar fraction over the last eight billion years from HST-COSMOS by Thomas Melvin, Karen Masters Chris Lintott, Robert C. Nichol, Brooke Simmons, Steven P. Bamford, Kevin R. V. Casteels, Edmond Cheung, Edward M. Edmondson, Lucy Fortson, Kevin Schawinski, Ramin A. Skibba, Arfon M. Smith and Kyle W. Willett http://mnras.oxfordjournals.org/content/438/4/2882 Looked at 2380 visually selected disc galaxies found in Cosmic Evolution Survey (COSMOS) Hubble Space Telescope (HST) images, there are fewer barred galaxies found at higher redshifts (ie the younger universe)
Publication: Galaxy Zoo and ALFALFA: atomic gas and the regulation of star formation in barred disc galaxies by
Masters, Karen L.; Nichol, Robert C.; Haynes, Martha P.; Keel, William C.; Lintott, Chris; Simmons, Brooke; Skibba, Ramin; Bamford, Steven; Giovanelli, Riccardo; Schawinski, Kevin in http://adsabs.harvard.edu/abs/2012MNRAS.424.2180M bars remove hydrogen gas, so there is less star formationPublication: Galaxy Zoo: the environmental dependence of bars and bulges in disc galaxies by
Skibba, Ramin A.; Masters, Karen L.; Nichol, Robert C.; Zehavi, Idit; Hoyle, Ben; Edmondson, Edward M.; Bamford, Steven P.; Cardamone, Carolin N.; Keel, William C.; Lintott, Chris; Schawinski, Kevin in http://adsabs.harvard.edu/abs/2012MNRAS.423.1485SPublication: Galaxy Zoo: bar lengths in local disc galaxies by Hoyle, Ben; Masters, Karen. L.; Nichol, Robert C.; Edmondson, Edward M.; Smith, Arfon M.; Lintott, Chris; Scranton, Ryan; Bamford, Steven; Schawinski, Kevin; Thomas, Daniel http://adsabs.harvard.edu/abs/2011MNRAS.415.3627H longer bars are found in redder galaxies, short bars in bluer, biggest bars in ringed galaxies
Publication: Galaxy Zoo: bars in disc galaxies by Masters, Karen L.; Nichol, Robert C.; Hoyle, Ben; Lintott, Chris; Bamford, Steven P.; Edmondson, Edward M.; Fortson, Lucy; Keel, William C.; Schawinski, Kevin; Smith, Arfon M.; Thomas, Daniel http://adsabs.harvard.edu/abs/2011MNRAS.411.2026M a correlation found between big red galaxies and the presence of bars and bulges.
bar + ringhttp://talk.galaxyzoo.org/#/subjects/AGZ00062xl CGCG 499-094 CGCG499-094
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237680483027189826 1237680483027189826
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Budgieye
moderator
1.8 Spiral arms http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7ac0d43f77bd6000ff4
from Ringed and Pseudoringed Galaxies by EricFDiaz http://www.galaxyzooforum.org/index.php?topic=10635.0 The Origins of Spiral Arms Hydrodynamic Modeling How Two, Three and Four Arms Are Created by a Single Galactic Bar
Blog: Oh, Sweet Spiral Of Mine by Brooke Simmons 2013 http://blog.galaxyzoo.org/2013/04/26/oh-sweet-spiral-of-mine/ "what is the significance of the number of spiral arms? "
Talk: triple arm galaxy 3-armed three-armed spiral http://talk.galaxyzoo.org/#/subjects/AGZ0004me8 RA: 339.65579 DEC: 1.56685
RA: 242.90352 DEC: 4.88096Talk: 3 armed galaxy https://talk.galaxyzoo.org/#/subjects/AGZ000c7um
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Budgieye
moderator
1.9 Irregular and clumpy galaxies, low surface brightness LSB http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7c00d43f776b000107a
Hashtag #irregular irregular #clumpy clumpy
Dwarf Galaxy
A dwarf galaxy is a small galaxy composed of up to several billion stars. They come in many different morphologies:
Dwarf elliptical galaxy (dE)
Dwarf spheroidal galaxy (dSph)
Dwarf irregular galaxy (dl)
Dwarf spiral galaxy (from wikipedia)Forum: The DDO catalogue by AlexandredOr http://www.galaxyzooforum.org/index.php?topic=279797.0 a catalogue of dwarf galaxies. Unless error DDO means David Dunlap Observatory
Forum; I Zw 018, also known as MRK 0116 http://www.galaxyzooforum.org/index.php?topic=275042.msg429962#msg429962
a dwarf irregular galaxy s almost exclusively composed of hydrogen and helium [few stars!]Forum: Dwarf Galaxies thread http://www.galaxyzooforum.org/index.php?topic=4913.0
IRREGULAR GALAXIES
Forum: Irregular Galaxies http://www.galaxyzooforum.org/index.php?topic=1432.0
Blog: Taking Citizen Science Seriously January 18, 2011 by waveney http://blog.galaxyzoo.org/2011/01/18/taking-citizen-science-seriously/ "What are irregulars?
These are the galaxies that don’t fit into any other category. They are not elliptical, they are not spiral, they are not involved in a merger. In general they are small, numerous and most are blue with star forming regions. Are they one homogenous group or is their more than one type? Are their old irregulars? Where are they? How do they compare with other galaxies? These are just a few of the questions the project is looking at."Blog: Pictures from AAS June 2009 http://blog.galaxyzoo.org/2009/06/11/pictures-from-aas/ irregular galaxies project. Pamela’s poster describing the results of our survey into the reasons you participate in Galaxy Zoo:; Georgia’s poster describing our plans for future user testing of the Zoo 2 website:
Irregular classifications
irregular galaxy
CLUMPY GALAXIES, FAR AWAY AND LONG AGO ( These are Hubble Space Telescope images)
A brief history of clumpy galaxies http://blog.galaxyzoo.org/2010/05/25/a-brief-history-of-clumpy-galaxies/ " we can directly see how the galaxy population has evolved just by looking further and further away......the galaxy types [...] generally become “messier” the further back in time one looks. Furthermore, there appeared to be types of distant galaxies that we do not see today. Many of these galaxies comprise knots or clumps. In particular, many galaxies were found with an appearance of several clumps arranged in a line, and were named “chain galaxies”. Galaxies with two clumps were simply named “doubles”. There were also galaxies with the appearance of one clump with a tail, appropriately named “tadpole galaxies”! .....The extra depth of these data has revealed a population of clumpy galaxies that do not appear as chains, but rather more circular groups of clumps. These have been named “****clump clusters”.....Further studies of clumpy galaxies confirm that they are very young galaxies with lots of star formation occurring in the massive clumps, which may be embedded within a slightly older, smoother distribution of stars.
Blog: **Meeting the Astronomy World [AAS Austin, Texas] ** January 31, 2012 by Anna Han http://blog.galaxyzoo.org/2012/01/31/meeting-the-astronomy-world/ "I plan to continue searching for multiple AGN signatures in grism spectra of clumpy galaxies."
blue caterpiller, a Blue Blob ObjectZooniverse Letters http://letters.zooniverse.org/ In-house publication of science results,
Blue Caterillars irregulars by Peter Dzwig 2013 BBO Blue Blob Objects, distant galaxies seen in Hubble Space telescope images.
LOW SURFACE BRIGHTNESS GALAXIES
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237678601313583404 posted by elisabeth
Low Surface Brightness (LSB) galaxies.. distant, dark and mysterious... http://www.galaxyzooforum.org/index.php?topic=271960.0
Reference Low Surface Brightness Galaxies in the Local Universe. I. The Catalog with black on white images
Talk: Dark Galaxy http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0001069?page=4&comment_id=5439a6e6415ac128a3001f1a about any sort of dark galaxy, eg. low surface brightness, hydrogen only, or dark matter. Looking for galaxies with unexplained disturbance.
Forum: The MAILYAN catalogue http://www.galaxyzooforum.org/index.php?topic=280055.0 dwarf galaxies
website: Dwarf Galaxy Size Comparison Chart http://www.rhysy.net/galaxy-sizes.html
Here is an example of a low surface brightness galaxy
![Example Alt Text](
"largest known disk galaxy" Malin 1 compared in SDSS, CFHT, and DECaLS
SDSS and CFHT at the same scale
Hint of spiral arms in DECaLShttp://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237661068728139925
http://cfht.hawaii.edu/en/news/Malin1/
http://legacysurvey.org/viewer?ra=189.2467&dec=14.3296&zoom=13&layer=decals-dr5
)
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Budgieye
moderator
1.10 Dust, red spirals, blue ellipticals, quenching http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7e9db90c76710000f80
Talk: Zone of Avoidance http://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001962?page=1&comment_id=54de46566975263491000620 galaxies are hard to see through the dust of our Milky Way galaxy #ZOAG
http://galaxyzooblog.files.wordpress.com/2014/02/colormass.png
Blog: The Green Valley is a Red Herring by kevinschawinski 2014 http://blog.galaxyzoo.org/2014/02/21/the-green-valley-is-a-red-herring/
Blog: Two Atoms Populate on a Dust Grain by Brooke Simmons April 2013 http://blog.galaxyzoo.org/2013/04/11/two-atoms-populate-on-a-dust-grain/ "Dust grains [...] allowing atoms to meet and combine into molecules and cooling the gas clouds they live in — which in turn helps new stars form? Heating and cooling, gravity and pressure, and the interplay between atoms, molecules, and radiation..."
Blog: Quench: New Classifications Needed August 23, 2013 by ltrouille http://blog.galaxyzoo.org/2013/08/23/quench-new-classifications-needed/ "We have a few dozen new galaxies in GZ Quench that need your classification savvy"
Blog Quench data update August 19, 2013 by Kyle Willett http://blog.galaxyzoo.org/2013/08/19/gz-quench-data-update/
Blog: GZ Quench: Classification Complete – Now the Real Fun Begins! August 2, 2013
by ltrouille "http://blog.galaxyzoo.org/2013/08/02/gz-quench-classification-complete-now-the-real-fun-begins/ completed Phase 1 of Galaxy Zoo Quench! Over 1600 people lent us their time and pattern-recognition skills to complete the needed 120,000 classifications...Blog and video: Next GZ (Tools!) Hangout: Wednesday 24th July, 20:30 GMT http://blog.galaxyzoo.org/2013/07/23/next-gz-tools-hangout-wednesday-24th-july-2030-gmt/ new Zoo Tools data analysis
Website: Galaxy Zoo Quench http://quench.galaxyzoo.org/ Zooniverse project now complete.
Blog and hangout video: Galaxy Zoo Quench – Experience the Full Scientific Process by ltrouille July 2013 http://blog.galaxyzoo.org/2013/07/10/galaxy-zoo-quench-experience-the-full-scientific-process/"The entire process of classifying, analyzing, discussing, and writing the article will take place over an 8 week period*, beginning July 18th. After classifying the galaxies, volunteers will use the tools available within Zooniverse to plot the data and look for trends."
Blog: Quench Boost: A How-To Guide, Part 1 by ltrouille 2013 http://blog.galaxyzoo.org/2013/08/23/quench-boost-a-how-to-guide-part-1/ learn to use Quench Tools
Blog: Quench Boost: A How-To-Guide, Part 2 August 29, 2013 by ltrouille Quench Boost: A How-To-Guide, Part 2 "navigate using Tools to compare results from galaxies you classified with the rest of the post-quenched galaxy sample."
Blog: Quench Boost: A How-To-Guide, Part 3 by ltrouille Sept 2013 http://blog.galaxyzoo.org/2013/09/13/quench-boost-a-how-to-guide-part-3/ "Use the results from the classifications that you all provided to see if there’s anything different about the post-quenched galaxies that have merged or are in the process of merging..."
Blog: Quench Boost: A How-To-Guide, Part 4 2013 by ltrouille http://blog.galaxyzoo.org/2013/09/15/quench-boost-a-how-to-guide-part-4/ "There are more Quench Sample mergers (505) than Control mergers (245)… It seems to suggest mergers have a role to play in quenching star formation as well."
Blog: GZ Quench: Classification Complete – Now the Real Fun Begins! August 2, 2013 by ltrouille http://blog.galaxyzoo.org/2013/08/02/gz-quench-classification-complete-now-the-real-fun-begins/ Quench Talk, Tools and Authorea (writing the paper)
Blog and video: Next GZ (Tools!) Hangout: Wednesday 24th July, 20:30 GMT July 23, 2013 by Brooke Simmons http://blog.galaxyzoo.org/2013/07/23/next-gz-tools-hangout-wednesday-24th-july-2030-gmt/ using the new Zoo Tools data analysis
Blog: Zoo Tools: A New Way to Analyze, View and Share Data July 22, 2013 by ttfnrob http://blog.zooniverse.org/2013/07/22/zoo-tools-a-new-way-to-analyze-view-and-share-data/Zoo Tools works in an environment which we call the Dashboard
Blog: Galaxy Zoo Quench: A New Kind of Citizen Science July 19, 2013 by ttfnrob http://blog.galaxyzoo.org/2013/07/19/galaxy-zoo-quench-a-new-kind-of-citizen-science/ "A new ‘mini’ project went live yesterday called Galaxy Zoo Quench. This project involves new images of 6,004 galaxies drawn from the original Galaxy Zoo....a sample of galaxies that have recently and abruptly quenched their star formation. These galaxies are aptly named Post-Quenched Galaxies. They provide an ideal laboratory for studying galaxy evolution."
Blog: Galaxy Zoo Quench – Experience the Full Scientific Process July 10, 2013 by ltrouille http://blog.galaxyzoo.org/2013/07/10/galaxy-zoo-quench-experience-the-full-scientific-process/ "Post-Quenched Galaxies. They provide an ideal laboratory for studying how galaxies evolve from blue, star-forming spiral galaxies to red, non-star-forming elliptical galaxies."
Blog: My favourite colour magnitude diagram by karenlmasters May 2012 http://blog.galaxyzoo.org/2012/05/09/my-favourite-colour-magnitude-diagram/ " red being up and blue [is] down. [...]. Bigger and brighter is to the right."
Blog: Star formation rate vs. color in galaxy groups from Andrew Wetzel 2011 http://blog.galaxyzoo.org/2011/08/02/star-formation-rate-vs-color-in-galaxy-groups/ "why galaxies located in groups and clusters have significantly lower star formation rates, and hence significantly redder colors,"
Blog and podcast: Talking about Galaxy Zoo on the Jodcast by karenlmasters May 2011 http://blog.galaxyzoo.org/2011/05/17/talking-about-galaxy-zoo-on-the-jodcast/
Blog: Red spirals at night, astronomers' delight by Chris Lintott) 2010 http://blog.galaxyzoo.org/2010/02/12/red-spirals-at-night-astronomers-delight/ "It turns out that 6% of spiral galaxies are red"
Blog; Post starburst galaxies at the AAS June 7, 2011 http://blog.galaxyzoo.org/2011/06/07/post-starburst-galaxies-at-the-aas/ "The conclusion – post starburst galaxies are dominated by objects who have intermediate morphology (often half of you thought they were disks and half thought they were ellipticals – telling us that they are just hard to classify!). They are found in the low mass part of the “green valley” (ie. they are redder than most blue spirals, but bluer than most red ellipticals) and Ivy suggests this shows they are probably on the way to turning into the low mass end of the red sequence."
Blog; Talking about Galaxy Zoo on the Jodcast http://blog.galaxyzoo.org/2011/05/17/talking-about-galaxy-zoo-on-the-jodcast/
Blog: Observing Red Galaxies With VIRUS-P July 23, 2010 by Peter Yoachim http://blog.galaxyzoo.org/2010/07/23/observing-red-galaxies-with-virus-p/ "When I first read the paper I thought, “Wow, that’s really cool, spirals shouldn’t look red like that, wonder what happened to those galaxies.”, followed shortly by, “OMG, we have the perfect instrument to make follow-up observations of these objects!...the narrow slit blocks most of the light from the galaxy. This is a tragedy! That light traveled for (literally) millions of years only to bounce off the slit mask at the last second. Rather than use a long slit, VIRUS-P uses a fiber-optic bundle to pipe the light around. we can see the rotation of the disk. The top left of the galaxy is moving away form us, while the bottom right is moving towards us..It should be clear now how VIRUS-P will be great for observing the red spirals. We can compare the motions of red spiral disks to regular spirals, and we can measure stellar ages to try and determine when star formation shut off in these galaxies.”
Blog: Red spirals at night, astronomers' delight February 12, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/02/12/red-spirals-at-night-astronomers-delight/ "If it was the environment that was driving the dramatic change from blue to red, then we’d expect the properties of the red spirals to depend on the environment. We might find that those in the densest environments were redder than their (still quite red) counterparts further out, for example. But we don’t. We don’t see any connection between the properties of the red spiral and the environment they find themselves in."
Blog: Galaxy Zoo Red Spiral Paper Submitted October 22, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/10/22/galaxy-zoo-red-spiral-paper-submitted/ link to paper
Blog: Galaxy Zoo Paper on Dust in Spirals Submitted. August 2009 http://blog.galaxyzoo.org/2009/08/24/galaxy-zoo-paper-on-dust-in-spirals-submitted/
Our main conclusions ended up being:
Spiral galaxies are reddened as they become more inclined due to the
presence of dust (this effect is explained in great detail in Blue Sky
and Red Spirals)Spiral galaxies with large bulges are much redder than spiral galaxies
with no/small bulges. This effect is larger than the dust reddening –
face-on spirals with large bulges are redder than edge-on spirals with
no bulge (on average).There is more dust reddening in spiral galaxies with small bulges than
in those with large bulges.There is a peak in the dust content of spirals at moderate
luminosities. Very luminous and very dim spirals both have less dust
reddening. Very dim spirals are physically smaller, and make less dust
than brighter ones. Very bright spirals usually don’t have a lot of
recent star formation, and as dust is destroyed over time we may just
be seeing that effect....because dust always dims galaxies that means that inclined spirals
are often “left out” of samples which people use to study cosmology,
or do galaxy evolution (just because you can’t see them, or they’re
below a cut in brightness you needed to make)."Blog: Back at IRAM 30m… August 2009 http://blog.galaxyzoo.org/2009/08/27/back-at-iram-30m/ "at the IRAM 30m telescope for the third time this year this time measuring the CO content in elliptical galaxies. This follows on from Kevin’s long-standing work of using blue elliptical galaxies to test whether or not AGN (Active Galactic Nuclei) are responsible for dispelling gas and thus putting an end to star formation"
poster link belowBlog: Unveiling the Mass of Galaxies with Vera Rubin June 15, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/06/15/unveiling-the-mass-of-galaxies-with-vera-rubin/ "...rotation curves of galaxies (observations that provided the first strong evidence for dark matter in galaxies). discovering a galaxy in which the stars rotated in two directions)/ also a link to Karen's poster on dust
Blog:More Comments about the Conference in Malaysia http://blog.galaxyzoo.org/2009/04/14/more-comments-about-the-conference-in-malaysia/ how redder galaxies are more strongly clustered than bluer galaxies.
blue early-typeBlog: Fifth Galaxy Zoo paper accepted – Everything you've ever wanted to know about Blue Early-type galaxies!
Blog: Blue Sky and Red Spiralsby Karen Masters December 2008 http://blog.galaxyzoo.org/2008/12/18/blue-sky-and-red-spirals/ "spirals definitely get redder as they get more edge-on. So extinction due to dust is clearly important. Because Sloan measures the galaxies in 5 different wavelengths, we can make 4 Sloan colours (in Astronomy the colour is just the difference in the brightness in two different bands) and look at the relative amount of extinction with wavelength which provides information on the source of the scattering and absorption...elliptical galaxies do not suffer from this effect, so if you compare the mean properties of ellipticals and spirals your answer will be biased by the effect of dust."
Blog: Hola from Pico Veleta December 2008 http://blog.galaxyzoo.org/2008/12/30/hola-from-pico-veleta/ IRAM SEO Services UK millimeter radio telescope. We’ll be looking at merging galaxies selected from the Galaxy Zoo catalogues, and then at some of the nearest blue ellipticals. http://blog.galaxyzoo.org/2009/01/02/iram-30m-30mm-under/
Blog: Galaxy Zoo and STAGES joint press release November 2008 http://blog.galaxyzoo.org/2008/11/25/galaxy-zoo-and-stages-joint-press-release/ he exciting simultaneous discovery of a significant population of red spiral galaxies by both the Galaxy Zoo and Space Telescope A901/902 Galaxy Evolution Survey (STAGES) projects.
Blog: Fourth Paper Submitted: Lots of Blue Ellipticals! June 2008 http://blog.galaxyzoo.org/2008/06/25/fourth-paper-submitted-lots-of-blue-ellipticals/
Blog: Blue ellipticals – lots of them! January 7, 2008 by Kevin http://blog.galaxyzoo.org/2008/01/07/blue-ellipticals-from-kevin/ "I did classify 50 000 galaxies from the SDSS by eye in a week, dividing galaxies into ellipticals vs. everything else; once I was done, I checked to see what was left. And lo and behold, there was a small but significant population of very blue elliptical galaxies! This project of course led to Galaxy Zoo, since 50 000 may sound a lot, but it’s only a tiny fraction of the 1 million in SDSS. So now with all the classifications from all you guys (thanks so much!), I’ve been able to study blue ellipticals in much more detail."
Publication: Galaxy Zoo: A Catalog of Overlapping Galaxy Pairs for Dust Studies
Keel, William C.; Manning, Anna M.; Holwerda, Benne W.; Mezzoprete, Massimo; Lintott, Chris J.; Schawinski, Kevin; Gay, Pamela; Masters, Karen L. http://adsabs.harvard.edu/abs/2013PASP..125....2K 1990 galaxy pairs, where distant galaxy shines through a nearby galaxy, can use it to measure the amount of reddening due to dust.Publication; The Green Valley is a Red Herring: Galaxy Zoo reveals two evolutionary pathways towards quenching of star formation in early- and late-type galaxies. by Kevin Schawinski, C. Megan Urry, Brooke D. Simmons, Lucy Fortson, Sugata Kaviraj, William C. Keel, Chris J. Lintott, Karen L. Masters, Robert C. Nichol, Marc Sarzi, Ramin, Skibba, Ezequiel Treister, Kyle W. Willett, O. Ivy Wong, Sukyoung K. Yi MNRAS http://arxiv.org/abs/1402.4814 When more borderline galaxies are included in the data, there are more galaxies found in the transitional zone "green valley" as they change colour to red.
Publication: The different star formation histories of blue and red spiral and elliptical galaxies
Tojeiro, Rita; Masters, Karen L.; Richards, Joshua; Percival, Will J.; Bamford, Steven P.; Maraston, Claudia; Nichol, Robert C.; Skibba, Ramin; Thomas, Daniel MNRAS http://adsabs.harvard.edu/abs/2013arXiv1303.3551T We use Galaxy Zoo to define three morphological classes of galaxies, namely early types (ellipticals), late-type (disc-dominated) face-on spirals and early-type (bulge-dominated) face-on spirals. We classify these galaxies as blue or red. Red spirals have less star formation, so have less blue colour, and look redder. Blue ellipticals have less dust than blue spirals.Publication: Galaxy Zoo: passive red spirals by Masters, Karen L.; Mosleh, Moein; Romer, A. Kathy; Nichol, Robert C.; Bamford, Steven P.; Schawinski, Kevin; Lintott, Chris J.; Andreescu, Dan; Campbell, Heather C.; Crowcroft, Ben; Doyle, Isabelle; Edmondson, Edward M.; Murray, Phil; Raddick, M. Jordan; Slosar, Anže; Szalay, Alexander S.; Vandenberg, Jan http://adsabs.harvard.edu/abs/2010MNRAS.405..783M some spirals have lost their reserves of hydrogen gas, cannot form new blue stars, and the predominant colour is from old red stars
Publication: The distribution of interplanetary dust between 0.96 and 1.04 au as inferred from impacts on the STEREO spacecraft observed by the heliospheric imagers by Davis + http://adsabs.harvard.edu/abs/2012MNRAS.420.1355D This is about meteor dust fragments
Publication: Galaxy Zoo: dust in spiral galaxies by Masters, Karen L.; Nichol, Robert; Bamford, Steven; Mosleh, Moein; Lintott, Chris J.; Andreescu, Dan; Edmondson, Edward M.; Keel, William C.; Murray, Phil; Raddick, M. Jordan; Schawinski, Kevin; Slosar, Anže; Szalay, Alexander S.; Thomas, Daniel; Vandenberg, Jan http://adsabs.harvard.edu/abs/2010MNRAS.404..792M Galaxies become redder as they are viewed edge-on and we have to look through more dust, more luminous galaxies have more red due to more dust.
Forum: Post Starburst galaxies http://www.galaxyzooforum.org/index.php?topic=277679.0 with spectra
Forum: Saturday, 31st August, 2013: A Paler Shade of White by JeanTate http://www.galaxyzooforum.org/index.php?topic=281179.0 colours of dusty galaxies in SDSS DR7 and DR10
Forum: Saturday, 17th August, 2013: White by JeanTate http://www.galaxyzooforum.org/index.php?topic=281083.0 Post-quench galaxies " a scatterplot I created using Tools; it plots the colors of (almost) all the 3002 objects in the Quench Sample catalog [7], one blue point for each object... " the absorption spectra of dusty galaxies.
Forum: Wednesday, 5th October, 2011: Your Clicks At Work (Again) by JeanTate http://www.galaxyzooforum.org/index.php?topic=279504.0 "What they found is quite interesting: the stars in the bulges of red spirals are just like the stars in elliptical galaxies!"
Forum: Sunday, 24 July 2011: Arp 220: Dust and Molecular Gas by EigenState http://www.galaxyzooforum.org/index.php?topic=279339.0 " bright central region is a glowing cloud of exceedingly hot (» 106 K) gas rushing out of the galaxy, driven by a "superwind" presumed to result from explosive activity generated by the formation of hundreds of millions of new stars...spectrum of Arp 220 [2] observed over the range of 200 to 700 μm (1500 to 427 GHz) shows strong emission features from pure rotational transitions of CO and H2O; high rotational transitions of HCN in absorption; rotational transitions of the rare molecules OH+, H2O+, and HF in absorption; as well as electric-quadrupole allowed, fine structure transitions within the ground electronic states of the atomic species [CI] and [NII]"
- Introduction to Arp 220.
- Interstellar Dust.
2.1. Extinction.
2.2. Emission. - Molecular Gas.
3.1. Molecular Vibration.
3.2. Molecular Rotation. - Spectroscopic Investigations of Arp 220.
4.1. Continuum Emission in Arp 220.
4.2. Molecular Spectra in Arp 220. - Conclusions.
- Acknowledgments.
- References and Notes.
Talk: Arp 220 and "The Big Bang Theory [TV show]" by Budgieye http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00016fq "There are usually scientific equations on the whiteboards, and finally I recognized something that I understood. Arp 220 featured In "The Closure Alternative" 2013 "
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Index for Galaxy Zoo Talk: Features of Galaxies, overlaps, collisions https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
2.1 Edge-on, dust lanes 2.2 Nucleus, nuclear bulge, and bulgeless, X-shaped bulges 2.3 Overlapping galaxies 2.4 Ring galaxy (empty in the middle) created by collision that removed the inside of the galaxy) (ring around a galaxy) 2.5 ringed galaxy (ring around a galaxy) and pseudo-ringed galaxy, resonance and bars , nuclear rings 2.6 Polar rings 2.7 gas outfall / infall M82 look alikes 2.8 Galaxy Mergers and Flybys and Merger Zoo 2.9 Galaxy collisions and shell galaxies created by high speed collisions 2.10 double nuclei and shell galaxies created by two revolving nuclei
2.1 Edge-on, dust lanes https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
Hashtag: #edgeon edgeon #dustlane dustlane
http://blogs.zooniverse.org/galaxyzoo/files/2010/12/NGC5866-869x1024.jpg
Talk: Dust lane visibility in DECaLS http://talk.galaxyzoo.org/?_ga=1.197710185.711441289.1371287491#/boards/BGZ0000006/discussions/DGZ0001uk1?page=1&comment_id=56c8d246a0761e633f000791 I think that might be a general feature - the DECaLS images are in the g,r, and z bands, while SDSS were in g,r, and i. That means the lowest-wavelength band in DECaLS is a little bit redder, which means it's less susceptible to absorption by dust - so you'd expect dust lanes to be slightly less prominent in these images than the old Galaxy Zoo 1 and 2 images.
Forum: Edge-ons with X-shaped bulges, indicate awesome bars thread http://www.galaxyzooforum.org/index.php?topic=275643.0
Forum: Flat Galaxy Catalogue by elisabeth http://www.galaxyzooforum.org/index.php?topic=279809.0 #FGC matching up edge-on galaxies to the catalog.
Forum: Sexy Edge on Spirals and such http://www.galaxyzooforum.org/index.php?topic=98.0
Forum: Amazing figure 8 dust lane by Mitch http://www.galaxyzooforum.org/index.php?topic=276977.0 NGC 3718
Blog; A Spindle in the Dragon http://blog.galaxyzoo.org/2010/12/31/a-spindle-in-the-dragon/ a lenticular galaxy with a dust lane
Blog: What is this dust stuff for anyway? by Bill Keel April 2008 http://blog.galaxyzoo.org/2008/04/28/what-is-this-dust-stuff-anyway/ "...understanding of stellar nurseries...some is produced in supernovae.. but it has a huge effect on what we see."
Zooniverse Letters http://letters.zooniverse.org/ In-house publication of science results,
HUmoungous galaxies of the Edge-On Spiral by Jean Tate 2012 "I report the discovery of six "edge-on" disk galaxies in SDSS DR9, at less than z less than 0.32, each with a g-band effective radius exceeding 18 kpc."Publication: The Ultraviolet Attenuation Law in Backlit Spiral Galaxies William C. Keel, Anna M. Manning, Benne W. Holwerda, Chris J. Lintott, Kevin Schawinski Astronomical Journal (in press Jan 2014) http://arxiv.org/abs/1401.0773 Uses the light of an elliptical galaxy shining through the arms of a spiral galaxy to explore the distribution of dust in the spiral galaxy.
Publication: Galaxy Zoo: dust and molecular gas in early-type galaxies with prominent dust lanes by Kaviraj, Sugata
Ting, Yuan-Sen; Bureau, Martin; Shabala, Stanislav S.; Crockett, R. Mark; Silk, Joseph; Lintott, Chris; Smith, Arfon; Keel, William C.; Masters, Karen L.; Schawinski, Kevin; Bamford, Steven P. MNRAS http://adsabs.harvard.edu/abs/2012MNRAS.423...49K dust and associated molecular gas in 352 nearby early-type galaxies (ETGs) with prominent dust lanesPublication: Galaxy Zoo: dust lane early-type galaxies are tracers of recent, gas-rich minor mergers by Shabala, Stanislav S.; Ting, Yuan-Sen; Kaviraj, Sugata; Lintott, Chris; Crockett, R. Mark; Silk, Joseph; Sarzi, Marc; Schawinski, Kevin; Bamford, Steven P.; Edmondson, Edd MNRAS http://adsabs.harvard.edu/abs/2012MNRAS.423...59S early-type galaxies [sprirals] are much more likely to host emission-line AGN
Blog: Steven http://blog.galaxyzoo.org/2010/05/21/classification-tree-tweaks/ "It can be difficult to tell the difference between an edge-on disk and a cigar-shaped elliptical galaxy. The clearest clue is probably at the ends: disks will have fairly sharp ends whereas ellipticals are more rounded. If the galaxy is small though, it can be impossible to tell; just go with your best guess and move on to the next galaxy."
NGC 1343NGC1343
Forum: Thursday May 16, 2013 Nuclear Rings are not lenses by Budgieye http://www.galaxyzooforum.org/index.php?topic=280778.0 "It obviously exists for the sole purpose of making the lens hunter's life harder. The sequence of events..."
Forum: Wednesday, 24th October, 2012: Broken and Truncated Eos by JeanTate http://www.galaxyzooforum.org/index.php?topic=280473.0 UGC 10288 UGC10288 587722952770256980, NGC 5529 NGC5529 587736941444530242
Forum: Friday, January 6th, 2012: Unprecedented News! by Zeus2007 http://www.galaxyzooforum.org/index.php?topic=279798.0 Two overlapping edgeon galaxies
Forum: Two edge-on spiralshttp://www.galaxyzooforum.org/index.php?topic=98.msg589276#msg589276
Very thin edge-on https://talk.galaxyzoo.org/#/subjects/AGZ000djql
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Budgieye
moderator
2.2 Nucleus, Nuclear bulge, and bulgeless X-shaped nuclei nuclear rings https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Artist's Concept Illustrating Bulge & No Bulge Spiral Galaxies NASA's image of the day, public domain, from Wikipedia
spherical halohttp://talk.galaxyzoo.org/#/subjects/AGZ0002xtj showing small galactic bulge but large spherical galactic halo. Also a nice dust lane. #bulge #halo #dustlane
bulgelessBlog: Observing Run: Raw Data versus Finished Product May 19, 2013 by Brooke Simmons
https://blog.galaxyzoo.org/2013/05/19/observing-run-raw-data-versus-finished-product/
"this galaxy has a growing black hole, and probably hasn’t had any significant mergers, because it has very little, if any, bulge..look for the faint stellar streams that signify the remnants of a minor merger. explanation of dithering in astrophotographyNGC7814 #NGC 7814
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237652944786292742
http://talk.galaxyzoo.org/#/subjects/AGZ0001pjj
Publication: Spheroidal post-mergers in the local Universe by Carpineti, Alfredo; Kaviraj, Sugata; Darg, Daniel; Lintott, Chris; Schawinski, Kevin; Shabala, Stanislav MNRAS http://adsabs.harvard.edu/abs/2012MNRAS.420.2139C AGN, dominant bulge
Publication: The fraction of early-type galaxies in low-redshift groups and clusters of galaxies by Hoyle, Ben; Masters, Karen L.; Nichol, Robert C.; Jimenez, Raul; Bamford, Steven P.MNRAS http://adsabs.harvard.edu/abs/2012MNRAS.423.3478H bulge, halo, galaxies evolve, then they merge to form massive galaxies
Publication: Galaxy Zoo: bars in disc galaxies by Masters, Karen L.; Nichol, Robert C.; Hoyle, Ben; Lintott, Chris; Bamford, Steven P.; Edmondson, Edward M.; Fortson, Lucy; Keel, William C.; Schawinski, Kevin; Smith, Arfon M.; Thomas, Daniel http://adsabs.harvard.edu/abs/2011MNRAS.411.2026M a correlation found between big red galaxies and the presence of bars and bulges.
X-shaped nuclei
Collection X-shaped - Collection ID: CGZS000h8w - by Alpha Aurigae http://talk.galaxyzoo.org/#/collections/CGZS000h8w
The Milky Way Galaxy is X-shaped https://phys.org/news/2016-03-wise-reveals-x-shaped-bulge-galaxy.html
The X-shaped Bulge of the Milky Way revealed by WISE
Melissa Ness1,2 & Dustin Lang https://arxiv.org/pdf/1603.00026.pdfTalk: Question for the science team about galaxies with x-shaped nuclei. by Alpha Aurigae http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ00012vr?page=2&comment_id=547a8b23415ac103ed0003d4
N-body simulation of barred galaxy (disk and halo)
shows rotation of x-shape #x-shape
https://www.youtube.com/watch?time_continue=87&v=gSwiXwP56js
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/743949 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237648720145875110
SDSS J101832.52-005932.3
https://apod.nasa.gov/apod/image/1508/hcg87_gmoss_960.jpg
https://apod.nasa.gov/apod/ap150809.html https://apod.nasa.gov/apod/ap150809.html great image of X-shape
X-shaped bulge NGC3762
Forum: Re: Edge-ons with X-shaped bulges, indicate awesome bars [list of galaxies] by jopipen http://www.galaxyzooforum.org/index.php?topic=275643.msg641417#msg641417
list of about 50 possible X-shaped bulges
https://talk.galaxyzoo.org/#/subjects/AGZ000eed6http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=212.16299261&dec=-1.49395349
NGC0128 X-shaped bulge
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237678435402580180 1237678435402580180
http://adsabs.harvard.edu/abs/2006ApJ...637..214M "a spectacular secondary vertical buckling instability that leads to the appearance of characteristic boxy/peanut/X-shaped bulges"
X-shaped bulge NGC 5746 NGC5746Talk: X-shape http://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001bn4?page=1&comment_id=55abb81c469d9200e60000b1
http://zooniverse-static.s3.amazonaws.com/www.galaxyzoo.org/subjects/standard/56f3dc7d5925d9004202539d.jpeg
http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?id=1237664088600936597 SDSS J034108.65+152337.0
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/840946?comment=1388436&page=1
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237654605335363755
https://talk.galaxyzoo.org/#/subjects/AGZ000ca76
Forum thread: Star Formation Rings (nuclear rings) http://www.galaxyzooforum.org/index.php?topic=278908.0
Forum: Wednesday, 5th October, 2011: Your Clicks At Work (Again) by JeanTate http://www.galaxyzooforum.org/index.php?topic=279504.0 "What they found is quite interesting: the stars in the bulges of red spirals are just like the stars in elliptical galaxies!"
Forum: Wednesday, 17th October, 2102: Bless Eos (and Ordinary Ones Too) by JeanTate http://www.galaxyzooforum.org/index.php?topic=280464.0 a collection of #edgeon galaxies
http://talk.galaxyzoo.org/#/subjects/AGZ000bbyj
Buried rings
Thursday May 16, 2013 Nuclear Rings are not lenses http://www.galaxyzooforum.org/index.php?topic=280771.msg633520#msg633520
Bulgeless galaxies
potentially bulgeless host galaxies from visual selection. http://mnras.oxfordjournals.org/content/429/3/2199/F2.medium.gif
Black hole mass versus bulge mass (left) and total host galaxy stellar mass (right)Publication: Galaxy Zoo: bulgeless galaxies with growing black holes by Simmons, Brooke D.; Lintott, Chris; Schawinski, Kevin; Moran, Edward C.; Han, Anna; Kaviraj, Sugata; Masters, Karen L.; Urry, C. Megan; Willett, Kyle W.; Bamford, Steven P.; Nichol, Robert C. in http://mnras.oxfordjournals.org/content/429/3/2199.full MNRAS http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:1207.4190 "A galaxy lacking a central bulge thus must have a formation history free of violent formation processes. This implies a lack of significant mergers, ....This paper uses morphological classifications from the Galaxy Zoo1 project (Lintott et al. 2008, 2011) to construct a sample of bulgeless galaxies that host actively growing black holes. Selecting galaxies that lack classical bulges (as opposed to galaxies with a more varied history of both secular and merger-driven evolution) enables the isolated study of black hole growth in the absence of mergers...None of the galaxies in the sample show evidence of tidal features at the SDSS depth,
Forum: Wednesday, 16th January, 2013: AGN in Bulgeless Galaxies by JeanTate http://www.galaxyzooforum.org/index.php?topic=280591.0 Excellent explanation of Galaxy Zoo: Bulgeless Galaxies With Growing Black Holes by Simmons et al. "Remember when you classified a Galaxy Zoo 2 object (an SDSS one) as a spiral, you also got a question like "How prominent is the central bulge, compared with the rest of the galaxy?" Or, as Brooke and fellow authors describe it "Galaxy Zoo volunteers are asked to classify randomly chosen colour images of SDSS systems by clicking buttons in response to a set of descriptive questions arranged into a decision tree. The most relevant here is a question which asks volunteers to classify the bulges of systems already identified as face-on spirals into one of four categories : NO-BULGE, JUST-NOTICEABLE, OBVIOUS and DOMINANT." "
Bulges and nuclei and AGNs, oh my!
https://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ0001yz4?Posted
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Budgieye
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2.3 Overlapping galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Hashtag: #overlap overlapOverlapping galaxies are useful for research, because the composition of the nearer galaxy can be determined as it absorbs light from the more distant galaxy.
Talk: Two different spectra for the same galaxy in DR9 https://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0002j7h?page=1&comment_id=5942d90661ec36008d0005d8 overlapping galaxies seen in spectrum
Dr Keel's overlap catalog http://adsabs.harvard.edu/cgi-bin/bib_query?2013PASP..125....2K
Forum OOTD Wednesday, 31 December 2013: overlaps and the ultraviolet by NGC3314 http://www.galaxyzooforum.org/index.php?topic=281543.0 "This OOTD marks the acceptance of the second GZ overlap paper for publication - The Ultraviolet Attenuation Law in Backlit Spiral Galaxies."
Forum: Wanted! Galaxy pairs which overlap but are not merging http://www.galaxyzooforum.org/index.php?topic=6732.0
Forum: Hubble Overlapping galaxies please, not merging galaxies http://www.galaxyzooforum.org/index.php?topic=277593.0
And also a congratulations to Half65, who through his work in the overlapping galaxies project is now a co-author of a galaxy zoo paper! Half65 say overlap …overlap …overlap …
Forum OOTD: Wednesday, 16th March, 2011: a controversial galaxy [NGC 7603] by Jean Tate http://www.galaxyzooforum.org/index.php?topic=279013.0 overlap or merger
587742572687917067 NGC 3861
Blog: Galaxy overlaps at the AAS [Austin, Texas] January 11, 2012 http://blog.galaxyzoo.org/2012/01/11/galaxy-overlaps-at-the-aas/ "we compared visible-light data with ultraviolet data (from the GALEX satellite or a UV/optical monitor instrument on the European Space Agency’s XMM-Newton) to compare the amounts of optical and ultraviolet absorption in galaxies. This tells us, for example, how much we should correct Hubble measurements for high-redshift galaxies...the flat so-called Calzetti extinction law in star-forming galaxies – results from the way dust clumps into regions of larger and smaller extinction that we usually see blurred together...In other news, a Canadian astronomer working with NED found a new use for the overlap catalog including the “reject” list – to distinguish galaxies in pairs which are seen moving together or apart, since we often have both redshifts and from the dust we know which one is in front."
Blog: A Kitt Peak gallery June 29, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/06/29/a-kitt-peak-gallery/
Blog: Dust in the Zoo – chapters opening, continuing, and closing May 4, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/05/04/dust-in-the-zoo-chapters-opening-continuing-and-closing/ " the sample gathering for overlapping galaxy systems from the classic Zoo (1 and 2, both using the Sloan survey) is now complete. Keeping some statistics on systems reported on the forum, Our working list now contains about 2187 pairs ...There are pairs of edge-on galaxies crossing at sharp angles (X-pairs), which show us how think their dust layers are. There are pairs with elliptical or S0 background galaxies, ideally suited to measuring foreground dust because they are smooth and symmetric...Arp 198 is what we have started calling a Q-type pair, where the background galaxy is seen edge-on and almost radial to the foreground one. When we first used this technique on small numbers of galaxies in the 1990s, I did not yet appreciate how useful such pairs can be. The small amount of foreground galaxy backlit for examination is balanced by the fact that we only need to interpolate across a small wedge in angle to estimate its light in front of the background galaxy, so we get unusually accurate measurements of the changes in dust absorption between spiral arms and interarm regions. "
UGC 5769 and 5770http://skyserver.sdss.org/dr7/en/tools/explore/obj.asp?id=587742013810343948
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237667735035248723
Blog: Overlapping galaxies in color and in detail June 2008 http://blog.galaxyzoo.org/2008/06/21/overlapping-galaxies-in-color-and-in-detail/
SDSS J215311.30-073533.5,
Blog: Dust pathfinding with Galaxy Zoo by Bill Keel June 2009 http://blog.galaxyzoo.org/2009/06/14/dust-pathfinding-with-galaxy-zoo/ color-composite images from our latest observations at the WIYN 3.5-meter telescope in Arizona done to follow up overlapping-galaxy pairs from the Forum. Here are three samples, showing how much more detail we can see with long exposures one the objects have been found from the SDSS data
Blog: Return to Kitt Peak November 2008 http://blog.galaxyzoo.org/2008/11/19/return-to-kitt-peak/ images of six overlapping-galaxy pairs, two of which were only found in the Zoo recently, coming from the new celestial real estate covered in the seventh SDSS data release.
overlapBlog: NGC 3314 gets a counterpart May 8, 2008 by Bill Keel http://blog.galaxyzoo.org/2008/05/08/ngc-3314-gets-a-counterpart/ a face-on spiral almost exactly in front of an edge-on spiral.
Blog: We're back april 2008 http://blog.galaxyzoo.org/2008/04/29/were-back/ "The main aim for tonight is to fill in our collection of elliptical/spiral pairs; we’ve noticed we’ve done almost twice as many spiral/spiral pairs and we’d like to have an even distribution."
Blog: What we've actually been doing April 2008 http://blog.galaxyzoo.org/2008/04/30/what-weve-actually-been-doing/ "we have a ring/spiral galaxy near an smaller and more distant elliptical "
Publication: The Ultraviolet Attenuation Law in Backlit Spiral Galaxies William C. Keel, Anna M. Manning, Benne W. Holwerda, Chris J. Lintott, Kevin Schawinski Astronomical Journal (in press Jan 2014) http://arxiv.org/abs/1401.0773 Uses the light of an elliptical galaxy shining through the arms of a spiral galaxy to explore the distribution of dust in the spiral galaxy.
Publication: Galaxy Zoo: A Catalog of Overlapping Galaxy Pairs for Dust Studies.
Keel, William C.; Manning, Anna M.; Holwerda, Benne W.; Mezzoprete, Massimo; Lintott, Chris J.; Schawinski, Kevin; Gay, Pamela; Masters, Karen L. Publications of the Astronomical Society of the Pacific, Volume 125, issue 923, pp.2-16 http://adsabs.harvard.edu/abs/2013PASP..125....2K A list of 1990 galaxy pairs, where distant galaxy shines through a nearby galaxy, can use it to measure the amount of reddening due to dust.Wednesday, 12th December, 2012: Overlap? Merger? Polar Ring? None of the Above?? by JeanTate http://www.galaxyzooforum.org/index.php?topic=280552.0 two edgeon galaxies are overlapping
Forum: Wednesday, 5th December, 2012: Overlaps, Past, Present, and Future by JeanTate http://www.galaxyzooforum.org/index.php?topic=280542.0 "Yes, we're still collecting!...So, as you continue to classify galaxies in GZ4, whenever you come across an overlap, click on "Yes" when you get to the question "Would you like to discuss this object?", and use the hashtag #overlap."
Forum: Monday 26th September 2011 UGC 03141 GPair DR8 by Alice UGC3141 http://www.galaxyzooforum.org/index.php?topic=279487.0 Liz found, and Dr Keel used for research
Forum: Saturday, 14th January, 2012: A Toast to the Overlap Zooites by JeanTate http://www.galaxyzooforum.org/index.php?topic=279829.0 "NGC3314/Bill Keel announced the completion of the overlapping galaxy pairs" http://www.galaxyzooforum.org/index.php?topic=278849.0 The author list includes Half65 under his secret daytime identity, which is only fair because, in addition to contributing 30% of all entries in the overlap thread, he did a lot of work on scripts to retrieve and format data from the SDSS archive.
Forum: Friday, January 6th, 2012: Unprecedented News! by Zeus2007 http://www.galaxyzooforum.org/index.php?topic=279798.0 Two overlapping #edgeon galaxies
zCOSMOS 830507 z=0.1264
587727944034091212 edge-on
paired with
zCOSMOS 830514 z=0.1273
587727944034091213 SDSS J100123.20+022414.9
COSMOS (combined)ACS/WFC F814W hlsp_cosmos_hst_acs-wfc_mosaic_f814wPosted
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Budgieye
moderator
2.4 Ring galaxy (empty in the middle) collisional ring galaxy - created by collision that removed the inside of the galaxy) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Hashtag: #ring ring
Talk: Collisional Ring Galaxies http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0000zwc?page=1&comment_id=542ef70bc67bee0900000072
Arp146 ring galaxyhttp://talk.galaxyzoo.org/#/subjects/AGZ0005r3k
http://talk.galaxyzoo.org/#/subjects/AGZ0005r3l
https://talk.galaxyzoo.org/#/subjects/AGZ0005r3l
Arp 147 Arp147http://hubblesite.org/newscenter/archive/releases/2008/37/image/a/format/small_web/
http://talk.galaxyzoo.org/#/subjects/AGZ0002bnf
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237665567156797893
Talk: Collisional Ring Galaxies http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0000zwc?page=6&comment_id=56ce65c4327fbb603f0003e6
Blog: Happy Valentine's Day! February 14, 2010 by Georgia Barrie http://blog.galaxyzoo.org/2010/02/14/happyvalentinesday/ " working on a research project with Chris Lintott, attempting to explain the formation of the elusive ring galaxies. Thanks to the work of Galaxy Zoo users, I am now in possession of the biggest catalogue of ring galaxies in the World. Having looked through each of the three and a half thousand galaxies classified as rings by Galaxy Zoo users, "
Blog: A Valentine's Day Challenge February 14, 2010 by John http://blog.galaxyzoo.org/2010/02/14/a-valentines-day-challenge/
"This is the first example that I have ever seen of two ring galaxies created in the same collision. It seems like creating this type of system should be possible, but we aren’t sure how to create models that closely reproduce this beautiful system. As always, we need your help!"Blog: Ring of the Week: Arp 147 February 28, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/02/28/rotw-arp147/ " formed when a smaller galaxy hits bull’s-eye into the centre of a larger disk galaxy. The impact creates a density wave, throwing m..atter out into a ring shape. With the help of the Zooites I’ve found just 12 Smoke Rings in the Galaxy Zoo and so these amazing objects are very rare indeed. Arp147
SDSS and HST of Mayall's ObjectBlog: Ring of the Week: Mayall's Object http://blog.galaxyzoo.org/2010/02/21/mayalls-object/ "Thanks to the work of Zoo members I have so far found about 125 Collisional Rings in the Galaxy Zoo (and still searching…!) so we can safely say that Collisional Rings are quite a rare phenomenon."
Forum: IC 0298 ARP 147 VV 787 Left: S0(r) Ring galaxy
http://www.galaxyzooforum.org/index.php?topic=281588.msg661519#msg661519 IC0298 ARP147 VV787 #ringForum OOTD: Thursday 3rd March 2011: Smoke Rings by Alice http://www.galaxyzooforum.org/index.php?topic=278987.0
Forum: "Smoke Rings" - ring galaxies with no nucleus by Alice http://www.galaxyzooforum.org/index.php?topic=278988.0
Forum: PGC 509, ring galaxy http://www.galaxyzooforum.org/index.php?topic=275042.msg378682#msg378682
SDSS J100140.57+014409.9 http://zoo3.galaxyzoo.org/examine/AHZ20002jw
COSMOS J100140.56+014410.2 COSMOS 0451077 listed as VisS PGG2009 J150.41903+01.73605 (Galaxy) KSL2010 1445 (Infrared Source).
Forum:Friday September 28th 2012: AHZ20002jw - a unique cosmic work in progress by PeterD http://www.galaxyzooforum.org/index.php?topic=280430.0 http://zoo-hst.s3.amazonaws.com/20008030.jpg
ring https://talk.galaxyzoo.org/#/subjects/AGZ000dcyohttp://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237654669202358504
Talk: RA: 158.38670 DEC: -0.68603 http://zooniverse-static.s3.amazonaws.com/www.galaxyzoo.org/subjects/standard/56f3df5d5925d90043000007.jpeg
RA: 182.48981 DEC: 0.92073 https://talk.galaxyzoo.org/#/subjects/AGZ000dzxd
Talk: Unusual pair of galaxies, one is a ring https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0002c8c
Talk; O According to NED Notes a collisional-ring galaxy with apparent double nucleus, one of the two being the intruder galaxy by Ghost_Sheep_SWR https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ100685q?page=1&comment_id=58944b937d25c76ce000001f
http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=188.0216&dec=66.40668
https://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0002dnuhttps://talk.galaxyzoo.org/#/subjects/AGZ000daig
https://talk.galaxyzoo.org/#/subjects/AGZ000drfe
https://talk.galaxyzoo.org/#/subjects/AGZ000d1sg http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=37.630219258633694&dec=-4.215182408867598
Posted by y alex_nnn 1 https://talk.galaxyzoo.org/#/subjects/AGZ000dv2q http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=174.86523744&dec=-2.76505806 SDSS J113927.64-024554.3
Blue ring https://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0002s48?page=1&comment_id=5a0bea4fb9419004f3000119 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237650369944092956
https://talk.galaxyzoo.org/#/subjects/AGZ000ec3g http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=217.4402873&dec=-0.72426196
![https://upload.wikimedia.org/wikipedia/commons/4/4c/NGC_4650A_I_HST2002.jpg]NGC 4650A(https://upload.wikimedia.org/wikipedia/commons/4/4c/NGC_4650A_I_HST2002.jpg) NGC 4650A NGC4650
http://www.legacysurvey.org//viewer/jpeg-cutout?ra=177.8018&dec=-3.0788&zoom=15&layer=decals-dr5
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/607864
http://www.galaxyzooforum.org/index.php?topic=10160.msg289572#msg289572
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/615064
http://www.legacysurvey.org/viewer?ra=324.677526661022&dec=-7.227310347289688&zoom=15&layer=decals-dr5
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237652935646904772
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/820084
https://www.zooniverse.org/projects/aprajita/space-warps-hsc/talk/1673/627694?comment=1474470
object_id ra dec photoz_best gcmodel_mag rcmodel_mag icmodel_mag zcmodel_mag
42292169301589891 217.773854 0.251659 1.0984 26.78 24.72 23.48 22.54
42292169301589893 217.774507 0.251385 1.0392 24.11 23.92
http://www.legacysurvey.org/viewer?ra=174.2519&dec=21.5365&zoom=16&layer=decals-dr7
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1034854
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1076589?comment=1767652&page=1
http://www.legacysurvey.org/viewer?ra=236.7750&dec=8.8614&zoom=15&layer=dr8
http://skyserver.sdss.org/dr14/SkyServerWS/ImgCutout/getjpeg?TaskName=Skyserver.Explore.Image&ra=143.570780020433&dec=8.71104679694754&scale=0.2&width=200&height=200&opt=G
http://www.legacysurvey.org/viewer?ra=143.57188458655585&dec=8.709614598388939&zoom=15&layer=decals-dr5
http://www.legacysurvey.org/viewer?ra=15.0401&dec=-1.2538&layer=dr8&zoom=15
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1095294?comment=1795744&page=1Forum: "Smoke Rings" - ring galaxies with no nucleus by Alice March 03, 2011, http://www.galaxyzooforum.org/index.php?topic=278988.0
Clump Scout
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/1159764?comment=1891976
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237660413726163112
143.570780020, 8.711046797
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1160297?comment=1893544&page=1
http://www.legacysurvey.org/viewer?ra=137.1543&dec=1.7907&layer=hsc2&zoom=16
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/35622423
http://www.legacysurvey.org/viewer/cutout.jpg?ra=173.6642&dec=1.7237&layer=decals-dr5&pixscale=0.06
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237651752933785800
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1218430?comment=1982749Posted
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Budgieye
moderator
2.5 ringed galaxy (ring around a galaxy) and pseudo-ringed galaxy, created by resonance created by bars https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
see also 1.7 Barred Spiral http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7990d43f77b9e000f75
Hashtag #ringed ringed
Hoag's ObjectHoag's object from http://apod.nasa.gov/apod/ap040815.html with another ringed galaxy inside
Forum: Ring Galaxy thread (most are actually ringed galaxies) http://www.galaxyzooforum.org/index.php?topic=90.0
Forum OOTD: Wednesday 7th Jan 2009: Ringed and Pseudo Ringed by waveney http://www.galaxyzooforum.org/index.php?topic=273564.msg247364#msg247364
https://blog.galaxyzoo.org/2017/07/25/new-papers-investigate-galactic-rings-in-galaxy-zoo/
Reference: Galactic Rings Revisited. I. CVRHS Classifications of 3962
Ringed Galaxies from the Galaxy Zoo 2 Database
circular ringThe first and most common category ... is the circular ring galaxy. These have circular rings and nuclei. Around 54% of the galaxies were of this type.
elliptical ringThe second category is the elliptical ring galaxies, these have elliptical nuclei and most often, elliptical rings as well. About 24% of the galaxies were of this type.
multiple ringThe third category is the multiple ringed galaxy, where the central nucleus is surrounded by several concentric rings. About 14% of the galaxies were of this type.
off centeredThe final type is the off centered nucleus. Similar to the first two categories but the nucleus is not at the center of the galaxy. This was the rarest category it was made up of only 6% of all the galaxies.
bizarre[ Zooites have dubbed it "The Scream"
Heart GalaxyBlog: Preethi's Cross-Eyed Galaxy August 26, 2010 http://blog.galaxyzoo.org/2010/08/26/preethis-cross-eyed-galaxy/
Blog: Classifying Ring Galaxies by Ciaran O’Hare June 2008 http://blog.galaxyzoo.org/2008/06/13/classifying-ring-galaxies/
"I also looked at the spectra of all the galaxies and found that the large majority of them generally fell with the redder galaxies, with only 1 in 8 having bluer spectra. Also, by measuring the radius of the ring we were able to find an age of the galaxy by taking the expansion rate from the cartwheel galaxy"Forum: Ringed and Pseudoringed Galaxies EricFDiaz http://www.galaxyzooforum.org/index.php?topic=10635.0 The Kinematics and Dynamics of Galactic Rings, The Physics of Resonance
Forum: Wednesday, 27th February, 2013: Ringed Galaxies, So Lovely, So Lonely byJeanTate http://www.galaxyzooforum.org/index.php?topic=280657.0
Talk: Spiral arms outside ring, though it might be a nuclear ring, but they are usually blue https://talk.galaxyzoo.org/#/subjects/AGZ000c2pr DECaLS
RA: 145.37626 DEC: 26.12012http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=227.35309720034417&dec=-10.695244317449992
Lord of the Rings. posted by Gingerion https://talk.galaxyzoo.org/#/subjects/AGZ000cyih
Talk: ringed galaxy https://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0002bwh?page=1&comment_id=588d351d7d25c72
563000012MRK 0519
RA: 31.07907 DEC: -8.73532 NGC 0809 NGC0809
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Budgieye
moderator
2.6 Polar rings, created by galaxy collisions https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Talk collection: #polar Curator: don't know?
Polar Rings (#polar) - CGZL000047
A polar-ring galaxy is a type of galaxy in which an outer ring of gas and stars rotates over the poles of the galaxy.These polar rings are thought to form when two galaxies gravitationally interact with each other. One possibility is that a material is tidally stripped from a passing galaxy to produce the polar ring seen in the polar-ring galaxy. The other possibility is that a smaller galaxy collides orthogonally with the plane of rotation of the larger galaxy, with the smaller galaxy effectively forming the polar-ring structure.
Forum: The Possible Polar Ring Thread http://www.galaxyzooforum.org/index.php?topic=7711.0 The Zooites have done fantastically well at finding Polar Rings and you can see all of their incredible finds on the Possible Polar Ring thread on the Galaxy Zoo forum.
Forum: Wednesday, 12th October, 2011: Kinematically Confirmed Polar Ring Galaxies by Jean Tate http://www.galaxyzooforum.org/index.php?topic=279519.msg564209#msg564209
Arp 87 in Galaxy Zoo and HubbleBlog: Ring of the Week: Arp 87 [polar ring] March 7, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/03/07/rotw-arp87/ "We can clearly see the galaxy on the left gravitationally stripping away the stars and gas from the spiral galaxy on the right."
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237679438273183783
http://galaxyzooblog.files.wordpress.com/2013/05/splinter_galaxy_martinez_delgado.jpg?w=479
http://talk.galaxyzoo.org/#/subjects/AGZ0002kw7 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237665128549384425 in the polar ring catolog PRC D-25
http://talk.galaxyzoo.org/#/subjects/AGZ000atcu
Publication: Polar ring galaxies in the Galaxy Zoo by Finkelman, Ido; Funes, José G.; Brosch, Noah MNRAS http://adsabs.harvard.edu/abs/2012MNRAS.422.2386F 16 candidate polar-ring galaxies (PRGs)Forum: Monday 16th January 2012 by Alice http://www.galaxyzooforum.org/index.php?topic=279835.0 UGC 2495 Galaxy with a long trailing arm.
Forum: Saturday the 29th of December 2012 polar-ring galaxy NGC 660 NGC660 by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=280571.0 How did it form, and why is there no star formation?
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/613248
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237651505956061389Posted
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Budgieye
moderator
2.7 gas outfall / infall M82 look alikes https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Forum OOTD Wednesday, 9 July, 2014: Colors, Spray by Jean Tate http://www.galaxyzooforum.org/index.php?topic=281961.msg662184#msg662184
Forum: Sunday, 24 July 2011: Arp 220: Dust and Molecular Gas by EigenState http://www.galaxyzooforum.org/index.php?topic=279339.0 " bright central region is a glowing cloud of exceedingly hot (» 106 K) gas rushing out of the galaxy, driven by a "superwind" presumed to result from explosive activity generated by the formation of hundreds of millions of new stars...spectrum of Arp 220 [2] observed over the range of 200 to 700 μm (1500 to 427 GHz) shows strong emission features from pure rotational transitions of CO and H2O; high rotational transitions of HCN in absorption; rotational transitions of the rare molecules OH+, H2O+, and HF in absorption; as well as electric-quadrupole allowed, fine structure transitions within the ground electronic states of the atomic species [CI] and [NII]"
Forum: Saturday the 25th of August 2012 Star Formation Feedback.by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=280355.0 "R. Amorin's latest paper on the complex movement of gases within the Green Peas (kinematics)"
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Budgieye
moderator
2.8 Galaxy Mergers and Flybys, Merger Zoo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Hashtag: #merger merger #gpair gpair #disturbed disturbed
Forum: Vorontsov-Velyaminov Interacting Galaxies http://www.galaxyzooforum.org/index.php?topic=279218.0
Forum: Biggest cosmic trainwrecks - Mergers http://www.galaxyzooforum.org/index.php?topic=567.0
Talk: tidal trails, tidal debris in DECaLS by Sugata_Kaviraj http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001kaa?page=2
" the features we are after (tidal tails, shells, dust lanes etc.) are typical signatures of mergers (we see these types of features routinely in high resolution simulations of mergers for example) and are (very) unlikely to be produced by anything else. Some examples of these features were given in Kyle's blog post: http://blog.galaxyzoo.org/2015/11/05/searching-for-tidal-debris-in-decals-images/?shareadraft=563a9a6eced7d )."Blog: Merger Zoo June 15, 2012 by jfwallin http://blog.galaxyzoo.org/2012/06/15/merger-zoo/ "Merger Zoo has come to a close. Since the project started, we have had over 27,000 volunteers contributed their time supporting this project. Volunteers have reviewed over 3 million simulations. John and Anthony, The Merger Zoo Team
Blog: Seeing mergers in a different light January 2, 2012 by Alfredo http://blog.galaxyzoo.org/2012/01/02/seeing-mergers-in-a-different-light/"In the past, a huge number of papers have shown that galaxies which were very bright in the infrared ( called LIRGs – Luminous infrared galaxies, U(ltra)LIRGs and H(yper)LIRGs) were mostly mergers or post-mergers. We are going in the opposite direction: since we have a strong visually selected merger catalogue, thanks to your hard work, we can now see what’s the real connection between mergers and warm galaxies."
Blog: Galaxy overlaps at the AAS [Austin, Texas] January 11, 2012 http://blog.galaxyzoo.org/2012/01/11/galaxy-overlaps-at-the-aas/ .In other news, a Canadian astronomer working with NED found a new use for the overlap catalog including the “reject” list – to distinguish galaxies in pairs which are seen moving together or apart, since we often have both redshifts and from the dust we know which one is in front."
Blog: The infrared properties of mergers January 27, 2012
by Alfredo Carpineti http://blog.galaxyzoo.org/2012/01/27/5372/ Using infrared radiation we can extrapolate the number of stars produced by a galaxy every year, namely the star formation rate(SFR)...we don’t find any correlation between SFR and mass ratio, while we see a clear trend with the total mass...star formation rate seems independent of environment. "
Blog: Galaxy Zoo Multi Mergers Dec 2010 http://blog.galaxyzoo.org/2010/12/22/galaxy-zoo-multi-mergers/ when 3 galaxies collide: a list for publication with 39 examples "We therefore compared these merger fractions and galaxy properties to a large and well-known simulation called the Millennium Run. This is a cosmic scale simulation of Dark Matter" "Simulation did rather well – it predicted the relative abundance of multi-mergers to within a few percent and it predicted that galaxies in these systems should have properties more like a typical elliptical rather than a typical spiral. "
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The SPMs are part of a sample classified by Galaxy Zoo as post-mergers. We looked at this sample again and we picked the ones which look mostly bulge dominated, a key feature of galaxies that are likely to be precursors of elliptical galaxies.
We define post-mergers as single-core galaxies with tidal feature or disruption that can only be explained as merger related.Blog: Galaxy Crash Debris: Post-merger Spherodials paper now out! November 29, 2011 by Alfredo Carpineti http://blog.galaxyzoo.org/2011/11/29/galaxy-crash-debris-post-merger-spherodials-paper-now-out/ "We are interested in post-mergers because we want to study in the hierarchical model of galaxy evolution and understanding the evolution of galaxies along a merger sequence is necessary to achieve this. We define post-mergers as single-core galaxies with tidal feature or disruption that can only be explained as merger related...55% of the SPMs are products of major mergers in which at least one of the progenitors is a late-type galaxy."
violin clef or integral galaxyBlog: Update on the "Violin Clef" merger: redshifts and Merger Zoo by Kyle Willett October 2011 http://blog.galaxyzoo.org/2011/10/24/update-on-the-violin-clef-merger-redshifts-and-merger-zoo/ "...Galaxy Zoo contributor Bruno discovered an example of a spectacular merger in the Sloan DR8 data that looked like a triple, or possibly quadruple system. It’s been informally dubbed the “Violin Clef” or the “Integral” based on its shape..all four galaxies and the tidal tails in this system are red."
simulate violin clef galaxy in Merger Zoo.Blog: Citizen Science in Action: the "Violin Clef" merger September 13, 2011 http://blog.galaxyzoo.org/2011/09/13/citizen-science-in-action-the-violin-clef-merger/ "long-time forum member Bruno posted a curious galaxy as his choice for “Object of the Day” for September 9th."
Blog: Taffy Bridges by Lightbulb500 and Zooniverse February 2011 http://blog.galaxyzoo.org/2011/02/25/taffy-bridges/ "There is a bridge of hydrogen gas linking the two galaxies [...] green tint in between the galaxies would be from H-alpha emissions"
favourite image of 2010Blog: Galaxy Zoo Image of the Year Dec 2010 http://blog.galaxyzoo.org/2010/12/19/galaxy-zoo-image-of-the-year/ "The winner was the stunning blue spiral, merging with a yellow galaxy so torn apart by gravitational forces that it would be hard to classify!"
Blog: Spheroidal Post Merger Systems at the AAS June 6, 2011 http://blog.galaxyzoo.org/2011/06/06/spheroidal-post-mergers-aas/ "Alfredo Carpineti from UCL, who talked about his work on the properties of spheroidal post-merger systems selected with the help of the Galaxy Zoo merger classifications,...a single remnant is in the final stages of relaxation after the collision and shows evidence for a dominant bulge, making them plausible progenitors of early-type galaxies."
Blog: Mergers Author Poster Dec 2010 http://blog.galaxyzoo.org/2010/12/23/mergers-author-poster/ A poster of a merging galaxy with the names of every citizen scientist who helped with Merger Zoo.
Blog; Post-starburst galaxies paper submitted! October 6, 2010 by Ivy Wong. http://blog.galaxyzoo.org/2010/10/06/post-starburst-galaxies-paper-submitted/ "nearby galaxies which appear to be transitioning from being star-forming to passively-evolving galaxies. In particular, I looked at a sample of post-starburst galaxies (PSG). These PSG had a recent burst of star formation but they have since ceased forming stars...The majority of PSG are low-mass but most of their stellar distribution already resemble those of ellipticals. However, they are still somewhat “green” and will likely turn red once the starlight of the youngest population of stars start to fade."
Blog: Chandra Program to study Galaxy Zoo Mergers approved July 16, 2010 http://blog.galaxyzoo.org/2010/07/16/chandra-program-to-study-galaxy-zoo-mergers-approved/ " These targets are a set of beautiful merging galaxies discovered by YOU as part of Galaxy Zoo 1 and the Merger Hunt. The 12 approved targets are here:...These 12 mergers are all very pretty, but they have something else in common: they all host active galactic nuclei (AGN) – feeding supermassive black holes at their centers. X-rays are great for finding such hungry black holes, but we already know that all 12 of these mergers are AGN, so why observe them again? We’re looking for a mythical rare beast: the binary AGN!"
587741708326863123Blog: Ring of the Week: The Eagle Has Landed March 14, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/03/14/rotw-the-eagle-has-landed/ It could be that the “Eagle” is a polar ring (see last week’s post), where stars have been gravitationally stripped from the larger ring galaxy to rotate around the poles of the smaller galaxy. Or perhaps this is a collisional ring system, the “Eagle” having crashed through the centre of the larger galaxy to create the blue ring of stars that we see on the bottom right of the image.
!
Blog: A Valentine's Day Challenge February 14, 2010 by John http://blog.galaxyzoo.org/2010/02/14/a-valentines-day-challenge/
"This is the first example that I have ever seen of two ring galaxies created in the same collision. It seems like creating this type of system should be possible, but we aren’t sure how to create models that closely reproduce this beautiful system. As always, we need your help!"Blog: Mergers Update November 24, 2009 by John Wallin http://blog.galaxyzoo.org/2009/11/24/mergers-update-2/ The new system has a broken ring and a nearby companion.
Blog: Galaxy Zoo: Mergers – A personal perspective November 26, 2009 by John http://blog.galaxyzoo.org/2009/11/26/galaxy-zoo-mergers-a-personal-perspective/ "The idea of using volunteers to help us happened a few years ago. It was crazy and impractical to imagine volunteers helping out with a project like this. Even so, a group of us proposed to do. ..With your help, we can create the models we need to understand the histories of hundreds of galaxy collisions. These models will be more reliable than any a single scientist could create. ..by carefully analyzing your inputs, we eventually hope to train the computers to do thousands of more models. This kind of man/machine partnership is being planned for a number of future data projects, where computers need help learning how to be scientists. ...However, in return, we will also never make you do busy work that a machine can do."
Blog: Galaxy Zoo: Understanding Cosmic Mergers November 24, 2009 by John Wallin http://blog.galaxyzoo.org/2009/11/24/galaxy-zoo-understanding-cosmic-mergers/ "In Mergers, we are working to understand the cosmic collisions that lead to galaxy mergers. Every day we will have a new target galaxy that we need your help to model. ...the more we can narrow down the input parameters that caused these systems to form. You can be the most helpful by looking at a lot of images and then select the best of the best through the evaluate mode of the applet. This will happen automatically when you have selected eight possible merger images. My graduate student Anthony Holincheck and I have been working on this project for a long time..."
Blog: Galaxy Zoo featured on Astronomy Picture of the Day! APOD October 26, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/10/26/galaxy-zoo-featured-on-astronomy-picture-of-the-day/ http://apod.nasa.gov/apod/ap091026.html " a group of vibrant mergers found by Zooites demonstrates the diverse zoo-like nature of many interacting galaxies in the universe."
Blog: Merger Papers Accepted for Publication in MNRAS Sept 2009 http://blog.galaxyzoo.org/2009/09/28/merger-papers-accepted-for-publication-in-mnras/
Blog: Galaxy Zoo at Galaxy Wars July 2009 http://blog.galaxyzoo.org/2009/07/23/galaxy-zoo-at-galaxy-wars/ Daniel Darg had a poster presentation on the Zoo sample of merging galaxies and their statistical properties.....John Wallin (from George Mason University) gave a talk (and an additional poster presentation, seen here) on the developing Zoo offshoot to work out what kinds of galaxy collision produce the distortions and tails (or star streams)
Blog Live from the AAS International Year of Astronomy Press Conference, part 2 June 2009 http://blog.galaxyzoo.org/2009/06/09/live-from-the-aas-international-year-of-astronomy-press-conference-part-2/ 1 million galaxies in 100 hours. We thought this was an ambitious goal, but you did 2.6 million!..“Old Galaxies Spin in Sync” discovery that Raul Jimenez posted . 1-3% of galaxies are undergoing major mergers
Blog: Mergers Paper submitted by Dan Darg December 2008 http://blog.galaxyzoo.org/2008/12/12/mergers-paper-submitted/ "We are confident Galaxy Zoo is the largest visually examined parent sample from which any merger sample has ever been derived and we were able to put together ~3000 merging systems. By contrast, a decade or so ago, a sample with 20 mergers would have been considered a `large’ sample. ... we found a lot of very “blue” looking galaxies in mergers. This can be interpreted to mean that mergers involve (or bring about) new star formation...we found more spirals in mergers than ellipticals compared with the global population.. merging galaxies tended to occupy slightly denser environments and, ellipticals in particular in mergers, seemed to be more massive than their control counterparts.. spectra ..Many thanks to all you all for pressing that “merger” button! Lots of interesting science is coming out of it!"
Blog: Observing, Spanish style November 2008 http://blog.galaxyzoo.org/2008/11/12/observing-spanish-style/ he giant 30m radio dish of the IRAM observatory above Granada for not one, but two Zoo projects mergers and black holes in ellipticals. looking for the signature of carbon monoxide (CO) in the galaxies.
Blog: Hunting Programs for all by waveney October 2008 http://blog.galaxyzoo.org/2008/10/27/351/ wrote computer code for 3 Hunts, Mergers, Peas and Irregulars
nice systemBlog: A false start…December 2008 http://blog.galaxyzoo.org/2008/12/31/a-false-start/ Our first candidate galaxy is this rather nice system
Blog: Hola from Pico Veleta December 2008 http://blog.galaxyzoo.org/2008/12/30/hola-from-pico-veleta/ IRAM SEO Services UK millimeter radio telescope. We’ll be looking at merging galaxies selected from the Galaxy Zoo catalogues, and then at some of the nearest blue ellipticals.
Blog: Merger hunting one month on by waveney May 2008 http://blog.galaxyzoo.org/2008/05/17/merger-hunting-one-month-in/
"offered to provide a web page to do the merger hunting.. wrote SQL..the Merger hunters climbed from 200 to 700, and 20,000 images were seen.." the sever didn't melt
APOD website: Galaxy Evolution Tracking Animation gravity causes clumps of matter to form into galaxies which immediately begin falling toward each other
Video Credit: Donna Cox (AVL NCSA/U. Illinois) et al., NASA's GSFC, AVL, NCSA
Explanation: How did the universe evolve from such a smooth beginning? To help understand, computational cosmologists and NASA produced the featured time-lapse animated video depicting a computer simulation of part of the universe. The 100-million light-year simulation starts about 20 million years after the Big Bang and runs until the present. After a smooth beginning, gravity causes clumps of matter to form into galaxies which immediately begin falling toward each other. Soon, many of them condense into long filaments while others violently merge into a huge and hot cluster of galaxies. Investigating of potential universe attributes in simulations like this have helped shape the engineering design the James Webb Space Telescope, currently scheduled for launch in late 2018.
Publication: Galaxy Zoo: Quantifying Morphological Indicators of Galaxy Interaction Kevin R. V. Casteels, Steven P. Bamford, Ramin A. Skibba, Karen L. Masters, Chris J. Lintott, William C. Keel, Kevin Schawinski, Robert C. Nichol, Arfon M. Smith MNRAS http://arxiv.org/abs/1206.5020 Indicators of interaction are loosely wound or disturbed spiral arms, star formation, tidal tails, but fewer bars
Publication: Spheroidal post-mergers in the local Universe by Carpineti, Alfredo; Kaviraj, Sugata; Darg, Daniel; Lintott, Chris; Schawinski, Kevin; Shabala, Stanislav MNRAS http://adsabs.harvard.edu/abs/2012MNRAS.420.2139C AGN, dominant bulge
Publication: Chandra Observations of Galaxy Zoo Mergers: Frequency of Binary Active Nuclei in Massive Mergers by Teng, Stacy H.; Schawinski, Kevin; Urry, C. Megan; Darg, Dan W.; Kaviraj, Sugata; Oh, Kyuseok; Bonning, Erin W.; Cardamone, Carolin N.; Keel, William C.; Lintott, Chris J.; Simmons, Brooke D.; Treister, Ezequiel in ApJ http://adsabs.harvard.edu/abs/2012ApJ...753..165T observing X-ray emission of 12 mergers of massive galaxies show little evidence of binary nuclei
Publication: Galaxy Zoo: multimergers and the Millennium Simulation by Darg, D. W.; Kaviraj, S.; Lintott, C. J.; Schawinski, K.; Silk, J.; Lynn, S.; Bamford, S.; Nichol, R. C. MNRAS http://adsabs.harvard.edu/abs/2011MNRAS.416.1745D a catalogue of 39 multiple mergers, ellipticals are found more frequently in these mergers with 3 galaxies.
Publication: Tidal dwarf galaxies in the nearby Universe by Kaviraj, Sugata; Darg, Daniel; Lintott, Chris; Schawinski, Kevin; Silk, Joseph in http://adsabs.harvard.edu/abs/2012MNRAS.419...70K Tidal dwarf galaxies are formed from stars and gas pulled out of a parent galaxy by tidal interaction. There is some new star formation, making the dwarf galaxies slightly bluer.
Publication Galaxy Zoo: the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity by Darg, D. W.; Kaviraj, S.; Lintott, C. J.; Schawinski, K.; Sarzi, M.; Bamford, S.; Silk, J.; Andreescu, D.; Murray, P.; Nichol, R. C.; Raddick, M. J.; Slosar, A.; Szalay, A. S.; Thomas, D.; Vandenberg, J. http://adsabs.harvard.edu/abs/2010MNRAS.401.1552D a sample of 3003 pairs of merging galaxies, merging is not the main cause of spiral production
Publication: Galaxy Zoo: the fraction of merging galaxies in the SDSS and their morphologies by Darg, D. W.; Kaviraj, S.; Lintott, C. J.; Schawinski, K.; Sarzi, M.; Bamford, S.; Silk, J.; Proctor, R.; Andreescu, D.; Murray, P.; Nichol, R. C.; Raddick, M. J.; Slosar, A.; Szalay, A. S.; Thomas, D.; Vandenberg, J. http://adsabs.harvard.edu/abs/2010MNRAS.401.1043D There seem to be more spirals created by collisions, but it may be because spirals are easier to identify.
Forum: Re: Wednesday 8th April 2009 by Alice http://www.galaxyzooforum.org/index.php?topic=274845.0 overlap in SDSS, but looks like a merger in Hubble image.
http://talk.galaxyzoo.org/#/subjects/AGZ0003ak9Forum: Sunday 30th September 2012: NGC 6745 by Alice http://www.galaxyzooforum.org/index.php?topic=280440.0 Hubble images, APOD and in Talk http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ1006a0g NGC6745
Post merger spheroids
http://icg.port.ac.uk/~mastersk/GalaxyZoo/Carpineti_AAS218talk.pdfBlog: June 6, 2011 by The Zooniverse https://blog.galaxyzoo.org/2011/06/06/spheroidal-post-mergers-aas/
Spheroidal Post Merger Systems at the AAS spheroidal ‘post-mergers’, where a single remnant is in the final stages of relaxation after the collision and shows evidence for a dominant bulge, making them plausible progenitors of early-type galaxies.Posted
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Budgieye
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2.9 Galaxy collisions and shell galaxies created by high speed collsions https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Forum: Shell ellipticals - created by high speed collisions http://www.galaxyzooforum.org/index.php?topic=278085.0
shell created by high speed collision, Hubble imageEGSD2 J14197.8+524952 http://tkserver.keck.hawaii.edu/egs/dataAccess/notebook/egs_notebook.php?serial=13004280
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237661416602599600
http://www.youtube.com/watch?v=Su4gI2CApcQ
http://talk.galaxyzoo.org/#/subjects/AGZ000aq3v
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/657811
SDSS J004628.84+000621.6
http://www.legacysurvey.org/viewer?ra=11.620216840206103&dec=0.1060079901841157&zoom=15&layer=decals-dr5
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/948131?comment=1565453&page=1
http://www.legacysurvey.org/viewer?ra=182.67537959141728&dec=10.52506360247094&zoom=15&layer=decals-dr5
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237671128057315471Posted
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Budgieye
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2.10 double nuclei and shell galaxies created by two revolving nuclei https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2
Talk: NGC 7600 - A shell galaxy http://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ000194o with detailed photo and link to simulation
http://apod.nasa.gov/apod/ap110226.html #Arp #Arp227
NGC 0474
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237678620110946331 #NGC #NGC0474
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237657608573943931
Forum thread: VCC catalogue http://www.galaxyzooforum.org/index.php?topic=279880.0 the Virgo Cluster Catalogue.
Forum thread : Shell Galaxy Thread http://www.galaxyzooforum.org/index.php?topic=278871.0
Forum: Dual AGN candidates by Zutopian http://www.galaxyzooforum.org/index.php?topic=278984.msg537086#msg537086
Blog: Chandra Program to study Galaxy Zoo Mergers approved July 16, 2010 http://blog.galaxyzoo.org/2010/07/16/chandra-program-to-study-galaxy-zoo-mergers-approved/ " These targets are a set of beautiful merging galaxies discovered by YOU as part of Galaxy Zoo 1 and the Merger Hunt. The 12 approved targets are here:...These 12 mergers are all very pretty, but they have something else in common: they all host active galactic nuclei (AGN) – feeding supermassive black holes at their centers. X-rays are great for finding such hungry black holes, but we already know that all 12 of these mergers are AGN, so why observe them again? We’re looking for a mythical rare beast: the binary AGN!"
Publication: Chandra Observations of Galaxy Zoo Mergers: Frequency of Binary Active Nuclei in Massive Mergers by Teng, Stacy H.; Schawinski, Kevin; Urry, C. Megan; Darg, Dan W.; Kaviraj, Sugata; Oh, Kyuseok; Bonning, Erin W.; Cardamone, Carolin N.; Keel, William C.; Lintott, Chris J.; Simmons, Brooke D.; Treister, Ezequiel in ApJ http://adsabs.harvard.edu/abs/2012ApJ...753..165T observing X-ray emission of 12 mergers of massive galaxies show little evidence of binary nuclei
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237678833760338046
https://talk.galaxyzoo.org/#/subjects/AGZ000c7xp http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=239.1087112012139&dec=5.052342101614471
Talk: Double Nucleus or Artifact? https://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0002oub?page=1&comment_id=59d1422fb9419039eb000200 Not in NED as a double nucleus
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Budgieye
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Index for Galaxy Zoo Talk: Active Galaxies, Black Holes, Gravitational Lenses https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
3.1 AGN (Active Galaxy Nucleus) 3.2 Quasars and Blazars 3.3 AGN-illuminated clouds, 3.4 Green Bean Galaxies 3.5 Hanny's Voorwerp 3.6 Relativistic jets 3.7 Black holes and SMBH (Super Massive Black Holes) 3.8 Green peas, compact starburst, Blue compact starburst , OIII objects 3.9 Gravitational lenses 3.10 Dark Matter Galaxy clusters CMB (Cosmic Microwave Background) Big Bang, Cosmology3.1 AGN (Active Galaxy Nucleus)
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
nearby AGN are green, more distant are magenta (red+blue or purple)Hashtag: #agn agn
http://galaxyzooblog.files.wordpress.com/2010/07/gz_merger_targets.jpg?w=479
Forum: AGC catalogue http://www.galaxyzooforum.org/index.php?topic=279945.0 AGC catalogue aka Arecibo General Catalog and ALFALFA ... 30,000 extragalactic HI line sources out to z~0.06, and its catalog will be especially useful in synergy with wide area surveys conducted at other wavelengths.
Blog: **Meeting the Astronomy World [AAS Austin, Texas] ** January 31, 2012 by Anna Han http://blog.galaxyzoo.org/2012/01/31/meeting-the-astronomy-world/ "I plan to continue searching for multiple AGN signatures in grism spectra of clumpy galaxies."
Blog: Simulated AGN: An Example March 3, 2011 by Brooke Simmons http://blog.galaxyzoo.org/2011/03/03/simulated-agn-an-example/ "here is an example of one of the 116 galaxies that we used to create the 1740 simulated AGN in the sample... its presence affect the classification of the underlying galaxy (if at all)?"
Blog: More on our fake AGN January 12, 2011 by Chris http://blog.galaxyzoo.org/2011/01/12/more-on-our-fake-agn/ £The aim is to test whether the presence of such an AGN affects the classification of the shape of the galaxy."
Blog: Motivation to Simulate AGN March 1, 2011 by Brooke Simmons http://blog.galaxyzoo.org/2011/03/01/motivation-to-simulate-agn/ " the presence of a central brightness from an AGN does affect the measured properties of the AGN host galaxy, when that central point source becomes too bright."
a few of the actual AGN from the HST imagesBlog: Simulating AGN March 1, 2011 http://blog.galaxyzoo.org/2011/03/01/simulating-agn/ "we were wondering how much a bright-ish point source might alter our ability to determine the host galaxies classifications. (Note: this is not an issue of the ability of Zooites to classify galaxies, but a question of when the brightness of the central AGN begins to hide or distort the visible features of the galaxy.)"
Blog: The Science Behind Classifying Simulated AGN by Brooke Simmons http://blog.galaxyzoo.org/2011/03/01/why-classify-simulated-agn/ "In the field of galaxy evolution, it’s now clear there is some sort of mechanism that affects both the evolution of galaxies and the growth of their central black holes together, but we don’t really understand what it is (or what they are) — yet. In terms of scale, it’s rather incredible that they are connected at all. We may call them supermassive black holes, but they’re generally a small percentage of the total galaxy mass, and they’re absolutely tiny when compared to the size of the galaxy...However, for all but very local galaxies, it’s very difficult to see a signal from a galaxy’s central SMBH amid all the stellar light from the galaxy. So, we turn to that subset of SMBHs that are actively accreting matter, which in turn heats up and discharges enormous amounts of energy as it falls into the gravitational potential of the black hole. Those, which we call active galactic nuclei (AGN), we can see much more easily, and out to very high redshift. ..the simulations are crucial because they both let us know the limits of our classification methods and, just as importantly, enable us to quantify precisely how confident we are that the classifications are accurate."
Blog: Chandra Program to study Galaxy Zoo Mergers approved July 16, 2010 http://blog.galaxyzoo.org/2010/07/16/chandra-program-to-study-galaxy-zoo-mergers-approved/ " These targets are a set of beautiful merging galaxies discovered by YOU as part of Galaxy Zoo 1 and the Merger Hunt. The 12 approved targets are here:...These 12 mergers are all very pretty, but they have something else in common: they all host active galactic nuclei (AGN) – feeding supermassive black holes at their centers. X-rays are great for finding such hungry black holes, but we already know that all 12 of these mergers are AGN, so why observe them again? We’re looking for a mythical rare beast: the binary AGN!"
Blog: How to find black holes? February 6, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/02/06/how-to-find-black-holes/ "The first step in trying to understand the connection between black holes and galaxies is finding them. But black holes are, well, black. In fact, you might say their blackness is their most defining feature.
So, how do you find them? It turns out that when they’re feeding on infalling gas and dust, a massive black hole can turn into the brightest object known in the whole universe – a quasar!
As the gas and dust falls towards the black hole, it settles into a disk around it, and as it moves in, friction in the disk heats up all the matter in it to such temperatures that it stats shining. In this way, black holes can be very bright, or quite dim, depending in part on how much matter they are munching on.
There are many ways to find feeding black holes and for the Galaxy Zoo paper on black hole growth, we used the emission lines that AGN (active galactic nuclei, or feeding black holes) cause when the light coming from the accretion disk shines on some other gas floating around in the host galaxy and makes that light in turn emit light with a very particular signature that we can detect by carefully analysing the spectra."Blog: Back at IRAM 30m…August 27, 2009 http://blog.galaxyzoo.org/2009/08/27/back-at-iram-30m/ "to test whether or not AGN (Active Galactic Nuclei) are responsible for dispelling gas and thus putting an end to star formation. "
Forum: Wednesday, 20th March, 2013: Radio-Loud NLSy1 Galaxies (Huh?!?) by JeanTate http://www.galaxyzooforum.org/index.php?topic=280695.0 " a radio-loud (it's a radio source; at this redshift - 0.58 - to be detected here on Earth it has to be an intense radio source"
Forum: Friday 14th (all right, Saturday 15th) January 2011: an experiment by Alice http://www.galaxyzooforum.org/index.php?topic=278785.0 How does the presence of an AGN affect classification of galaxies? fake AGN
Blog: More on our fake AGN by Chris Lintott Jan 2011 http://blog.galaxyzoo.org/2011/01/12/more-on-our-fake-agn/
Blog: Fake? AGN Galaxies! by Carie http://blog.galaxyzoo.org/2011/01/11/fake-agn-galaxies/
Forum: "Fake AGN" discussion here http://www.galaxyzooforum.org/index.php?topic=278768.0Posted
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Budgieye
moderator
3.2 Quasars and Blazars https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
This illustration shows features of an active galactic nucleus (AGN).
Credit: Aurore Simonnet, SSU NASA E/PO.Different types of quasars are not really different, it depends on the angle that we view them
PAGE 2 Galaxy Redshift Chart http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000ulp?page=2 has quasars from near to very far.
PAGE 3 Spectra guide for SDSS images in Galaxy Zoo Talk http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp?page=3&comment_id=53fef2ee3d5a77490c0001b6 has some spectra of quasars
SDSS website: Quasar spectra http://cas.sdss.org/dr7/en/proj/advanced/quasars/
SDSS website: Redshift Gallery: Quasars http://classic.sdss.org/gallery/gal_zqso.html Excellent selection of quasar spectra from z=0.1 to 5.0
Forum: Saturday, August 24th, 2013: BL Lac Object: A Mis-Identification? by fatha731 http://www.galaxyzooforum.org/index.php?topic=281112.0 " they were mis-identified as stars. The first such "star" to be noted was BL Lacertae, a star from our galaxy. Only later was it realized that it was not a variable star but a distant galaxy with peculiar properties, but the name stuck to the class of objects exhibiting the same features. (That explains the title!)... we look directly into this jet."
Forum: The Blazar Continuum thread http://www.galaxyzooforum.org/index.php?topic=273633.0 "A class of active galaxy that includes BL Lacertae objects, high polarization quasars (HPQs), and optically violent variables (OVVs). Blazars are characterized by strong, compact, flat-spectrum radio emission. They also show continuum domination of the optical emission, and/or significant optical polarization, and/or strong gamma-ray emission, and/or significant changes in optical flux on short time scales. They are believed to be active galactic nuclei (AGN) whose jets are aligned within 10° of our line of sight."
blazar with jet pointing towards us.
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237661388142018563
Forum: QSO B1418+54 -- BL Lac - type object http://www.galaxyzooforum.org/index.php?topic=273633.msg644240#msg644240 nice images posted by c_cld
Forum: Another great Markarian, we need a thread for these. http://www.galaxyzooforum.org/index.php?topic=10047.0 "NGC2214 says "The Markarian catalog was produced by Benyamin Markarian and colleagues (I claim today's award for obviousness) at the Byurakan Observatory in Armenia. It included objects which were unusually bright in the near-ultraviolet, as seen in objective-prism photographs from their Schmidt telescope. Thus the catalog of 1500 objects includes Seyfert galaxies (the first large sample of these), starbursts, star-forming knots in bright galaxies, and BL Lacertae objects. I have a reformatted version of the final catalog provided by once-Soviet colleagues here. Since the Byurakan astronomers continued similar work with a different photographic setup in the Second Byrurkan Survey or SBS, the original Markarian project is now sometimes known as the FBS."
Talk: Quasar pair or lensed by C_cld
http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ000167u?
page=1&comment_id=54ae6d0d9cd1180b9f0004c7
a list of paired quasars with images and spectraForum: QSO H1413 + 117. http://www.galaxyzooforum.org/index.php?topic=275042.msg430650#msg430650 Cloverleaf Quasar. a single quasar split into four images,due to lensing
MAJOR MERGERS HOST THE MOST LUMINOUS RED QUASARS AT Z ∼ 2: A HUBBLE SPACE
TELESCOPE WFC3/IR STUDY.
Eilat Glikman1
, Brooke Simmons2
, Madeline Mailly1
, Kevin Schawinski3
, C. M. Urry4
, M. Lacy
The red quasars come from the FIRST+2MASS red quasar survey http://arxiv.org/pdf/1504.02111v1.pdfForum: Saturday,September 14, 2013:Poached egg by Tony Wei http://www.galaxyzooforum.org/index.php?topic=281230.0 NGC7742 a Seyfert-2 galaxy
Forum: Saturday, October 12th, 2013: Quasars: Astronomical lighthouses by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281423.0 quasars, blazars, jets
mysterious green wisp, Aida's green blob
Forum: Thursday 23rd July 2009: A Mysterious Green Blob from Aida & Tsering by Alice http://www.galaxyzooforum.org/index.php?topic=275775.0 from Dr Keel "We did get a spectrum in 2010. It's a smallish star-forming galaxy at z=0.0219, and we now know which way its disk is rotating. Its strong hydrogen emission seems to be the major reason for the green SDSS color. from People's Choice spectra - a mysterious wisp http://www.galaxyzooforum.org/index.php?topic=278011.msg478870#msg478870
Forum: Wednesday, 23rd January, 2013: AGN? Starburst? Both?? Jean Tate http://www.galaxyzooforum.org/index.php?topic=280601.0 Spectra and BPT diagram."
Forum: Thurs Nov 1 2012 An unusual spectrum by Budgieye http://www.galaxyzooforum.org/index.php?topic=280487 BAL quasar? Red Star?
Green quasar
green quasar at z=5
by Zutopian http://www.galaxyzooforum.org/index.php?topic=4767.msg567459#msg567459 "ATel #3474; E.O. Ofek, A. Gal-Yam, P. Groot on 5 Jul 2011; 23:43 UT
Talk: Secular Black Hole Growth and Feedback in Merger-Free Galaxies; HST Proposal 14606 PI: Brooke Simmons https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00025lc?page=2&comment_id=584b0d68aeb4425643000652
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Budgieye
moderator
3.3 AGN-illuminated clouds, voorwerpje https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
In this diagram, the blue areas are AGN-illuminated clouds, also known as voorwerpjes.
relativistic jets and voorwerpje are different
AGN-illuminated clouds: The ultraviolet light from the nucleus shines on hydrogen in and makes it glow.
The hydrogen can be in a spiral arm that has been disturbed and in the wrong place, or in a tidal stream of stars and hydrogen, or in a nearby galaxy.
AGN-illuminated clouds can be dark blue, red or green depending on redshift.
Hanny's Voorpwerp is one example of an AGN cloud.
voorwerpjes are smaller examples.
A Relativistic jet is a stream of particles ejected from the north and south poles of the black hole of the galaxy. It is a small feature, seen in only few nearby galaxies.
Hubble finds ghosts of quasars past http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001cvm?page=2&comment_id=551e945340ead5084d000398 great images of the AGN clouds / voorwerps /voorwerpje
Shocked hydrogen example is Minkowski’s Object , see under relativistic jets below. The energy causes stars to form, to make a small blue area.
Forum: Friday, August 16, 2013: spectra, spectra everywhere! by NGC3314 http://www.galaxyzooforum.org/index.php?topic=281082.0 UGC 11185 UGC11185.
Montage of Hubble images of VoorwerpjesBlog: Hubble science results on Voorwerpjes – episode 1 March 17, 2015 by billkeel http://blog.galaxyzoo.org/2015/03/17/hubble-science-results-on-voorwerpjes-episode-1/ "the first paper discussing the detailed results of the Hubble observations of the giant ionized clouds we’ve come to call Voorwerpjes has been accepted for publication"
Blog: Blog: Fibers and Voorwerpjes November 18, 2014 by billkeel http://blog.galaxyzoo.org/2014/11/18/fibers-and-voorwerpjes/ "the Integral-Field Unit (IFU)..use fiber optics to rearrange light from the object,.. revealing multiple clouds of gas moving within a total span of almost 1000 km/s.Elsewhere, the European Southern Observatory has commissioned an enormous IFU, and the Sloan team has rebuilt their fiber bundles so that each one now makes multiple IFUs which can be placed on many galaxies at a time – this par of the Sloan survey extension in known as MANGA. Then there is the Spanish-led CALIFA project for hundreds of galaxies, which has publicly released data for their first two subsets. Then there are SAURON (whose data ca be tamed in software by GANDALF) and the upgrade of SCORPIO-2 and more…"
Blog: Voorwerpjes – results now ready for prime time! November 1, 2011 by Bill Keel http://blog.galaxyzoo.org/2011/11/01/voorwerpjes-results-now-ready-for-prime-time/ "our spectroscopic study of the most interesting galaxies
has been accepted for publication in the Monthly Notices of the Royal Astronomical Society....We found 19 galaxies with AGN-ionized clouds extending more than 10 kiloparsecs from the nuclei...Our special interest in these clouds lies in the way they can show us whether the central AGN has changed much in brightness over the time"Blog: First look at Hubble's first look at the first Voorwerpje November 8, 2011
by Bill Keel http://blog.galaxyzoo.org/2011/11/08/first-look-at-hubbles-first-look-at-the-first-voorwerpje/ "having just been downlinked from Hubble overnight. There is still a good bit of processing to be done, cleaning up cosmic rays and so forth. But that said, here is our first look at SDSS 2201+11,..."Blog: New from the Zoo – gas clouds around active galactic nuclei May 2009 http://blog.galaxyzoo.org/2009/05/24/new-from-the-zoo-gas-clouds-around-active-galactic-nuclei/ examples, and some spectral charts
AGN-illuminated cloud at z=0.029
SDSS J153854.16+170134.3 1237665566615666691 http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587739845390761994
AGN-illuminated cloud "The Teacup" imaged by Hubble Space Telescope
SDSS J143029.88+133912.0 http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587736809916399664
AGN-illuminated cloud
SDSS J133816.86+481638.5 SDSS J133817.27+481632.2 SDSS J133817.77+481641.0
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587732483292266549
[AGZ0002244(http://talk.galaxyzoo.org/#/subjects/AGZ0002244) http://talk.galaxyzoo.org/#/subjects/AGZ0002244
AGN-illuminated cloud
SDSS J121819.30+291512.9 1237667210529275951
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587739719750058064
AGN-illuminated cloud
http://talk.galaxyzoo.org/#/subjects/AGZ0001xbbhttp://talk.galaxyzoo.org/#/subjects/AGZ0001xbb
SDSS J220141.64+115124.4 1237652942625767592 http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587727221400862869
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237652942625767592
http://skyserver.sdss.org/dr7/en/tools/explore/obj.asp?id=587727221400862869
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237656241159405815
CGCG 428-014
AGN-illuminated cloud
SDSS J134442.16+555313.5 1237661387602853939 http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587735666377949228
SDSS J133815.87+043233.3 1237671958054502484 http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587729158970736727
AGN-illuminated cloud
SDSS J160536.79+174807.5 1237665442071838882 http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587739720846934175
AGN-illuminated cloud
SDSS J121452.41+591953.1 1237658609292935181 http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587729386079059975
Forum: Re: Sought: AGN with big companion galaxies by Dr Bill Keel June 2014 http://www.galaxyzooforum.org/index.php?topic=279841.msg660032#msg660032 "We have now observed 33 AGN/companion galaxy pairs looking for gas ionized by the AGN in the companion galaxy or tidal tails. The pairs where we see spectroscopic evidence of cross-ionization, or ionization of a tidal tail, are (links to DR10 Explorer pages):
SDSS J002944.89+001011.1 1237663784200634427
SDSS J005754.03+012013.8
1237678617424166953
SDSS J005754.17+012004.1 (UM 293)
SDSS J083902.96+470756.3 1237654381974716589
SDSS J084810.11+351534.3 1237664871356891234 SDSS J084809.68+351532.0
SDSS J104232.05+050241.9 1237654602104897626 SDSS J104231.47+050237.8 NGC 3341SDSS J120149.74-015327.5
1237650762390765695
SDSS J121418.25+293146.7 1237667253478424610
SDSS J121417.80+293143.4 1237667253478424609
One of the classics - pointed out as early as 1992 in this context and still a top candidate.
SDSS J135429.05+132757.2 1237662529526890706 SDSS J135429.18+132807.2
SDSS J143130.85‐031821.4 123767465529075355
SDSS J134143.75+554025.5 1237661387065786478
SDSS J110017.99+100256.8 1237671932283322445 blue area under galaxyFor the record, here are the others we observed that don't fall in this class. Some are clearly dual AGN, which is a separate set of questions. Some have AGN but gas ionized by the AGN only in a small region around the nucleus. A couple seem to not be AGN at all, despite a published classification that made it into NED and had us look at them (all these are things without SDSS spectra).
SDSS J075729.04+351105.9
SDSS J080004.05+232616.2
SDSS J083848.14+040734.0
SDSS J084135.08+010156.2
SDSS J084742.44+344504.4 The well-known quasar PG 0844+349; its gas has H-alpha but not [O III], so doesn't see much radiation from the AGN. This is kind of funny - maybe the ionizing radiation is locked from reaching the galaxy disk by an obscuring torus near the central black hole.
SDSS J090436.92+553602.9
SDSS J101043.36+061201.4
SDSS J105030.47+232931.4
SDSS J110157.90+101739.3
SDSS J113240.25+525701.4 (Mkn 176)
SDSS J113858.89+141253.2
SDSS J114252.83+325124.2
SDSS J120041.39+314746.2
SDSS J121303.35+513855.2
SDSS J121943.13+132659.9
SDSS J124322.55+373858.0
SDSS J130354.71-030631.8
SDSS J134203.48+183901.5
SDSS J134736.39+173404.6
SDSS J135255.67+252859.6
SDSS J141447.15-000013.1
Kazarian 199 = NGC 6636 (outside SDSS, and apparently not a Seyfert nucleus at all).
[correction 198 😕/simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC++6636]
The spectra provide evidence of cross-ionization, which we need to follow up with emission-line imaging or integral-field spectroscopy to understand over how wide an area it happens. There is a pending Hubble proposal to look at the 9 more distant pairs in the top list."
Blog: Hunting Voorwerpjes October 21, 2010 by Kevin http://blog.galaxyzoo.org/2010/10/21/hunting-voorwerpjes/ "what we want to know is if there are more Voorwerps, or if Hanny’s Voorwerp is all we have in the local universe. This turns out to be harder than it sounds because asking a computer to go search a massive data set like Sloan for smudges that have this weird blue-purple-y colour is rather difficult. In fact, the Computer said ‘no.’ Fortunately, we could ask you folks to find weird blue-purpley-y stuff around galaxies because such a vaguely phrased question of a human makes sense."
the plural of Voorwerp is Voorwerpen Voorwerpje means “little object” NOT “objects”Blog: Voorwerpje Hunting for Beginners September 8, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/09/08/voorwerpje-hunting-for-beginners/ "Laihro had been working with Bill Keel on the hunting for active galaxies with ionized gas clouds, and had worked out a way to extract active galaxies from SDSS, and had the idea of using my hunting program to search through the list. Two further lists of likely candidates also came from Kevin (from X-ray galaxies) and Bill (known active galaxies). This hunt needed a good tutorial, which Bill wrote, and then the hunt was launched. Voorwerpje hunting was looking for needles in haystacks, most images didn’t have a Voorwerpje, but it included some very pretty and interesting galaxies – enough to keep me in OOTD candidates for a year....There were 18129 different objects listed, 14 had duff SDSS data (an unusually high number), the rest had at least 10 of you click Yes,"
Blog: A Galaxy in a Teacup (or vice versa) by Bill Keel July 2014 http://blog.galaxyzoo.org/2014/07/09/a-galaxy-in-a-teacup-or-vice-versa/ "gas photoionized by an AGN. Later this object featured in the Voorwerpje hunt, as one of the 8 cases showing an energy deficit from the nucleus so it must have faded. "
Blog: Reflections on Voorwerpjes by Bill Keel February 2014 http://blog.galaxyzoo.org/2014/02/03/reflections-on-voorwerpjes/ "polarization measurements tell us something about how much of the light we see is secondhand emission from the AGN rather than produced on the spot in the clouds (admittedly as a side effect of the intense UV radiation from the nucleus), and will show us whether we’re fortunate enough that there might be a dust cloud reflecting so much light that we could look there to measure the spectrum of the nucleus when it was a full-fledged quasar."
Blog: We got (some) observing time! Kevin Chawinski Sept 2013 http://blog.galaxyzoo.org/2013/09/25/we-got-some-observing-time/ "We applied for radio observations with the e-MERLIN network of radio telescopes in the UK. The e-MERLIN network can link up radio dishes across the UK to form a really, really large radio telescope using the interferometry technique....to observe the Voorwerpjes. We wanted to take a really high resolution look at what the black holes are doing right now by looking for nuclear radio jets."
Blog: Galaxy Zoo Voorwerpjes – now with Hubble data! June 8, 2011 http://blog.galaxyzoo.org/2011/06/08/galaxy-zoo-voorwerpjes-now-with-hubble-data/ "I realized that such clouds could be spotted based on their unusual colors from the SDSS images, and with contributions from Waveney and laihro setting up the web interface and one of our source lists, the hunt was on! The results staggered us – within 6 weeks each of the 18,000 candidate galaxies had been examined by at least 10 Zooites. Seven of you looked at them all! Then we could examine the highest-scoring galaxies, in three sessions from Kitt Peak and Lick observatories, measuring spectra to see which ones really show gas ionized by an active nucleus. Once again, Drew, alias sdrew123, has done a lot of the data reduction and Python action in this part of the project. Our sample of giant AGN clouds now includes 19, each showing gas more than 10 kiloparsecs (32,000 light-years) from the galaxy core, so we get information on its history over at least that many years."
SDSS J100507.88+283038.5 Markarian 78 #mrk 78
SDSS J074241.70+651037.8
SDSS J095559.34+395438.9.
Blog: Hunting Voorwerpjes October 21, 2010 by Kevin http://blog.galaxyzoo.org/2010/10/21/hunting-voorwerpjes/ £what we want to know is if there are more Voorwerps, or if Hanny’s Voorwerp is all we have in the local universe. This turns out to be harder than it sounds because asking a computer to go search a massive data set like Sloan for smudges that have this weird blue-purple-y colour is rather difficult. In fact, the Computer said ‘no.’ Fortunately, we could ask you folks to find weird blue-purpley-y stuff around galaxies because such a vaguely phrased question of a human makes sense. And you found more Voorwerps. Since they’re smaller, we dubbed them Voorwerpjes, or `Little Objects’ in Dutch "
Blog: Hunting Voorwerpjes, back on Earth http://blog.galaxyzoo.org/2010/12/09/hunting-voorwerpjes-back-on-earth/ at Lick Observatory’s 3-meter Shane telescope, 3 of 13 candidates looked good.
Blog: XMM-Newton time granted to observe the Voorwerpjes! http://blog.galaxyzoo.org/2010/12/02/xmm-newton-time-granted-to-observe-the-voorwerpjes/
'Blog: Operations at Kitt Peak June 20, 2010 http://blog.galaxyzoo.org/2010/06/20/operations-at-kitt-peak/ "On our telescope we have Gold Cam, a spectrograph and camera which allows us to analyse the light from galaxies and Voorwerpjes alike. By splitting up their light in to all its component colours, we can tell a great deal about each object, from how far away it is to what kind of atoms make it up and what state these atoms are in . To get the best out of this system however we need to prepare and calibrate it each night. The first thing we have to do is get the system nice and cold....liquid nitrogen"
Blog: Hunting Voorwerpjes from Arizona June 15, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/06/15/hunting-voorwerpjes-from-arizona/ "at Kitt Peak again, this time using a spectrograph to chase down Voorwerpjes. As the Dutch diminutive indicates, these are like Hanny’s Voorwerp, only smaller. Zooites have given us a rich new list of potential objects, many from the special object hunt set up by Waveney incorporating database queries done by laihro, and more from reports on the Forum. They often show up as oddly-shaped blue zones on the SDSS images, when strong [O III] emission lies in the SDSS g filter. At some redshifts, they look purple, when Hα enters the i filter."
Website: Images of Quasars and Active Galactic Nuclei Bill Keels website http://www.astr.ua.edu/keel/agn/
Publication: Spatially-Resolved Spectra of the "Teacup" AGN: Tracing the History of a Dying Quasar by J.P. Gagne, D.M. Crenshaw, S.B. Kraemer, H.R. Schmitt, W.C. Keel, S. Rafter, T.C. Fischer, V.N. Bennert, K. Schawinski July 2014 http://arxiv.org/abs/1407.1729
"Extended Emission-Line Regions (EELRs), suggesting that the AGN has decreased in luminosity by this amount in a continuous fashion over 46,000 years, supporting the case for a dying AGN"website: Voorwerpje Hunt:: Hunting for gas clouds illuminated by AGN by Bill Keel http://wavwebs.com/GZ/voorwerpje/Hunt.cgi These are like Hanny's Voorwerp but smaller, we use the Dutch diminutive form;
Possible Colours of AGN-illuminated clouds:
redshift emission lines colour
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0.0-0.07 OIII blue
0.0-0.07 NII+Hα green to yellow
0.0-0.07 OIII+NII+Hα turquoise
0.07-0.1 OIII turquoise to green
0.07-0.1 NII+Hα red
0.07-0.1 OIII+NII+Hα pink to yellow
Hubblesite:Hubble Finds Phantom Objects Near Dead Quasars http://hubblesite.org/newscenter/archive/releases/2015/13/full/ "NASA's Hubble Space Telescope has photographed a set of wispy, goblin-green objects that are the ephemeral ghosts of quasars that flickered to life and then faded."
Publication: HST Imaging of Fading AGN Candidates I: Host-Galaxy Properties and Origin of the Extended Gas William C. Keel, W. Peter Maksym, Vardha N. Bennert, Chris J. Lintott, S. Drew Chojnowski, Alexei Moiseev, Aleksandrina Smirnova, Kevin Schawinski, C. Megan Urry, Daniel A. Evans, Anna Pancoast, Bryan Scott, Charles Showley, Kelsi Flatland http://arxiv.org/abs/1408.5159http://arxiv.org/abs/1408.5159 http://arxiv.org/pdf/1408.5159v2.pdf
Publication: The Galaxy Zoo survey for giant AGN-ionized clouds: past and present black hole accretion events by Keel, William C.; Chojnowski, S. Drew; Bennert, Vardha N.; Schawinski, Kevin; Lintott, Chris J.; Lynn, Stuart; Pancoast, Anna; Harris, Chelsea; Nierenberg, A. M.; Sonnenfeld, Alessandro; Proctor, Richard MNRAS http://adsabs.harvard.edu/abs/2012MNRAS.420..878K looking for more extended emission-line regions (EELRs) like Hanny's Voorwerp, where the light from an AGN hits a tidal tail, cone angle of that light
Forum: Friday, October 4th, 2013: Voorwerpjes, more than just Hanny's voorwerp by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281407.0 many other voorwerps were later discovered
Forum: Thursday, 11 July 2013: NGC 7252 - the littlest Voorwerpje by JeanTate http://www.galaxyzooforum.org/index.php?topic=280989.0 "The [O III] Nebula of the Merger Remnant NGC 7252: A Likely Faint Ionization Echo" NGC7252
Forum: Wednesday, 14th November 2012: The Voorwerpje UGC 11185 UGC1185 by JeanTate http://www.galaxyzooforum.org/index.php?topic=280496.0 imaged by Hubble.
Forum: Wednesday, 22nd August, 2012: An Anniversary Voorwerpje by JeanTate http://www.galaxyzooforum.org/index.php?topic=280351.0 describes it as "a Martian flamenco dancer with some cobwebs" Hubble image SDSS J151004.01+074037.1 SDSS 1510+07
Forum: Wednesday 5th September, 2012: UGC 7342 by JeanTate http://www.galaxyzooforum.org/index.php?topic=280374.0 UGC7342 voorwerpje new Hubble image
Tutorial how to use "General Catalog Query Engine" in IRSA (Voorwerpje Hunt 2019)
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/86058
There are several papers that contain follow-up observations of Voorwerps/Voorwerpjes
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/858076?comment=1946169Posted
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Budgieye
moderator
3.4 Green Bean galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
Huge black hole produces X-rays which causes galaxy oxygen to shine brightly. There are only about 20 found so far.
Green bean galaxies (GBGs) are very rare astronomical objects that are thought to be quasar ionization echos.
A GBG has a very massive black hole, a thousand times bigger than the usual Super Massive Black Hole (SMBH). The black hole spray X-rays at its galaxy, and any oxygen gas atoms captures the energy, then fluoresces. The black hole is in the process of shutting down and stops shining, but the galaxy is still fluorescing since X-rays take thousands of years to travel across the galaxy.
The colour is similar to Green Peas and Hanny's Voorwerp, but these two are illuminated by UV (ultraviolet light), not X-rays.
Galaxy-wide Echoes from the past http://www.cfht.hawaii.edu/en/news/GreenBeans/
http://skyserver.sdss.org/dr12/en/tools/explore/Summary.aspx?id=1237668298202415270 J2240
Forum: Saturday, 15 December 2012: Green Bean Galaxies and Flashing Quasars by Prof Bill Keel http://www.galaxyzooforum.org/index.php?topic=280558.msg622346#msg622346
"A sample of Seyfert-2 galaxies with ultra-luminous galaxy-wide NLRs -- Quasar light echos?"
Quote
We report the discovery of Seyfert-2 galaxies in SDSS-DR8 with galaxy-wide, ultra-luminous narrow-line regions (NLRs) at redshifts z=0.2-0.6. With a space density of 4.4 per cubic Gpc at z~0.3, these "Green Beans" (GBs) are amongst the rarest objects in the Universe. We are witnessing an exceptional and/or short-lived phenomenon in the life cycle of AGN. The main focus of this paper is on a detailed analysis of the GB prototype galaxy J2240-0927 (z=0.326). Its NLR extends over 26x44 kpc and is surrounded by an extended narrow-line region (ENLR). With a total [OIII]5008 luminosity of (5.7+/-0.9)x10e43 erg/s, this is one of the most luminous NLR known around any type-2 galaxy. Using VLT/XSHOOTER we show that the NLR is powered by an AGN, and we derive resolved extinction, density and ionization maps. Gas kinematics is disturbed on a global scale, and high velocity outflows are absent or faint. This NLR is unlike any other NLR or extended emission line region (EELR) known. Spectroscopy with Gemini/GMOS reveals extended, high luminosity [OIII] emission also in other GBs. WISE 24micron luminosities are 5-50 times lower than predicted by the [OIII] fluxes, suggesting that the NLRs reflect earlier, very active quasar states that have strongly subsided in less than a galaxies' light crossing time. These light echos are about 100 times more luminous than any other such light echo known to date. X-ray data are needed for photo-ionization modeling and to verify the light echos.
Authors: Mischa Schirmer, Ruben Diaz, Karianne Holhjem, Nancy Levenson, Claudia Winge
(Submitted on 29 Nov 2012)
http://arxiv.org/abs/1211.7098Paper:Green Beans:Quasar light echos? (cites Hanny's V., Voorwerpjes, G. Peas) (Read 2563 times) http://www.galaxyzooforum.org/index.php?topic=280535.msg621581#msg621581 Zutopian and JeanTate put together this
http://astronomy.ua.edu/keel/research/GreenBeanMontageSDSSx.jpg
001 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237679077517557845
002 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237676441460474246
003 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237666091128914338
004 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237666340800364769
005 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237680284389015833
006 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237650371555229774
007 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237661386529374363
008 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237662236402647262
009 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237665442062663827
010 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237655742407835791
011 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237662306730639531
012 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237667968032637115
013 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237669699436675933
014 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237680191506678389
015 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237680306395415794
016 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237656538051248311 Prototype
017 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237680503434445439
Reference: Quasar Ionization Echoes -- 100,000 Year Baseline AGN Light Curves
Wednesday, 23rd January, 2013: AGN? Starburst? Both?? by JeanTate http://www.galaxyzooforum.org/index.php?topic=280601.msg625049#msg625049 http://adsabs.harvard.edu/abs/2014AAS...22325011S "Green Bean galaxies (GBs, Schirmer et al. 2013) are extremely rare type-2 AGN. Only 17 were found in the 14,500 square degrees SDSS-DR9, with redshifts in the range 0.19 < z < 0.34. {...] These ionization echoes provide a unique window into what could be the final shut-down process of quasars. In our project we combine high-resolution narrow-band imaging with ACS/HST, IFU spectroscopy with GMOS/Gemini, and X-ray data with Chandra to study the ionization echoes further. Using the spatially resolved NLRs and the finite speed of light, we can reconstruct individual AGN X-ray light curves over a baseline of up to 100,000 years. Slideshow: http://astrofisica.na.infn.it/restlessAGN/Conference talks/schirmer_naples_may2013.pdf
Respectively, SDSS J082042.46+205714.9 (DR7 ObjId 587739153355767830, DR8 1237674371291414640), SDSS J123719.33+114915.9 (588017569773846558, 1237658629159452685; this is the DR9 image [1]), and SDSS J140052.56-014511.0 (587729774220738649,
Posted
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Budgieye
moderator
3.5 Hanny's Voorwerp
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3Forum: The Hanny's Voorwerp / What's the blue stuff below? by Hanny August 13, 2007 http://www.galaxyzooforum.org/index.php?topic=3802.0 The discovery of Hanny's Voorpwerp
Incidentally, Fred J. Gray and Wolter van den Brink were moderators on Stardust@home and in the early days of GZ thought of the name 'Hanny's Voorwerp' when using the GZ forum. https://www.zooniverse.org/talk/14/53394
from http://en.wikipedia.org/wiki/Hanny's_Voorwerp
Blog: X-ray observations of IC 2497 in the can! January 10, 2012 http://blog.galaxyzoo.org/2012/01/10/x-ray-observations-of-ic-2497-in-the-can/ " we had turned to Chandra to figure out what was going on in the center of IC 2497. To puzzle apart the faint black hole at the center and the gas around, and Chandra has the sharpest X-ray eyes in the sky...
Blog: Live blog : Voorwerp press conference January 10, 2011 http://blog.galaxyzoo.org/2011/01/10/live-blogging-press-conference-at-aas/ "live from the press conference room at the American Astronomical Society’s meeting in Seattle, sitting next to the object’s discoverer and namesake Hanny van Arkel and Zooniverse developer Rob who will be keeping twitter up to date."
HST image of Hanny's VoorwerpBlog: Hanny's Voorwerp and Hubble January 10, 2011 by Bill Keel http://blog.galaxyzoo.org/2011/01/10/hannys-voorwerp-and-hubble-what-did-we-learn/ long description "Stars are forming in a small part of the Voorwerp. We couldn’t see this from the ground because the regions involved are dim and blend with the overall gas emission... IC 2497 has had a troubled past. It looked a bit odd in our earlier data, but the Hubble images make clear how disturbed this galaxy is. Spiral arms are twisted and warped out of a single plane, and thick dust patches also show that it has yet to settle into a simple form after the disturbance. This looks a lot like the aftermath of a strong interaction – and since we see no other culprit nearby, probably a merger where the other victim is now part of IC 2497. "
Blog: When do we see the Hubble results? The final countdown. Dec, 2010 http://blog.galaxyzoo.org/2010/12/30/when-do-we-see-the-hubble-results-the-final-countdown/ "Hubble results on Hanny’s Voorwerp and IC 2497 will be released in a press conference on Monday, January 10, at 12:45 p.m. Pacific Standard Time. This is during the meeting of the American Astronomical Society in Seattle, where two presentations will discuss recent work on Hanny’s Voorwerp (and a couple of additional poster papers deal with “voorwerpjes” from the Zoo).
Blog: AAS January Voorwerp even video available June 13, 2011 http://blog.galaxyzoo.org/2011/06/13/aas-january-voorwerp-even-video-available/ "he video of the press conference at the January AAS meeting where we presented the Hubble Space Telescope of Hanny’s Voorwerp is now available from the AAS."
Blog: The Sudden Death of the Nearest Quasar November 4, 2010 by Jim http://blog.galaxyzoo.org/2010/11/04/the-sudden-death-of-the-nearest-quasar/
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"When I told Bill Keel the results of the analysis of the X-ray
observations by the Suzaku and XMM-Newton space observatories, he
summed up the result with a quote from a famous doctor:“It’s dead, Jim.”
The black hole in IC 2497, that is.
So what did we find? We found something, but it isn’t a quasar. With
the X-ray data, we can definitely rule out the presence of a quasar
in IC 2497 powerful enough to light up the Voorwerp. We do however
see some very weak X-ray emission that most likely comes from the
black hole feeding at a very low level. Compared to what you need to
light up the Voorwerp (the floodlight), the black hole currently puts
out 1/10,000 of the required luminosity. That’s like trying to
illuminate a sports stadium at night with a candle.We can therefore conclude that the black hole in IC 2497 dropped in
luminosity by a factor of ~10,000 at some point in the last 70,000
years. This implies a number of very exciting things:-
A mere 70,000 years ago (a blink of an eye, cosmologically
speaking), IC 2497 was a powerful quasar. Since it’s at a redshift of
only z=0.05, it’s the nearest such quasar to us. Since IC 2497 is so
close to us, and the quasar has switched off, it means that images of
IC 2496 are the best images of a quasar host galaxy we will ever get. -
Quasars can just switch off very quickly! We didn’t know they
could do this before, and the fact that they can is very exciting. -
Maybe the quasar didn’t just switch off, but rather switched
state, and is now putting out all its energy not as light (i.e. a
quasar), but as kinetic energy. That’s an extremely intriguing
possibility and something I want to investigate"
Blog: How to handle Hubble images April 12, 2010 by Bill Keel
http://blog.galaxyzoo.org/2010/04/12/how-to-handle-hubble-images/ How
cosmic rays are cleaned up in Hubble images. -
Blog: UV(oorwerp) from Space March 4, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/03/04/uvoorwerp-from-space/ "Hanny’svVoorwerp ...was entered in the observing schedule for NASA’S GALEX satellite (GALaxy Evolution EXplorer). Alex Szalay, who belongs to both the GALEX and Galaxy Zoo science teams, played a key role in making this happen)....Hanny’s Voorwerp is brighter than IC 2497 at these wavelengths...C IV and He II are unmistakeable, each blurred by the size of the emitting cloud. An optical line of He IIat 4686 A was one of the things that put us on the trail when we got the first optical spectra, and in the UV there is a stronger one. "
Blog: Voorwerping, Part 1 September 14, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/09/14/voorwerping-part-1/ "I’m working on the Suzaku data that we’ve obtained on IC2497, the galaxy next to Hanny’s Voorwerp. X-rays, especially the really energetic ones that Suzaku is able to detect are probably the best way to probe whether the black hole in a galaxy is actively feeding or not. Shanil Virani and I are currently working on the data reduction and analysis,..."
Blog: He said that they said that he said…[the debate about what causes Hanny's Voorwerp to shine] July 2009 "So why the argument? There’s a loophole; if – and I think only if – the material at the centre of the VoorwerpIC 2497 has some strange arrangement so that it’s thick enough to block almost all radiation in our line of site but allow enough to escape to affect the Voorwerp.....How do we settle the (friendly) debate? The obvious way is more observations – in particular, checking for more energetic x-rays which should punch through even very thick absorption."
Blog; Voorwerping, Part 2 December 7, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/12/07/voorwerping-part-2/ "We’ve been working hard at making sense of the X-ray data from Suzaku and it turns out we (that is, Shanil) will have to do a very, very careful analysis of the data beyond what is described in the handbook to be sure we understand what the data mean. In the meantime, I’ve started the paper and generated some new, very beautiful composite images of IC 2497 and the Voorwerp…"
Hanny's Voorwerp with WIYN telescope at Kitt Peak,Blog: Unveiling Hanny's Voorwerp – one step at a time July 2009 http://blog.galaxyzoo.org/2009/07/11/unveiling-hannys-voorwerp-one-step-at-a-time/ a set of fabulous images taken late last year from the 3.5m WIYN telescope at Kitt Peak, Arizona... ...The spiral arms of IC 2497 show a warp, suggesting that it has been disturbed by a close encounter with some other galaxy within the last few hundred million years.... The dust will also interfere with what we can see of the enigmatic nucleus of the galaxy...ew detail in Hanny’s Voorwerp as well. Knots, clumps, filaments. There is a hint that its north end breaks up into little curves looking like bow shocks, such as we would see if there is unseen material flowing into it from the north side."
Blog: She's an Astronomer: Hanny van Arkel July 2009 http://blog.galaxyzoo.org/2009/05/01/shes-an-astronomer-hanny-van-arkel/ "Hanny discovered what is now known as “Hanny’s Voorwerp” while classifying galaxies on Galaxy Zoo, back in 2007. ...lectures about the Voorwerp and Galaxy Zoo
Blog: Voorwerps everywhere June 2009 http://blog.galaxyzoo.org/2009/06/29/voorwerps-everywhere/ with link to the paper
Blog: Beaten to the punch May 2009 http://blog.galaxyzoo.org/2009/05/14/beaten-to-the-punch/ In the meantime, a group of Dutch radio astronomers have published a paper reporting their own results which is accepted and available online.
Blog: Suzaku observations of IC2497/Hanny's Voorwerp completed April 2009 http://blog.galaxyzoo.org/2009/04/27/suzaku-observations-of-ic2497hannys-voorwerp-completed/
Blog: Galaxy Zoo gets observing time: the high-energy universe as seen by the `Red Bird' March 9, 2009
by The Zooniverse http://blog.galaxyzoo.org/2009/03/09/galaxy-zoo-gets-observing-time-the-high-energy-universe-as-seen-by-the-red-bird/ "NASA posted the results of it’s Cycle 4 Announcement of Opportunity to use the Suzaku X-ray space telescope and we spotted a familiar target ... IC 2497"Blog: Getting ready for some hard-X-ray observing… March 2009 http://blog.galaxyzoo.org/2009/03/27/getting-ready-for-some-hard-x-ray-observing/ "..21 hours) of Suzaku time. Suzaku is a Japanese-led space telescope that observes hard X-rays. Hard X-rays have the handy property of penetrating just about everything, even the most messy gas and dust that tends to collect in the centres of galaxies and around supermassive black holes. We’re pointing Suzaku and its instruments at IC 2497, the massive galaxy next to Hanny’s Voorwerp. "
Blog: 4 Calling birds, 3 French hens, 2 Turtle Doves and 37,000 seconds of XMM-Newton Time http://blog.galaxyzoo.org/2008/12/21/4-calling-birds-3-french-hens-2-turtle-doves-and-37000-seconds-of-xmm-newton-time/ "One of the Big Questions about the Voorwerp is whether the quasar in IC 2497 (the spiral galaxy next to it) has really shut down, or whether it’s just hidden (obscured) by lots of gas and dust around it. With the help of this X-ray observation, we will hopefully be able to tell the difference between these two scenarios. When supermassive black holes feed, they emit radiation at many wavelengths, but X-rays are the most reliable measure of just how much material they really are gobbling up. "
Blog: Getting Observing Time December 2008 http://blog.galaxyzoo.org/2008/12/29/getting-observing-time/ "We wanted to learn more about what physics the Voorwerp can teach us and one of the biggest questions about it is whether the supermassive black hole in IC 2497 (the spiral galaxy next to it) has really shut down, or if it is still a quasar and feeding. All indications so far are pointing towards a shutdown, but perhaps the quasar is really hidden by plenty of material in the way. So, we would like to use the X-ray vision of XMM-Newton, a 3.8 ton, bus-sized X-ray space telescope operated by the European Space Agency to take a look and see if any X-rays still get to us. Even if the quasar was highly obscured, some of the X-rays might still get through."
Blog: Hanny's Voorwerp On Tour – Part 1 by Hanny http://blog.galaxyzoo.org/2008/09/07/hannys-voorwerp-on-tour-part-1/ Galaxy Zoo will be on The Sky At Night this weekend and that Patrick Moore interviewed me for that episode about the discovery of Hanny’s Voorwerp..... a guest in the Dutch TV show ‘De Wereld Draait Door‘ (The World Keeps Turning) this Monday, (8th of September). It’s a well-known national and live daily talk show on channel ‘Nederland 3′
Blog: The Hanny's Voorwerp Road Show – US Tour (part I) The Hanny's Voorwerp Road Show – US Tour (part I)
Blog: Hanny's Voorwerp On Tour – Part 2 Hanny October 2008 http://blog.galaxyzoo.org/2008/10/02/hannys-voorwerp-on-tour-part-2/ Hanze University’. ‘Sterrenwacht Sonnenborgh’ ASTRON – Netherlands Institute for Radio Astronomy,
Blog: Hubble, meet Galaxy Zoo. Galaxy Zoo, meet Hubble. July 2008 http://blog.galaxyzoo.org/2008/07/07/hubble-meet-galaxy-zoo-galaxy-zoo-meet-hubble/ Space Telescope Imaging Spectrograph (STIS), which observes the spectrum along a slit about 50 arcseconds long.
Blog: Hanny's Voorwerp gets Slashdotted June 2008 http://blog.galaxyzoo.org/2008/06/23/hannys-voorwerp-gets-slashdotted/ a gaming, coding website
Blog: Hanny's Voorwerp is Astronomy Picture of the Day (APOD) June 2008 http://blog.galaxyzoo.org/2008/06/25/hannys-voorwerp-is-astronomy-picture-of-the-day-apod/
Blog: The Mystery of the Voorwerp Deepens! http://blog.galaxyzoo.org/2008/01/31/the-mystery-of-the-voorwerp-deepens/
Blog: The Ghost of a Black Hole: Hanny's Voorwerp in the News August 7, 2008 http://blog.galaxyzoo.org/2008/08/07/the-ghost-of-a-black-hole-hannys-voorwerp-in-the-news/
Blog: What's an Astronomer's favourite Birthday Gift? http://blog.galaxyzoo.org/2008/05/30/whats-an-astronomers-favourite-birthday-gift/ 7 orbits of Hubble Space Telescope
Blog: Shades of opinion by Bill Keel April 2008 http://blog.galaxyzoo.org/2008/04/29/shades-of-opinion/ "That’s why the Voorwerp appeared as a blue blob even though it’s really green."
spectrum of Hanny's VoorwerpBlog: Voorwerp fever by Bill Keel March 2008 http://blog.galaxyzoo.org/2008/03/20/voorwerp-fever/ "Highly ionized gas, ionized by nothing we can see. Dust reflecting ultraviolet light from no apparent source. No central X-ray source, which makes it very hard to hide something behind a cloud of gas and dust that leaves it visible from the Voorwerp."
Blog: More on the Voorwerp By Bill Keel Jan 2008 http://blog.galaxyzoo.org/2008/01/18/more-on-the-voorwerp/ "To have the 4363 line even detectable, the gas has to be unusually hot, more like 15-20,000 K" "high-speed shock waves may be the culprit. This line is also common in the spectra of active galaxies – Seyfert nuclei and their kin, where we know that there are abundant X-rays interacting with the gas." " This thing looked so blue in the color images (made from the gri images) because it puts out almost ten times as much light coming into the g filter as any of the others....There are no more things in the survey database [...]and have colors within 15% of what we see here."
SDSS imageBlog: What's the blue stuff below? January 11, 2008 by The Zooniverse http://blog.galaxyzoo.org/2008/01/11/whats-the-blue-stuff-below/ £The object seems to be very bright in the g-band image and virtually absent in the others. This led us to think that it must be an emission line object, i.e. an object which emits most of its light only in very specific atomic transitions. This usually means that what we are seeing is ionised gas, rather than stars. ...We’ve managed to contact a friend of ours who is currently observing at the 4.2m William Herschel telescope in La Palma and convinced him to take a spectrum of the Voorwerp for us. It shows us that the Voorwerp is…. drumroll at the same distance as the big galaxy. This implies that it’s really rather huge and luminous.What does all this mean?"
Publication: Galaxy Zoo: Hanny's Voorwerp', a quasar light echo? by Lintott, Chris J.; Schawinski, Kevin; Keel, William; van Arkel, Hanny; Bennert, Nicola; Edmondson, Edward; Thomas, Daniel; Smith, Daniel J. B.; Herbert, Peter D.; Jarvis, Matt J.; Virani, Shanil; Andreescu, Dan; Bamford, Steven P.; Land, Kate; Murray, Phil; Nichol, Robert C.; Raddick, M. Jordan; Slosar, Anže; Szalay, Alex; Vandenberg, Jan http://adsabs.harvard.edu/abs/2009MNRAS.399..129L an unusual object near the spiral galaxy IC2497, discovered by visual inspection of SDSS data, made of ionized oxygen OIII gas, source of ionization is being debated, is it from a nucleus obscured by dust? or has the AGN turned off in the last 100,000 years?
Blog: "**Hanny and the Mystery of the Voorwerp" goes live!**September 2, 2010 http://blog.galaxyzoo.org/2010/09/02/hanny-and-the-mystery-of-the-voorwerp-goes-live/ For those not able to join us in Atlanta, the event will be videocast via UStream.
Blog: Win a Signed Comic Book September 7, 2010 http://blog.galaxyzoo.org/2010/09/07/win-a-signed-comic-book/
Blog: Comic moments with Hanny's Voorwerp and Galaxy Zoo September 9, 2010
by The Zooniverse from Rain Director – Space Track"Dr. Keel gives a great rundown of the events of the Hanny & the Mystery of Voorwerp comic. .. the fun people were having. Beyond the lovely Pam Gay co-hosting the event, Dr. Keel detailing the science and the wonderful Hanny via Skype acting as though this were the most common thing in the world, the young artists, Elea Braasch and Chris Spangler were obviously excited to be there"Blog: A Comic Voorwerp August 20, 2010 by Pamela, Hanny, Bill, Kelly, Elea and Chris http://blog.galaxyzoo.org/2010/08/20/a-comic-voorwerp/
Blog: From Voorwerp to webcomic – the quest continues http://blog.galaxyzoo.org/2010/07/03/from-voorwerp-to-webcomic-the-quest-continues/
Blog: Voorwerp Web-Comic: Authors meeting at CONvergence May 13, 2010 by Pamela http://blog.galaxyzoo.org/2010/05/13/voorwerp-web-comic-authors-meeting-at-convergence/ "And the STScI agrees with us. They’ve funded the creation of a digitized comic book (a web comic) to tell the story of Hanny’s discovery of the Voorwerp "
Forum: Great explanation from Alice http://www.galaxyzooforum.org/index.php?topic=276706.0 Hanny's Voorwerp is a large cloud of hot, ionised gas outside a galaxy. Voorwerpjes ("little Voorwerps" in Dutch) refer to a smaller (but nonetheless probably many dozens of light-years across!) cloud of similarly ionised gas inside a galaxy. These are created by the vast energy emitted by Active Galactic Nuclei: the jet from the quasar heats the gas and knocks off its electrons. Such gas often appears brilliantly blue or purple, and is ribbonlike and does not resemble the starry structure of the galaxy at all. ."
Forum: Saturday, 15 December 2012: Green Bean Galaxies and Flashing Quasars by NGC3314 http://www.galaxyzooforum.org/index.php?topic=280558.0 a review of by Misha Schirmer and colleagues:
A sample of Seyfert-2 galaxies with ultra-luminous galaxy-wide NLRs – Quasar light echos? with spectra and CFHT image
Forum: Monday 6th August 2012: Hanny's Voorwerp is a cloud! by Hanny http://www.galaxyzooforum.org/index.php?topic=280322.0 a wordcloud of keywords used in our papers on Hanny's Voorwerp so far
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Budgieye
moderator
3.6 relativistic jets in optical and radio
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3Relativistic jets in optical light
A relativistic jet is a stream of particles that fly out of the poles of a black hole. This is an contrast to AGN clouds or voorwerps which are caused by radiation(UV light) from a black hole..
Few of these jets can be seen in optical telescopes. We only see the "close" one. We only "see" them when the particles hit hydrogen, and cause the hydrogen to glow or cause star formation. The jets are narrow, so in distant galaxies, the jets would be less than a pixel wide.
see also 6.6 radio data and Radio Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6&comment_id=53d8bb14db90c7673f001035
Visible Optical Relativisitic Jets
3C273 optical relativistic jet
the first quasar discovered 3C273. Relativistic jet is the streak on the bottom right of the galaxy.
Forum: by Edd http://www.galaxyzooforum.org/index.php?topic=10616.msg124760#msg124760 the first quasar discovered. It goes by the name of 3C273
Location of 3C273 in SKY-MAP http://www.sky-map.org/?object=3C 273&zoom=12&img_source=SDSS
3C273 jet and host galaxy with Hubblehttp://hubblesite.org/newscenter/archive/releases/2003/03/image/b/
M87- optical relativistic jet
http://www.universetoday.com/29096/incredible-light-show-gas-jet-flaring-from-m87s-black-hole/#more-29096
M87 with Hubble Space TelescopeFigure 3. Composite of ultraviolet, visible, and infrared images of M87 taken by the HST Wide Field Planetary Camera 2.
Image courtesy of NASA and The Hubble Heritage Team (STScI/AURA).
M87 with Hubble Space Telescopehttp://en.wikipedia.org/wiki/Messier_87
SDSS, can you see the tiny jet?
zoom in on jet in M87 in SDSS
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237658629695668286 nearby small object to get an image from.
Here it is on SDSS. the galaxy is too big and bright, so we don't get it coming up on our screens to classify.
As you can see, there is just a trace of the jet in the SDSS telescope image. Hubble Space Telescope and the SDSS telescope are the same size, but Hubble is in space and has better resolution of the images.
Quasar 3C175 with optical relativistic jet
Forum: Friday, 27 November 2009: Relativistic Jets by EigenState http://www.galaxyzooforum.org/index.php?topic=276794.0 "Quasar 3C175 (z=0.768) provides an extraordinary example of such jets .....image of M87 taken by the Hubble Space Telescope (HST) that shows another well-collimated jet emanating from the core of the elliptical host galaxy.
3C175 with optical relativistic jet
Forum: NGC 1128 Giant Radio Source 3C 75 http://www.galaxyzooforum.org/index.php?topic=275042.msg441739#msg441739 The jets emanate from the vicinity of two supermassive black holes
Talk: AGN radio source with ionized cones http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ000135l?page=1&comment_id=547a3b7527b5621f420003aa green areas near galaxies with radio jets.
Radio Galaxy Zoo Talk: Green galaxies associated with RGZ sources http://radiotalk.galaxyzoo.org/#/boards/BRG0000003/discussions/DRG00007t1
Minkowski's ObjectForum: Saturday 30th April - Minkowski’s Object by Lightbulb500 and Stellar190 http://www.galaxyzooforum.org/index.php?topic=279140.msg544022#msg544022, relativistic jet hits hydrogen cloud and makes blue supergiant stars 6 million years ago.
MRK 490 and its blue companion.Blog: Markarian and the Blob by Alice or Stellar190 http://blog.galaxyzoo.org/2010/07/16/markarian-and-the-blob/ " observation run at Kitt Peak the Galaxy Zoo team had some spare telescope time going after observing a list of Voorwerpjes...The bright blue blobby companion just above the Markarian galaxy MRK 490 centred in the picture above was one such object that was observed. The companion is brimming with new stars as shown by the huge emission line (amongst others) "
Blog: How do black holes form jets? by Stas Shabala, January 2014 http://blog.galaxyzoo.org/2014/01/22/how-do-black-holes-form-jets/ " we don’t know for sure where most of the jet energy comes from. It could be from the accreted matter, or the spin of the black hole, or a combination of both. We are also not sure exactly what sort of charged particles these jets are made up of. "
Forum: The Blazar Continuum thread http://www.galaxyzooforum.org/index.php?topic=273633.0 "A class of active galaxy that includes BL Lacertae objects, high polarization quasars (HPQs), and optically violent variables (OVVs). Blazars are characterized by strong, compact, flat-spectrum radio emission. They also show continuum domination of the optical emission, and/or significant optical polarization, and/or strong gamma-ray emission, and/or significant changes in optical flux on short time scales. They are believed to be active galactic nuclei (AGN) whose jets are aligned within 10° of our line of sight."
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237661388142018563
Forum: QSO B1418+54 -- BL Lac - type object http://www.galaxyzooforum.org/index.php?topic=273633.msg644240#msg644240 nice images posted by c_cld
Galactic Jets from Radio Galaxy Zoo
see also 6.6 radio data and Radio Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6&comment_id=53d8bb14db90c7673f001035
Just Chat p42 Jean Tate http://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ0000v89 "J1649+26: A Grand-Design Spiral with a Large Double-Lobed Radio Source - Mao et al. is a ~month-old RGZ Talk thread on this galaxy. It appears - with 'home grown' FIRST contours - on p8 of the Hourglass sources associated with spiral galaxies thread. Its ARG ID is ARG0001xiw. I do not know if it has a GZ ID, but it was in GZ1, so it may appear in the GZ forum; its SDSS name is SDSS J164924.01+263502.5; here is the DR10 version:"
Can spiral galaxies have relativistic jets?
Website: Strange Galaxy Perplexes Astronomers by Bill Keel 2 December 2014
https://public.nrao.edu/news/pressreleases/strange-galaxy-perplexes-astronomers "With the help of citizen scientists, a team of astronomers has found an important new example of a very rare type of galaxy that may yield valuable insight on how galaxies developed in the early Universe "Spiral DRAGNs," an acronym for the technical description, "Double-lobed Radio sources Associated with Galactic Nuclei.J1649+2635 is unusual not only because of its jets, but also because it is the first example of a "grand design" spiral galaxy with a large "halo" of visible-light emission surrounding it.
Hubble: Radio jet found in spiral galaxy. http://www.nasa.gov/image-feature/goddard/2016/hubble-finds-misbehaving-spiral http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001ti0"
jets from an elliptical galaxyTalk: Radio Galaxy and SDSS http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00012ms?page=1 posted by C_cld
Radio Galaxy reveals the relativisitic jets of an elliptical galaxy.
Forum OOTD: Wednesday, 2 July, 2014: Depth by JeanTate http://www.galaxyzooforum.org/index.php?topic=281941.0 "The red contour lines are from a FITS I downloaded from SkyView, using the VLA FIRST (1.4 GHz) survey, and which I processed using Python (some details in the RGZ Talk thread How to decide the 'zero point' for radio contours?). The mystery? The apparent source of the strong radio emission seen by FIRST is SDSS J103250.26+155116.8, which SDSS thinks is a STAR. As we have learned, over in Radio Galaxy Zoo, these often turn out to be quasars, far in the background (z>~1.5). In this case, the mystery isn't just whether that 'star' is, in fact, the source of the radio emission; it's also what sort of emission it is! Is it #corejet? Or a #wat? Or something else?"
VLA radio image of 3C 465Note: tail here refers to the tail of a galactic jet, not a tidal tail of a disturbed galaxy
Blog: Making Radio Galaxies in a Computer August 28, 2014 by twjastro http://blog.galaxyzoo.org/2014/08/28/making-radio-galaxies-in-a-computer/ " The jet also creates a sonic boom or bow shock in front as it moves forward. A close look at the jet in this figure also reveals that the jet actually does not remain straight as it moves forward. The end of the jet turns out to be unstable, so soon after launch begins to ‘flap’ or wobble. ..when strongly bent jets are seen in a radio galaxy it is a strong clue that the motion of the galaxy is supersonic in relation to its environment."
Blog: Tailed Radio Galaxies: Cometary-Shaped Radio Sources in Clusters of Galaxies (Part 1) by Heinz Andernach January 2014 http://blog.galaxyzoo.org/2014/01/16/more-information-on-tailed-radio-galaxies-part-1/ " authors seem to converge on the compromise idea that the combination of high ambient density and modest speeds of the host galaxy with respect to the ambient medium are able to produce the bends, but in this blog I would rather like to concentrate on the variety of morphologies shown by these objects in order to help RGZ users to classify them."
Blog: More Information on Tailed Radio Galaxies (Part 2) by Heinz Andernach January 2014 http://blog.galaxyzoo.org/2014/01/17/more-information-on-tailed-radio-galaxies-part-2/ projection of the inner jets along the line of sight
NASA Announces Discovery of Assault by a Black Hole http://science.nasa.gov/science-news/science-at-nasa/2007/18dec_assault/ " 3C321. Two galaxies are in orbit around one another. A supermassive black hole at the core of the system's larger galaxy is spewing a jet in the direction of its smaller companion." Death Star Galaxy , not so impressive in SDSS http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237665374403821653
Centaurus A
A nearby active galaxy, with relativistic jet and associated radio clouds. In the southern hemisphere, so not visible in SDSS
Centaurus A in visible light"Image taken by the Wide Field Imager attached to the MPG/ESO 2.2-meter telescope at the La Silla Observatory."
Centaurs A in near infra-red light, showing remains of absorbed galaxyCredit: ESO/Y. Beletsky
"Dinner for Centaurus A This image of the central parts of Centaurus A reveals the parallelogram-shaped remains of a smaller galaxy that was absorbed about 200 to 700 million years ago. ESO/Y. Beletsky - http://www.eso.org/public/images/eso0944a/ This image of the central parts of Centaurus A reveals the parallelogram-shaped remains of a smaller galaxy that was gulped down about 200 to 700 million years ago. The image is based on data collected with the SOFI instrument on ESO’s New Technology Telescope at La Silla. The original image, obtained by observing in the near-infrared through three different filters (J, H and K) was specially processed to look through the dust, providing a clear view of the centre. The field of view is about 4 x 4 arcminutes."
Centaurus A composite image of visible and radio"A composite image showing the size of the radio glow from the galaxy Centaurus A in comparison to the full Moon. The white dots in the sky represent not stars but background radio sources — galaxies like Centaurus A in the distant universe. The foreground antennas are of CSIRO's Australia Telescope Compact Array, which gathered the data for the Centaurus A image." https://en.wikipedia.org/wiki/File:Moon_centaurus_th.jpg
Centaurus A This galaxy is large and visible in the southern sky, if we could see in radio waves, it would be the size of your little fingernail at arms length. The relativisitic jet would be too small to see.
"Colour composite image of Centaurus A, revealing the lobes and jets emanating from the active galaxy’s central black hole. This is a composite of images obtained with three instruments, operating at very different wavelengths. The 870-micron submillimetre data, from LABOCA on APEX, are shown in orange. X-ray data from the Chandra X-ray Observatory are shown in blue. Visible light data from the Wide Field Imager (WFI) on the MPG/ESO 2.2 m telescope located at La Silla, Chile, show the background stars and the galaxy’s characteristic dust lane in close to "true colour"."ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray) - http://www.eso.org/gallery/v/ESOPIA/Galaxies/phot-03a-09-fullres.tif.html
Forum: Saturday, October 12th, 2013: Quasars: Astronomical lighthouses by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281423.0 quasars, blazars, jets
PKS 1127-145 http://apod.nasa.gov/apod/ap020208.htmlForum: Dec 21, 2012 Galactic alignment, or End Of The World day, again. by Budgieye http://www.galaxyzooforum.org/index.php?topic=280566.0 either a galactic jet from the black hole in the centre of the Milky Way galaxy will hit Earth, with Earth being sucked into the black hole, earthquakes, various unknown planets hitting earth, and government conspiracy cover-up or, we experience spiritual enlightenment, take your pick.
Website: Volunteer black hole hunters as good as the experts http://www.icrar.org/news/news_items/black-hole-hunters "In one year, the citizen scientists managed to match 60,000 radio sources to their host galaxy"
NASA Xray and radio image in Pictor Ahttp://www.nasa.gov/mission_pages/chandra/blast-from-black-hole-in-a-galaxy-far-far-away.html http://www.nasa.gov/mission_pages/chandra/blast-from-black-hole-in-a-galaxy-far-far-away.html
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Budgieye
moderator
3.7 Black holes and Super Massive Black Holes ( SMBH ) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
Budgieye's comment: You can't see black holes in astronomy images. Any black areas that you can see are usually overexposure artifacts. Anyway, black holes would be very small, less than the size of a pixel. Also, black holes are usually surrounded by hot disks of bright gas. Nearly every galaxy has a black hole in its nucleus. Black holes don't have enough mass to "suck in " surrounding galaxies, since black holes comprise only about 0.1% of the mass of its galaxy.
Yes, we think most galaxies have supermassive black holes, but not all. There are certainly some dwarf galaxies that show no evidence for having a black hole at their center (and others that do).
Talk: No Black Hole? reply by Dr Simmons https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0002f4x?page=1&comment_id=58ba39857d25c7008d0002f4
However, deciding a galaxy has no black hole takes a lot of work and many follow-up observations. It's impossible to rule out the presence of a black hole just by looking at a GZ image. Black holes, even very massive ones, don't take up much space, so when we observe a galaxy in our surveys even a supermassive black hole in that galaxy takes up much, much less space than a single pixel - and there would be plenty of room in that pixel for stars and other bright things to mask the presence of a black hole in our observations.Talk: Gamma Ray Burst GRB location http://talk.galaxyzoo.org/#/subjects/AGZ0001v1g http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237655369831481411 nothing to see in image, bursts only last a minute
ejected black hole or LBV + SN
Talk: Ejected black hole? or luminous blue variable star (LBV) erupting for decades since 1950, followed by a Type IIn SN in 2001?http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ila?page=1&comment_id=546ee14f415ac12f66000ee4 http://mnras.oxfordjournals.org/content/445/1/515
Talk: Neutron star http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ000121a?page=1&comment_id=5469ab5f415ac10e43000004 outside links to neutron star neutron star in center of Crab Neblua, in Google Sky, with X-ray telescope. There are two stars close together, I think the neutron star is to the left.
https://www.google.com/sky/#latitude=22.014131341325147&longitude=-96.36564409255982&zoom=16&Spitzer=0.00&ChandraXO=100.00&Galex=0.00&IRAS=0.00&WMAP=0.00&Cassini=0.00&slide=8&mI=1&oI=4 It is just outside the dr10 footprint. Isolated Neutron star above is also out the of the Dr10 footprint. Most Milky Way objects are, since SDSS avoids the Milky Way.Blog: How to find black holes? February 6, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/02/06/how-to-find-black-holes/ "The first step in trying to understand the connection between black holes and galaxies is finding them. But black holes are, well, black. In fact, you might say their blackness is their most defining feature.
So, how do you find them? It turns out that when they’re feeding on infalling gas and dust, a massive black hole can turn into the brightest object known in the whole universe – a quasar!
As the gas and dust falls towards the black hole, it settles into a disk around it, and as it moves in, friction in the disk heats up all the matter in it to such temperatures that it stats shining. In this way, black holes can be very bright, or quite dim, depending in part on how much matter they are munching on.
There are many ways to find feeding black holes and for the Galaxy Zoo paper on black hole growth, we used the emission lines that AGN (active galactic nuclei, or feeding black holes) cause when the light coming from the accretion disk shines on some other gas floating around in the host galaxy and makes that light in turn emit light with a very particular signature that we can detect by carefully analysing the spectra."Blog: Galaxy Zoo: Are Bars Responsible for the Feeding of Supermasssive Black Holes Beyond the Local Universe? October 6, 2014 by ec2250 Edmond Cheung? http://blog.galaxyzoo.org/2014/10/06/galaxy-zoo-are-bars-responsible-for-the-feeding-of-supermasssive-black-holes-beyond-the-local-universe/ "bars are not the primary fueling mechanism for supermassive black hole growth for the last 7 billion years."
Blog: IFRS: The first supermassive black holes? by Ray Norris January 2014 http://blog.galaxyzoo.org/2014/01/24/ifrs-the-first-supermassive-black-holes/ "some bright radio sources don’t have any infrared sources at all associated with them, and they have been given the hashtag #ifrs, for Infrared-Faint Radio Sources. So what are these IFRS?"
Blog: Black holes – why do galaxies care, anyway? January 28, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/01/28/black-holes-why-do-galaxies-care-anyway/ "at the centers of most, if not all galaxies, there is a supermassive black hole. We call these black holes “supermassive” to distinguish them from stellar mass black holes that were formed in the deaths of massive stars. These supermassive black hole can be as heavy as a million or even a billion solar masses....So you might think that these enormous black holes can wreak havoc in their host galaxies. However, galaxies are even bigger, much bigger than these black holes. In general, the black hole makes up about 0.1% of the mass of its host galaxy making really just a drop in the bucket....But why is the mass of the black hole always some fraction of the galaxy mass (or to be more precise, bulge mass)? How does the black hole even know how big the galaxy is? Why does the mass of the black hole correlate with the mass of the galaxy bulge (the M-sigma relation)?"
Blog: Observing, Spanish style November 2008 http://blog.galaxyzoo.org/2008/11/12/observing-spanish-style/ he giant 30m radio dish of the IRAM observatory above Granada for not one, but two Zoo projects mergers and black holes in ellipticals. looking for the signature of carbon monoxide (CO) in the galaxies.
Publication:
Galaxy Zoo: The Fundamentally Different Co-Evolution of Supermassive Black Holes and Their Early- and Late-Type Host Galaxies by Schawinski, Kevin; Urry, C. Megan; Virani, Shanil; Coppi, Paolo; Bamford, Steven P.; Treister, Ezequiel; Lintott, Chris J.; Sarzi, Marc; Keel, William C.; Kaviraj, Sugata; Cardamone, Carolin N.; Masters, Karen L.; Ross, Nicholas P.; Andreescu, Dan; Murray, Phil; Nichol, Robert C.; Raddick, M. Jordan; Slosar, Anže; Szalay, Alex S.; Thomas, Daniel; Vandenberg, Jan
http://adsabs.harvard.edu/abs/2010ApJ...711..284S looking at AGN, in the early universe, small SMBH are more active (ie they are feeding on gas and stars) In the later universe, large SMBH are more active (feeding on results of mergers?)Forum: http://www.galaxyzooforum.org/index.php?topic=275042.msg548545#msg548545 GRB 080319B was a remarkable gamma-ray burst (GRB)
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Budgieye
moderator
**3.8 Green compact starburst,Peas ** https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
Small round galaxies with extreme rates of star formation. They have lots of large blue stars which live fast and die young, so there are always many supernova explosions, which have hot oxygen which then emits lots of visible light. In SDSS colour filters, these galaxies appear green, so they look like "green peas" . Closer galaxies appear as "blue peas".
image from "Cardamone Peas" by Richard Nowell. Original uploader was Richard Nowell at en.wikipedia - http://commons.wikimedia.org/wiki/File:Cardamone_Peas.jpg#/media/File:Cardamone_Peas.jpg
Forum: ** color survey** by laihro 2008 http://www.galaxyzooforum.org/index.php?topic=270329.msg130560#msg130560 a beautiful poster of blue OIII objects. The emission intensity is divided into the levels high, medium and low
Talk: The Green Pea Galaxies by RickN http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000zvt The thread in Talk for discussions about peas.
Forum: Friday 21 May 2010 Peas! Blue, purple, white, green and red http://www.galaxyzooforum.org/index.php?topic=277749.msg464364#msg464364 images and spectra of different coloured "peas"
Forum: What is this green colored thingy? http://www.galaxyzooforum.org/index.php?topic=8926.msg88388#msg88388 http://www.galaxyzooforum.org/index.php?topic=8926.msg87612#msg87612 The first thread in which the connection started to be made. ... the 'green thingy' had an image of a GP. Its spectrum (587728917372993708) showed a huge OIII peak"
Forum: Celebratory list; 106 [peas] and counting! by Rick Nowell Dec 2007, March 2008
http://www.galaxyzooforum.org/index.php?topic=3638.msg121450#msg121450Talk: Another green pea? (2017) by planetaryscience https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0002osb?page=1&comment_id=59cacce5b94190009b000ba2 It looks like a green pea, but no spectrum.
Forum OOTD: Saturday the fifth of July Green Pea Galaxies & The Early Universe. by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=281946.msg661737#msg661737 " The process of re-ionization is theorised to have taken
place between 150 million and one billion years after the Big Bang. Finding suitable candidates in the local
universe has proved difficult, as astronomers are looking for galaxies that emit Lyman Continuum photons (LyC)."Forum: Numerically Sorted Peas March 4 2008 by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=270747.0
Forum: OIII Galaxy Catalog (Part One, z=0 to 0.9) by Starry Nite
http://www.galaxyzooforum.org/index.php?topic=3638.msg115486#msg115486Forum: Peas Project July 8 2008 by ccardamone http://www.galaxyzooforum.org/index.php?topic=270633.615
List of Carrie's 80 Peas http://www.galaxyzooforum.org/index.php?topic=270633.msg357085#msg357085 http://www.galaxyzooforum.org/index.php?topic=270633.msg357923#msg357923Forum: Post Starburst galaxies http://www.galaxyzooforum.org/index.php?topic=277679.0 with spectra
Talk: a post starburst galaxy http://talk.galaxyzoo.org/#/subjects/AGZ0005dfk
Forum thread: Powder puff galaxies http://www.galaxyzooforum.org/index.php?topic=278012.0 small, star-forming
Blog: The Peas – Now detected in Radio! July 12, 2011 http://blog.galaxyzoo.org/2011/07/12/the-peas-now-detected-in-radio/
" proposal that had just been accepted at the Giant Metrewave Radio Telescope (GMRT) to follow up on the Peas with radio observations. Now the observations are in, and we have successfully detected the Peas at radio wavelengths!...These relativistic electrons emit a type of emission, synchrotron radiation, that is visible in radio wavelengths. ...These new observations suggest a magnetic field in the peas similar to that of the Milky Way. Because galaxies are thought to build up their magnetic fields over time, it is surprising to see such a large magnetic field in such a young galaxy...suggest that galaxies like the Peas (and the Lyman Break Galaxies), may start out early in their life with very large magnetic fields."Blog: New Green Pea study in the works May 10, 2011 http://blog.galaxyzoo.org/2011/05/10/new-green-pea-study-in-the-works/ "other scientists started to take a keen interest in them. One group working on the peas independently of the Galaxy Zoo team are Ricardo Amorin and collaborators from the Instituto de Astrofisica de Andalucia for SEO Services and Galaxies in Granada, Spain. They also analyzed the green pea galaxies in particular to study the abundance of heavy elements produced by the death of stars that pollute the gas in galaxies and can give clues to the evolution of galaxies...They want to see if there are underlying old stars present in the peas which would suggest that the peas underwent previous bursts of star formation. If there are no such old stars, it would further strengthen the idea that the peas are really primordial galaxies in the old Universe – living fossils found in the Zoo."
Blog: Radio Peas September 8, 2010 http://blog.galaxyzoo.org/2010/09/08/radio-peas/ "Why do we want to search for radio signals from the Peas? The radio emission comes from remnant supernovae which can accelerate relativistic electrons that emit synchrotron radiation. So when we are detecting star forming galaxies in radio emission, we are finding signatures from these supernovae, which tell us about the stars that live (or lived) in the galaxy. Therefore, using the radio emission we can trace recent star formation activity in the galaxy... they are the closest analogues to a class of vigorously star forming galaxies found in the early universe (known as Lyman Break Galaxies)" but closer and easier to study
Blog: The latest on the peas – do they lack metals? April 29, 2010 by Kevin & Carie http://blog.galaxyzoo.org/2010/04/29/the-latest-on-the-peas-do-they-lack-metals/ " paper, written by Ricardo O. Amorín, E. Pérez-Montero and J.M. Vílchez (all at the IAA-CISC), follows up on one of the aspects of the peas: the metallicity (amount of elements other than hydrogen and helium) that are polluting the gas in the peas. These elements (or metals, as astronomers confusingly say) are generated in supernovae, so the metallicity,and the ratios of specific elements, can give astronomers some idea of how “evolved” a galaxy is. The more metals, the more supernovae must have gone off and polluted the gas..... This is definitely different from what we concluded – .. if they are right, this makes the peas even more exceptional, since they don’t fit in with normal galaxies in our old, evolved Universe, and underscores their role as “living fossils” since the peas are more like primordial galaxies than evolved ones. "
Blog: Finishing off the Peas Documentary January 22, 2010 http://blog.galaxyzoo.org/2010/01/22/finishing-off-the-peas-documentary/
Blogs: [pea spectra in Chile] Nov 2009 http://blog.galaxyzoo.org/2009/11/14/peas-please-me/ four of the seven i-Pea candidates that we managed to observe are emission line objects at the redshift we expected our selection to give, i.e. they are Peas! http://blog.galaxyzoo.org/2009/11/14/here-we-go/ The SDSS Peas that Carrie studied were green in the SDSS colour images because they were bright in the r-band, actually the red region of the visible spectrum http://blog.galaxyzoo.org/2009/11/11/on-the-mountain/ http://blog.galaxyzoo.org/2009/11/10/pea-hunting-preamble/
Blog: Pea Hunting preamble November 10, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/11/10/pea-hunting-preamble/ " a mission to hunt for more distant counterparts to the ‘Peas’) which were first identified by Galaxy Zoo participants."
Blog: Peas in the Universe, Goodwill and a History of Zooite Collaboration on the Peas Project July 7, 2009 by Rick Nowell http://blog.galaxyzoo.org/2009/07/07/peas-in-the-universe-goodwill-and-a-history-of-zooite-collaboration-on-the-peas-project/ "At that point, Rick began to make lists of all the “peas” in the thread. “I was bored,” he claimed later. But it was a very impressive list, 39 peas with those particular emission lines. He later deleted the “original original” and made a detailed, professional list in its own topic...Learning to read spectra wasn’t part of everyday zoo life at that point, and it took some of us, definitely including me, a while to get the idea."
Blog: The Peas are online by Carie http://blog.galaxyzoo.org/2009/07/27/the-peas-are-online/ link to paper
Blog: The First Volunteer-inspired Galaxy Zoo Paper is Submitted! by Carie April 2009 http://blog.galaxyzoo.org/2009/04/14/the-first-volunteer-inspired-galaxy-zoo-paper-is-submitted/ The ‘Peas’ were discovered by users right here in Galaxy Zoo who noticed a strange class of small green galaxies at redshifts near z=0.2. A dedicated group of volunteered collected a sample of these galaxies.
Blog: Hunting Programs for all by waveney October 2008 http://blog.galaxyzoo.org/2008/10/27/351/ wrote computer code for 3 Hunts, Mergers, Peas and Irregulars
Blog: Give Peas a Chance by Carie & Kevin August 2008 http://blog.galaxyzoo.org/2008/08/19/give-peas-a-chance/ For the Peas powered by star formation, we can look at how many stars are forming each year. For comparison, Milky way’s star formation rate is around 1-2 solar masses per year. The typical Pea from our sample seems to have a star formation rate nearly 5 times higher than this, and for many Peas the rate at which they form stars is up to 40 times larger. Because the Peas are so much smaller then the Milky Way, these are incredibly large star formation rates.
Publication: Galaxy Zoo Green Peas: discovery of a class of compact extremely star-forming galaxies by Cardamone, Carolin; Schawinski, Kevin; Sarzi, Marc; Bamford, Steven P.; Bennert, Nicola; Urry, C. M.; Lintott, Chris; Keel, William C.; Parejko, John; Nichol, Robert C.; Thomas, Daniel; Andreescu, Dan; Murray, Phil; Raddick, M. Jordan; Slosar, Anže; Szalay, Alex; Vandenberg, Jan http://adsabs.harvard.edu/abs/2009MNRAS.399.1191C. Discovered by volunteers in the Galaxy Zoo project. Small, bright green due to oxygen emission (OIII), and high rates of star formation. Located at an intermediate distance between Luminous Blue Compact Galaxies, and high-redshift ultraviolet-luminous galaxies, e.g. Lyman-break galaxies
Forum: Saturday the 26th of January 2013 Six Extreme Peas by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=280606.0 "A new paper on the Peas was submitted this month. Entitled:"The Origin and Optical Depth of Ionizing Radiation
in the "Green Pea" Galaxies","Pea galaxies. (started in 2018)
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/554022
the latest finds and publications.
Blue compact starburst , OIII objects
Hashtag: #blue
blue starforming
Talk: Two peas in two pods. Two similar galaxies with a "pea" in SDSS at z=0.003 and in Hubble at z=1.294 http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0001d9e
big values on y-axis
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237665025445462053
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237665025445462051
Forum: The most weird OIII objects http://www.galaxyzooforum.org/index.php?topic=270329.0
Talk: Cometary galaxy by Prof Lintott http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0000zze?page=1&comment_id=542bd3288663b712eb00000c a blue pea, with spectrum and star-forming area
Blog: Galaxy Zoo in der Süddeutschen Zeitung Dec 2010 http://blog.galaxyzoo.org/2010/12/25/galaxy-zoo-in-der-suddeutschen-zeitung/ citizen science and "peas"
Forum: Two views of starburst galaxy NGC 1313 , which is outside the SDSS footprint. http://www.galaxyzooforum.org/index.php?topic=8436.msg633572#msg633572
Publication: Galaxy Zoo: a sample of blue early-type galaxies at low redshift by Schawinski, Kevin; Lintott, Chris; Thomas, Daniel; Sarzi, Marc; Andreescu, Dan; Bamford, Steven P.; Kaviraj, Sugata; Khochfar, Sadegh; Land, Kate; Murray, Phil; Nichol, Robert C.; Raddick, M. Jordan; Slosar, Anže; Szalay, Alex; Vandenberg, Jan; Yi, Sukyoung K. http://adsabs.harvard.edu/abs/2009MNRAS.396..818S A catalogue 204 blue early-type galaxies with intense blue colour indicating high rates of star formation. Tend to be found in low density environments. Have a high metal content
starburst
http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=587739647274778738
Forum: Sunday 23rd September 2012: an old gem IC 2520 IC2520 by Alice http://www.galaxyzooforum.org/index.php?topic=280422.0 http://www.galaxyzooforum.org/index.php?topic=280422.0 also Kevin http://www.galaxyzooforum.org/index.php?topic=7299.0 " a massively starforming merger producing stars at such a prodigious rate that the dust from all that star formation is obscuring large parts of the galaxy. It's a great example of a merger-induced starburst."
Forum: Sunday 8th July 2012: Starforming peas by Alice http://www.galaxyzooforum.org/index.php?topic=280251.0 "Another paper has come out about the peas - Complex gas kinematics in compact, rapidly assembling star-forming galaxies. This means, in Alician and hopefully clearer language, "complicated motions of gas in small dense galaxies whose star formation is going crazy""
Forum: Another great Markarian, we need a thread for these. http://www.galaxyzooforum.org/index.php?topic=10047.0 "NGC2214 says "The Markarian catalog was produced by Benyamin Markarian and colleagues (I claim today's award for obviousness) at the Byurakan Observatory in Armenia. It included objects which were unusually bright in the near-ultraviolet, as seen in objective-prism photographs from their Schmidt telescope. Thus the catalog of 1500 objects includes Seyfert galaxies (the first large sample of these), starbursts, star-forming knots in bright galaxies, and BL Lacertae objects. I have a reformatted version of the final catalog provided by once-Soviet colleagues here. Since the Byurakan astronomers continued similar work with a different photographic setup in the Second Byrurkan Survey or SBS, the original Markarian project is now sometimes known as the FBS."
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Budgieye
moderator
3.9 Gravitational lenses and SpaceWarps https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
Collection http://talk.galaxyzoo.org/#/collections/CGZL00000h #lens drphilmarshall SCIENTIST
Collection buriedrings - Collection ID: CSWS000i10 http://talk.spacewarps.org/#/collections/CSWS000i10
Easy links
Spotter's Guide to Gravitational Lenses http://spacewarps.org/#/guide
My Easy Explanation of Strong Gravitational Lenses https://talk.spacewarps.org/#/boards/BSW0000002/discussions/DSW0000302
Forum: Zooite Guide to Strong Gravitational Lenses http://www.galaxyzooforum.org/index.php?topic=275811.0 by Budgieye 2008 A pretty and easy guide, but the forum is locked and broken links cannot be repaired.
Zooniverse video on You-Tube : https://www.youtube.com/watch?v=M5v5FjvugLI Phil Marshall's Galaxy in a Wineglass "This is wonderful, entertaining, and simple, and a must-see for everyone getting started on gravitational lenses 2 min
Example of a bright gravitational lens. The center red galaxy is lensing the bright white-blue galaxy behind it into an arc.
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237657628454551760 SDSS J120602.08+514229.5
The lensing galaxy is red at z=0.4
The lensed galaxy is a white arc at z=2 with a radius of 5" (0.068 arcmin)
"Discovery of A Very Bright, Strongly-Lensed z=2 Galaxy in the SDSS DR5"
2008 "The Clone" CSWA 6http://arxiv.org/abs/0809.4475
588013382206357664
SDSS J120602.09+514229.5posted by Chipper Q and gumbosea
Spacewarps Zoo formerly Lens Zoo 2013
(not currently active) (name changed because Thomas J joking asked "Who is Len?"
http://lenszoo.files.wordpress.com/2012/07/zurich_2012-07-14_group-photo.jpg
Forum: Thurs July 26, 2012 A new Zoo: Lens Zoo by Budgieye http://www.galaxyzooforum.org/index.php?topic=280302.msg611478#msg611478 report from the Irchel Campus, University of Zurich, attending the Lens Zoo Workshop, held 14 & 15 July, 2012.
Blog: Lens Zoo is Coming! by Phil, Aprajita, Anupreeta & the Lens Zoo team. May 3, 2012 http://blog.galaxyzoo.org/2012/05/03/lens-zoo-is-coming/
Talk in Spacewarps http://talk.spacewarps.org/#/recent
SpaceWarps Talk: The splitting of light from a quasar though a lens. http://talk.spacewarps.org/#/boards/BSW0000004/discussions/DSW00007m5
Zooniverse blog: http://blog.zooniverse.org/2013/05/08/new-project-join-the-search-for-space-warps/
Zooniverse blog: http://blog.zooniverse.org/2013/06/22/live-from-zoocon/ "Aprajita Verma from Oxford and from Space Warps, the newest Zooniverse astronomy project. ...SpaceWarps is much needed – LSST, the next generation of survey telescope, will produce something like 10000 galaxy scale lenses. It’s designed to map a very wide area of sky, which is perfect for finding rare things like lenses – and this will produce a lot of work as traditional lens hunting is very labour intensive. Not only do they need to be found, but they then need to be modeled."
Blog: Engage! May 8, 2013 by Phil Marshall http://blog.spacewarps.org/2013/05/08/engage/ Space Warps is live
Forum: Wednesday, 22nd May, 2013: Have You Tried Space Warps Yet? by JeanTate http://www.galaxyzooforum.org/index.php?topic=280796.0
History of lensing, and team http://spacewarps.org/#/about
Blog: Space Warps: New Candidate Gravitational Lenses in the CFHTLS! http://blog.spacewarps.org/ "you helped discover 29 new candidate gravitational lenses (and another 30 objects that might turn out be lenses). Nice work, people!"links to two papers in preparation (2015)
http://blog.spacewarps.org/2015/04/23/trailer-results-from-cfhtls/
Zooniverse: SpaceWarps BBC Stargazing Live 2014
Brian Cox & Dara O Briain at Jodrell Bank Observatory, while radio data from the red ring was collected live while on air.
http://daily.zooniverse.org/tag/spacewarps/
SpaceWarps website:
http://spacewarps.org/?_ga=1.123312589.711441289.1371287491#/about . the science
http://blog.zooniverse.org/2014/01/07/space-warps-for-bbc-stargazing-live/
Stargazing Live 2014 Candidates http://spacewarps.org/
Zooniverse: http://blog.zooniverse.org/2014/01/07/space-warps-for-bbc-stargazing-live/
Zooniverse: http://blog.zooniverse.org/2014/01/09/stargazing-live-the-results-are-in/
http://talk.spacewarps.org/#/subjects/ASW0009io9
Red ring scan in radio waves by Jodrell Bank Image | Posted on January 10, 2014 by mrniabocBlog: http://daily.zooniverse.org/2014/01/10/results-from-stargazing-live/ "The image above was taken using the eMERLIN array of radio telescopes, which included the Lovell Telescope at Jodrell Bank Observatory where BBC Stargazing Live is filmed. It shows the arc of a lensed galaxy which is over 10 billion lightyears from Earth! This lens event was discovered by our volunteers on Space Warps during this year’s series of Stargazing Live shows."
BBC Stargazing Live 2015 showed the paper just before being submitted. J. E. Geach et al The Red Radio Ring: a gravitationally lensed hyperluminous infrared radio galaxy at z=2.553 discovered through citizen science http://arxiv.org/abs/1503.05824
http://daily.zooniverse.org/2014/01/17/daily-fail/ incorrect reporting by the media
Look at the blob! January 24, 2014 by chrislintott http://blog.spacewarps.org/2014/01/24/look-at-the-blob/ "Having recovered somewhat from the madness that was BBC Stargazing Live, the SpaceWarps team have been continuing to work through the marvelous data supplied by warp hunters since the relaunch of the project. "
website: http://www2.ifa.hawaii.edu/newsletters/article.cfm?a=390&n=33
http://www2.ifa.hawaii.edu/newsletters/images/28slacsdatamosaic.jpg
Website: SLACS: The Sloan Lens ACS Survery http://www2.ifa.hawaii.edu/newsletters/images/28slacsdatamosaic.jpg
Blog: Using Space Warps to Discover and Weigh Galaxies by Brooke Simmons 2013 http://blog.galaxyzoo.org/2013/05/14/space-warps-discover-weigh-galaxies/ "Co-lens-experts Phil Marshall and Aprajita Verma joined us during this hangout to describe how they use gravitational lenses to weigh galaxies"
Blog: eGZeLENS update: HST pre-imaging by Phil Marshall January 2009 http://blog.galaxyzoo.org/2009/01/16/egzelens-update-hst-pre-imaging/ "I am involved with several semi-automated lens searches, using data from the Hubble Space Telescope (the HAGGLeS project) and also the CFHT legacy survey (the SL2S project). Several years ago some colleagues and I were joking about how one could find lenses at a hypothetical classification website called “www.lensornot.com” – imagine how excited I was to find you all doing this already in the galaxy zoo...The galaxy zoo is so big that it contains a significant number of objects that are very good at mimicking gravitational lenses."
Blog: eGZeLENS — The extensive Galaxy Zoo LENsing Survey By Aprajita Verma July 2008 The extensive Galaxy Zoo LENsing Survey http://blog.galaxyzoo.org/2008/07/12/egzelens-the-extensive-galaxy-zoo-lensing-survey/ "When Kevin Schawinski first highlighted the Gravitational Lens forum to me, I have to say I was astounded and impressed by the sheer volume of activity and interest in identifying potential gravitational lenses by the Galaxy Zoo community...involved with a number of observational projects that use integral field spectrographs (IFS)...it takes an image of an object but the light that reaches each pixel of that image is simultaneously dispersed so that we can measure the spectrum of the object in each pixel that it covers.." one-step, one image, which also give kinematics ie internal motion of galaxy
Zooniverse Letters: http://letters.zooniverse.org/ In-house publication of science results
Collaborative gravitational lens modelling using SpaghettiLens by Capella05 2014
galaxy cluster cl0024http://apod.nasa.gov/apod/image/0705/cl0024dark_hst.jpg
spacewarp around cl0024http://www.lsst.org/files/img/Warp0024small.jpg
from website The Large Synoptic Survey Telescope : LLST http://www.lsst.org/lsst/ Millions of images will appear in the future, who will analyze them?
Forum: QSO H1413 + 117. http://www.galaxyzooforum.org/index.php?topic=275042.msg430650#msg430650 Cloverleaf Quasar. a single quasar split into four images,due to lensing
Talk: Quasar pair or lensed https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ000167u?page=1&comment_id=588f64c97d25c73f860001ca
Talk: Quasar pair or lensed by C_cld
http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ000167u?
page=1&comment_id=54ae6d0d9cd1180b9f0004c7
a list of paired quasars with images and spectraSDSS website; SQLS: Lens list Newly discovered lensed quasars http://www-utap.phys.s.u-tokyo.ac.jp/~sdss/sqls/lens.html
Talk: Talk: distant arcs and the Einstein radius http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0001f7cby vrooje ADMIN, SCIENTIST The Universe is smaller at higher redshift, and because of this the way the apparent size of a galaxy changes as a function of redshift is a little non-intuitive. Galaxies of the same intrinsic physical size appear smallest at about redshift 1-2, and then start to appear larger as you go to really high redshift. It's a little jargony but the Wikipedia description of angular diameter distance may help. Also contains many Hubble images of arcs at different redshift by C-Cld
Forum: Wednesday, 8th February, 2012: More Strong Lenses in SDSS by JeanTate http://www.galaxyzooforum.org/index.php?topic=279895.0 comment by Budgieye "No matter how good we get, we can only see the big thick ones in SDSS"
Einstein Cross in SDSS image
http://skyserver.sdss.org/dr12/en/tools/explore/summary.aspx?id=1237678823567065216
Einstein Cross around a spiral (!!!) nucleus.Forum; Thursday, 8 November 2012: A New Einstein Cross Gravitational Lens by Jean Tate http://www.galaxyzooforum.org/index.php?topic=280490.0 an anomalous spike in a spectrum led to finding exciting lens in a spiral galaxy nucleus. CGCG 378-015 CGCG78-015 2237+0305 Q2237+0305 also known as Huchra's Lens
Forum: Wednesday, 19th September, 2012: The Next Galaxy Zoo by JeanTate http://www.galaxyzooforum.org/index.php?topic=280414.0 red arc in CFHT
Euclid Space Telescope (launch date 2020?) http://www.euclid-ec.org/ will look for gravitational lenses which help us understand dark matter and dark energy, accelerating expansion of the Universe,the past, present and future evolution of Universe, 1,200 scientists from 14 countries. Will produce a huge number of images of the whole sky with equal resolution of the Hubble Space Telescope. Will look at a billion galaxies.
Euclid - Challenge the Machines
https://www.zooniverse.org/projects/hughdickinson/euclid-challenge-the-machines/talk/1609
The goal of this project is to test if humans are still better at identifying gravitational lenses than the machine learning algorithms of Euclid. The Euclid telescope, due for launch in 2021, will perform an imaging and slitless spectroscopy survey over half the sky, to map baryon wiggles and weak lensing. During the survey Euclid is expected to resolve 100,000 strong gravitational lens systems.Posted
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Budgieye
moderator
3.10 CMB (Cosmic Microwave Background) Big Bang, Galaxy clusters https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3
Hashtag: #cluster cluster
Dark Matter
Forum: Monday, 23rd September, 2013: Cepheids: Our most beloved stars. by fatha731 http://www.galaxyzooforum.org/index.php?topic=281238.0 "Type II Cepheids are used to establish the distance to the Galactic center, globular clusters, and galaxies."
Talk: distant arcs and the Einstein radius http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0001f7c?page=1&comment_id=55479fdea77a1b1f33000a6e "The Universe is smaller at higher redshift, and because of this the way the apparent size of a galaxy changes as a function of redshift is a little non-intuitive. Galaxies of the same intrinsic physical size appear smallest at about redshift 1-2, and then start to appear larger as you go to really high redshift."
Talk: A pair of high velocity stars measure Milky Way dark matter halo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001yra?page=1&comment_id=57285b85821e1c0098003025
Forum Ultra Deep Image (from Hubble) http://www.galaxyzooforum.org/index.php?topic=280006.0 thousands of distant galaxies in a small bit of sky
Forum: Multiple Galaxies in a Deep Field http://www.galaxyzooforum.org/index.php?topic=275528.0
Forum: Re: z and velocity of recession by Edd http://www.galaxyzooforum.org/index.php?topic=273059.msg217557#msg217557
Forum: Any quasar with z>1 is going away from us in excess of c ? http://www.galaxyzooforum.org/index.php?topic=277872.msg470977#msg470977
Talk: Gamma Ray Burst GRB location http://talk.galaxyzoo.org/#/subjects/AGZ0001v1g http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237655369831481411 nothing to see in image, bursts only last a minute
Forum: ABELL catalogue http://www.galaxyzooforum.org/index.php?topic=278412.0 Clusters of galaxies.
Forum thread: New HCG LIST by Tony Wei http://www.galaxyzooforum.org/index.php?topic=281574.0 Hickson Compact Group catalog
Forum: "Deep Fields" galaxy clusters with z > 0.200. http://www.galaxyzooforum.org/index.php?topic=270814.0
Forum: Triplets ? Triplets ! http://www.galaxyzooforum.org/index.php?topic=277173.0 images of three galaxies
Forum thread: VCC catalogue http://www.galaxyzooforum.org/index.php?topic=279880.0 the Virgo Cluster Catalogue.
Forum: The Abell catalogue http://www.galaxyzooforum.org/index.php?topic=278412.0 galaxy clusters.
Forum: Clusters of Galaxies http://www.galaxyzooforum.org/index.php?topic=73.0
Forum: Dark matter http://www.galaxyzooforum.org/index.php?topic=272147.0 Extensive discussion by graham d, Edd and Eigenstate
Talk: Dark Galaxy http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0001069?page=4&comment_id=5439a6e6415ac128a3001f1a about any sort of dark galaxy, eg. low surface brightness, hydrogen only, or dark matter. Looking for galaxies with unexplained disturbance.
Blog: Unveiling the Mass of Galaxies with Vera Rubin June 15, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/06/15/unveiling-the-mass-of-galaxies-with-vera-rubin/ "...rotation curves of galaxies (observations that provided the first strong evidence for dark matter in galaxies). discovering a galaxy in which the stars rotated in two directions)
Blog: Explaining clustering statistics we use to study the distribution of Galaxy Zoo galaxies by raminskibba June 2014 http://blog.galaxyzoo.org/2014/06/27/explaining-clustering-statistics-we-use-to-study-the-distribution-of-galaxy-zoo-galaxies/ "elliptical galaxies tend to be found in dense environments[,..]barred disc galaxies tend to be found in denser environments than average disc galaxies[...]next priority with Galaxy Zoo is to develop dark matter halo models of the environmental dependence of galaxy morphology."
Blog: Galaxy Zoo Multi Mergers Dec 2010 http://blog.galaxyzoo.org/2010/12/22/galaxy-zoo-multi-mergers/ when 3 galaxies collide: a list for publication with 39 examples "We therefore compared these merger fractions and galaxy properties to a large and well-known simulation called the Millennium Run. This is a cosmic scale simulation of Dark Matter" "Simulation did rather well – it predicted the relative abundance of multi-mergers to within a few percent and it predicted that galaxies in these systems should have properties more like a typical elliptical rather than a typical spiral. "
NGC4254Blog: A Dark Secret in Virgo http://blog.galaxyzoo.org/2010/12/17/a-dark-secret-in-virgo/ "VIRGOHI21 is currently the best dark galaxy candidate" NGC4254 is being distorted by an invisible galaxy (!) made of dark matter, and some hydrogen gas and dust.
Forum: Supernova by c_cld. For congratulations of The 2011 Nobel Prize in Physics awarded "for the discovery of the accelerating expansion of the Universe through observations of distant supernovae" with one half to Saul Perlmutter and the other half jointly to Brian P. Schmidt and Adam G. Riess A mosaic showing 22 Type Ia supernovae discovered by the Sloan Supernova Survey. Each image is centered on the supernova within the galaxy that hosts it.
http://www.galaxyzooforum.org/index.php?topic=4767.msg562912#msg562912SDSS The Baryon Oscillation Spectroscopic Survey (BOSS) http://www.sdss.org/surveys/boss/ "map the spatial distribution of luminous red galaxies (LRGs) and quasars to detect the characteristic scale imprinted by baryon acoustic oscillations in the early universe" The Extended Baryon Oscillation Spectroscopic Survey (eBOSS) http://www.sdss.org/surveys/eboss/ "will precisely measure the expansion history of the Universe throughout eighty percent of cosmic history, back to when the Universe was less than three billion years old, and improve constraints on the nature of dark energy."
http://www.mpa-garching.mpg.de/HIGHLIGHT/2002/cr.gif
"Simulated distribution of matter in the `local' Universe. A volume of 520 million lightyears length and 100 million lightyear depth is shown. The position of our Galaxy, of several nearby clusters of galaxies, of the Pisces-Perseus filament of galaxies, and of NGC 315 are marked."
You The Cosmic Web, or: What does the universe look like at a VERY large scale? https://www.youtube.com/watch?v=74IsySs3RGU "The Millennium Simulation featured in this clip was run in 2005 by the Virgo Consortium, an international group of astrophysicists from Germany, the United Kingdom, Canada, Japan and the United States.... galaxies and the dark matter around them formed web-like structures that resemble the shapes observed by the most recent data available in cosmic surveys, such as the Sloan Digital Sky Survey. Also very importantly: the simulation provided support for our current "standard model" of cosmology, the so called: Lambda Cold Dark Matter Model."
wiki http://en.wikipedia.org/wiki/Galaxy_filament
Forum: Alice and the Ellipticals, Galaxy Zoo to the Rescue! (Wed 26 Jun '13) by JeanTate http://www.galaxyzooforum.org/index.php?topic=280974.0 also in Talk http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00002kk Using ellipticals to estimate the Hubble constant and the size of the Universe, also compare a post in Forum and Talk
Forum: Saturday the 29th of September 2012 The Phoenix Cluster (SPT-CLJ2344-4243).by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=280435.0 " Something has triggered these enormous star forming
rates in the cluster's central galaxy; seemingly a battle between the 'Intracluster Medium' (ICM) and a super-
massive black hole which is growing at enormous and unsustainable rates. ..
DESI at Kit Peake, Arizona http://desi.lbl.gov/ modelling the universe "The Dark Energy Spectroscopic Instrument (DESI) will measure the effect of dark energy on the expansion of the universe. It will obtain optical spectra for tens of millions of galaxies and quasars, constructing a 3-dimensional map spanning the nearby universe to 10 billion light years. DESI will be conducted on the Mayall 4-meter telescope at Kitt Peak National Observatory starting in 2018." Looking for the chameleon particle, which changes its force.
Cosmology
You Tube:Shape of the Universe Orange Theory by Cristian Bredee https://www.youtube.com/watch?v=iIapX8jhCI0 The Universe is a 12 dimensional torus.
APOD: The Sloan Great Wall: Largest Known Structure? http://apod.nasa.gov/apod/ap071107.html "The labeled Sloan Great Wall spans over one billion light years, longer than any structure ever measured""
Credit & Copyright: W. Schaap (Kapteyn Institute, U. Groningen) et al., 2dF Galaxy Redshift SurveyBlog: Questions about Cosmology? by y karenlmasters June 2009 http://blog.galaxyzoo.org/2009/06/23/questions-about-cosmology/ A group of young cosmology researchers at the University of Portsmouth (where a number of Zoo people work) are trying to start a video podcast outreach project. The working title is “Our Universe” and the idea is that these would be short video podcasts, probably released on You Tube which will give some insight into how cosmologists/astronomers work as well as answer some basic questions about the science
Talk: Galaxy Colour and Redshift Chart Redshift from z=6.4 to z=infinity, and beyond!
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/576934?comment=964088Posted
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Budgieye
moderator
Index for Galaxy Zoo Talk our Milky Wxy and its stars ay Galahttps://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
4.1 Supernova SDSS The Legacy Survey: Stripe 82,The Hunt for Supernova , BBC Snapshot Supernova 4.2 Milky Way Galaxy and Andromeda Galaxy 4.3 Stars in our galaxy 4.4 nebula, supernova remnants, starbirth nebulae 4.5 white dwarf stars, neutron stars 4.6 blue, yellow and white (green) stars 4.7 red stars, carbon, red and brown dwarf 4.8 spectroscopic binary stars 4.9 variable stars , unusual stars 4.10 exoplanets4.1 Supernovae in Talk, Forum, SDSS The Legacy Survey: Stripe 82, and Galaxy Zoo: The Hunt for Supernova https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
#supernova #unreported supernova
No supernova seen in our galaxy for 400 years, but many have seen many in other galaxies, see below.
If you find an overlapping star in a galaxy on SDSS, how can you decide if it is a supernova? First look up information on NED to see if it is a known supernova. http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0000lv2 #1 How do I : Find out more information about the galaxy I have classified? which describes checking on NED or SIMBAD.
If it is not a known supernova, zoom out and see if there are similar stars nearby.Also, look at the known supernova on the lists below,
Supernova are small but bright, bright with a round disk , usually blue or green depending on distance.
If it may be an unrecorded supernova, post on Talk help, and someone will help. To prove it is a supernova, it is best to have an image taken before, during and after, and a spectrum taken at the time or lingering X-rays. These SDSS images were taken years ago, so any supernova detected during explosion will now be dim.
These supernova listed below. have been checked with NED or SIMBAD. Supernova are only visible for several months, and these supernovae just happen to have been exploding while SDSS was taking images. Sometimes NED has Object ID for previous supernovae that had since faded and there is nothing to be seen in optical wavelengths, but they may still be producing X-rays.
Talk: List of Supernova http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ100689l [I'm not sure if these are images when the supernova was active]
Talk: Unreported supernova #SNe http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ00016qc Zooites have found some possible supernova, by looking at before, during and after images.
Talk: Calculating supernova magnitude https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1268/976815?comment=1612714
Talk: Supernovae spectra (#SNe) in SDSS galaxy by C_cld http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00015z0?page=1&comment_id=54a98069bb7b566a64000b7e
Talk: Probable supernova in Hubble images by C-cld http://talk.galaxyzoo.org/?_ga=1.221223262.711441289.1371287491#/subjects/AGZ0007xuf
Talk: SN 2015bn: A nearby superluminous supernova by c_cld https://talk.galaxyzoo.org/?_ga=1.236417095.711441289.1371287491#/boards/BGZ0000001/discussions/DGZ0001ysv?page=1&comment_id=5729b7c7f96efa0091002c90
https://talk.galaxyzoo.org/#/subjects/AGZ000d147 SN 2006qw -
Talk: Host Galaxy and supernova SN 2002il http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0001ukp?page=1&comment_id=56c9098aa0761e038900011d
Forum: Supernova thread http://www.galaxyzooforum.org/index.php?topic=4767.705 To seadch in the forum, use the search in the middle of the screen, not the top right corner, which only searches the thread you are in. Remember to use the 58..... number as well as the 12..... number.
Forum: Recapitulation of SNe posted with SDSS imaging (or available spectrum) by c_cld http://www.galaxyzooforum.org/index.php?topic=4767.msg577203#msg577203 List of supernova in SDSS
Forum: Spectra of supernova in SDSS, superimposed on galaxy spectra by c_cld http://www.galaxyzooforum.org/index.php?topic=4767.msg576480#msg576480
Forum: Type II supernova with spectrum http://www.galaxyzooforum.org/index.php?topic=4767.msg575548#msg575548 by c_cld SN 2004dj Type II P discovered 2004-07-31 in NGC2403 1237666519019683848 SDSS J073717.04+653558.1 imaging 2004-10-18:11:31 79days after discovery
host galaxy 1237666519019618327 http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237666519019618327Forum: Mosaic of SNe imaged by hazard in SDSS few days/months after discovery : compilation of previous posts by c_cld http://www.galaxyzooforum.org/index.php?topic=4767.msg574397#msg574397 a poster of supernova compiled by Zooites in Galaxy Zoo Forum.
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Reporting transients
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1128954?comment=1846610
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1123986?comment=1839909
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/656872?comment=1109947&page=2
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1081597?comment=1866915===================================================
a selection of supernova, green blue white and purple (from posts in Forum by c_cld)
SN 2002bx
Not sure about this one
spectrum http://skyserver.sdss.org/dr8/en/get/specById.asp?id=381824132829964288
SDSS J130623.89-014033.6
http://www.galaxyzooforum.org/index.php?topic=4767.msg574040#msg574040
supernovae from spectral survey, 'potential candidates' by c_cld http://www.galaxyzooforum.org/index.php?topic=279846.0
SN 2003hu
1237663272554463618SDSS J191131.09+775334.8 http://talk.galaxyzoo.org/#/subjects/AGZ0002hhd
Forum: in supernova thread by c_cld http://www.galaxyzooforum.org/index.php?topic=4767.msg230455#msg230455
SN 2004bh
1237665097390817477SDSS J094056.36+274647.8
http://talk.galaxyzoo.org/#/subjects/AGZ0002kpf or http://talk.galaxyzoo.org/#/subjects/AGZ0002kpc
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587739376165912634
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237665097390817477
http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0000yfq
SN 2002hl Type Ia discovery 2002-11-04 in NGC3665 1237662224599679028SDSS J112440.10+384602.3 2003-4-26:5:37:32.
http://www.galaxyzooforum.org/index.php?topic=4767.msg574040#msg574040http://www.galaxyzooforum.org/index.php?topic=4767.msg574040#msg574040
SISN 32 type Ia supernova http://talk.galaxyzoo.org/#/subjects/AGZ0002b8p
outburst from a cool hypergiant star
https://www.galaxyzoo.org/#/examine/AGZ000cklh http://skyserver.sdss.org/dr12/en/tools/explore/Summary.aspx?id=1237651736313528404 http://legacysurvey.org/viewer?ra=224.9973&dec=1.9065&zoom=14&layer=decals-dr2
Talk: Artifact? / Supernova imposter / outburst from a cool hypergiant star by Ghost_Sheep_SWR https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0001xcd?page=1&comment_id=571008b4861f896b7e0000a2
Forum: Before and During by joinpep http://www.galaxyzooforum.org/index.php?topic=4767.msg575100#msg575100
10-15-2001 18.99 17.66 17.04 16.63 16.44 DR6 587731187814432912 z.09 spec
11-18-2001 18.80 17.63 17.02 16.60 16.39 DR8 1237657192515764326 z.09 spec
SN 2002dd in Hubble Deep Field http://www.galaxyzooforum.org/index.php?topic=275042.msg560692#msg560692 very red and distant.
Talk: Ejected black hole? or luminous blue variable star (LBV) erupting for decades since 1950, followed by a Type IIn SN in 2001?http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ila?page=1&comment_id=546ee14f415ac12f66000ee4 http://mnras.oxfordjournals.org/content/445/1/515
http://talk.galaxyzoo.org/#/subjects/AGZ0002wqk SN 2004du
Talk: something odd (unreported supernova?) http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/
Supernova in DECaLS
Reported Transients https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/1134390?comment=1855773&page=1 These are a list of 63 Probable Supernova that I know have been reported, and more.
SDSS The Legacy Survey: Stripe 82
Supernovae discovered by supernova survey in stripe 82, 84, 86. The same area of the sky was surveyed every few days to look for new stars or slow moving objects. Sometimes the weather was slightly cloudy.
Supernovae (target list) http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ100689l
http://classic.sdss.org/includes/gallery/sn_gallery.200567.x2.oname.jpg
website: SDSS The Legacy Survey: Stripe 82 http://classic.sdss.org/legacy/stripe82.html multiple sweeps looking for variability (ie supernovae) and proper motion, then the images have been stacked to form higher resolution galaxy images.Stripe 82, 84, 86, though the black background is often speckly.
http://classic.sdss.org/supernova/snlist_confirmed.html
Snaphot Supernova 2015
Talk: Stargazing Live 2015 / solar eclipse in North Atlantic / Snaphot Supernova http://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ0001aby
https://stargazing2015.zooniverse.org/#/projects/zooniverse/Snapshot Supernova , is now closed.
https://stargazing2015.zooniverse.org/#/projects/zooniverse/Snapshot Supernova/science-case , the science
https://stargazing2015.zooniverse.org/#/projects/zooniverse/Snapshot Supernova/results , the results
Snapshot Supernova has discovered four supernova,
Type 1c supernovahttps://s3.amazonaws.com/demo.zooniverse.org/panoptes-front-end/results/FMTJ13254307-2932269.png
Type 1ahttps://s3.amazonaws.com/demo.zooniverse.org/panoptes-front-end/results/FMTJ13545986-2820019.png
Type Iahttps://s3.amazonaws.com/demo.zooniverse.org/panoptes-front-end/results/FMTJ10310056-3658263.png
Type IIhttps://s3.amazonaws.com/demo.zooniverse.org/panoptes-front-end/results/FMTJ10310056-3658263.png
http://www.astronomerstelegram.org/?read=7254
http://www.astronomerstelegram.org/?read=7261
https://s3.amazonaws.com/demo.zooniverse.org/panoptes-front-end/results/FMTJ13545986-2820019.png
Type 1a supernova are "standard candles". They are always the same brightness, and can be used to measure how far away a supernova is. The redshift of the supernova light is used to measure the stretching of space by the expanding universe. So if you then run the expansion backwards, you can get a measurement for how long the universe has been expanding since the Big Bang. One of these supernova was measured to be 500 million light-years away and the beginning of our universe would be 14.03 billion years ago, which is several hundred millions more than the current value of 13.77.
citizen science Galaxy Zoo: The Hunt for Supernova 2009-2010
Galaxy Zoo: The Hunt for Supernova project is now finished. http://supernova.galaxyzoo.org/how_to_take_part
Blog: Machine Learning & Supernovae August 2012 Joey Richards http://blog.galaxyzoo.org/2012/08/03/machine-learning-supernovae/ "The manual vetting of tens of thousands of supernova candidates by the Galaxy Zoo community has provided PTF an invaluable data set which could be used to accurately train such a ML classifier."
Blog: Galaxy Zoo: Supernova Author Poster http://blog.galaxyzoo.org/2010/12/04/galaxy-zoo-supernova-author-poster/ 13,400 individuals, who have taken part in the Supernova project to date, merged into an amazing image of the famous supernova 1987a.
Blog: Supernova hunters discover a rare beast by Kate Maguire August 2011 http://blog.galaxyzoo.org/2011/08/31/supernova-hunters-discover-a-rare-beast/ "PTF10ops had unusual observational properties that suggest that maybe a new type of supernova explosion has been discovered. It is located very far from its host galaxy, actually the farthest supernova from the centre of its host galaxy discovered to date. Its spectra also contained signs of rare elements such as Titanium and Chromium. In normal Type Ia supernovae, how long a supernova stays bright is directly related to its peak brightness, but PTF10ops did not follow this rule and stayed brighter for much longer than expected."
Blog: First Supernova Paper Accepted November 2010 http://blog.galaxyzoo.org/2010/11/11/first-supernova-paper-accepted/
"classifications from nearly 3000 Zooites, reports the results from the early trials of the supernova project which ran between April and July 2010. If you’ve been following the progress of the project, then it’ll be no surprise that things went well. In fact, the results are remarkably good. From the nearly 14000 candidates processed in that time, we caught 93% of the supernovae in the sample, and not a single candidate identified as a supernova by the Zoo was a false alarm."
in a nearby NGC galaxy – the SN is located directly in one of the spiral arms.Blog: Supernova updates ugust 2, 2010 by Mark http://blog.galaxyzoo.org/2010/08/02/supernova-updates/ " the zoo is making a massive contribution to the supernova identification effort in The Palomar Transient Factory. The zoo has already classified some 20,000 supernova candidates, usually several hundred every day"
Blog: Supernova zoo offline this week August 17, 2010
by The Zooniverse http://blog.galaxyzoo.org/2010/08/17/supernova-zoo-offline-this-week/ "the Palomar Transient Factory, is undergoing some maintenance. They’re re-aluminising the mirror of the telescope to improve the sensitivity, which usually takes a few days during which the telescope can’t be used. (It’s also the beginning of “bright time”, coming up to full moon, when the sky is brighter and the search less sensitive – so it’s a good time for maintenance.)"Blog: Galaxy Zoo: Supernova is backDecember 10, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/12/10/galaxy-zoo-supernova-is-back/"Palomar, the observatory at which PTF operates, has suffered unusual atmospheric conditions following the forest fires in Southern California over the summer. "
PalomarBlog: Hello From Palomar December 11, 2009 by Robert http://blog.galaxyzoo.org/2009/12/11/1917/ I will make spectroscopic observations the next two nights of the best candidates found. .. 5.1 m Hale Telescope.." (!!!)
Blog: New supernovae found! August 14, 2009 by Sarah http://blog.galaxyzoo.org/2009/08/14/new-supernovae-found/ "if the transient object appears as in a blob, rather than a perfect circle, it is far more likely to be a real supernova, than a variable star."
Blog: Supernova Zoo news October 13, 2009 by Mark http://blog.galaxyzoo.org/2009/10/13/1644/ "Thanks to all of you who participated in our second trial of the supernova hunt! As with our first trial in August, it was very successful, and kept our WHT observers, Jakob and Isobel, very busy – as you can see from their blogs! In the 3 days that we ran the trial, 2089 of you inspected over 2000 supernova candidates, answering more than 100,000 classification questions. The best of these were then passed to WHT for observation....Using the spectrograph on WHT, we were able to confirm these as supernovae and determine their types. We took spectra of more than 20 candidates identified by the zoo, and are now busy reducing and analysing that data."
Blog: Supernova Hunt Underway Again! October 11, 2009 http://blog.galaxyzoo.org/2009/10/11/supernova-hunt-underway-again/ by Mark "We have a robotic telescope from the Palomar Transient Factory in California sending us candidate supernovae from the galaxies it scans, and, as in August, we have two astronomers from Oxford standing by at the William Herschel Telescope on the island of La Palma in the Canary Islands. "
Blog: New supernovae found! August 14, 2009 by Sarah http://blog.galaxyzoo.org/2009/08/14/new-supernovae-found/ "This is a great example of what a supernova will look like in the zoo images. The reason for this is that you can see some structure in the host of the supernova. In general if the transient object appears as in a blob, rather than a perfect circle, it is far more likely to be a real supernova, than a variable star."
Blog: WHT supernovae finds update August 14, 2009 by Sarah http://blog.galaxyzoo.org/2009/08/14/wht-supernovae-finds-update/ "Our next target is a very exciting target. It is either a very new supernovae that has only been around for a few days, or it could be an asteroid."
Blog: WHT second night prepped and ready to go! by Sarah Aug 2009 http://blog.galaxyzoo.org/2009/08/13/wht-second-night-prepped-and-ready-to-go/ "One hour till sunset and Mark and I are ready for another fantastic night of supernovae observing."
Blog: Galaxy Zoo Supernovae from a technical standpoint by Arfon 2009 http://blog.galaxyzoo.org/2009/08/14/galaxy-zoo-supernovae-from-a-technical-standpoint/ "technical details associated with our recent supernova hunt."
Publication: Galaxy Zoo Supernovae by Smith, A. M.; Lynn, S.; Sullivan, M.; Lintott, C. J.; Nugent, P. E.; Botyanszki, J.; Kasliwal, M.; Quimby, R.; Bamford, S. P.; Fortson, L. F.; Schawinski, K.; Hook, I.; Blake, S.; Podsiadlowski, P.; Jönsson, J.; Gal-Yam, A.; Arcavi, I.; Howell, D. A.; Bloom, J. S.; Jacobsen, J.; Kulkarni, S. R.; Law, N. M.; Ofek, E. O.; Walters, R. http://adsabs.harvard.edu/abs/2011MNRAS.412.1309S citizen scientost can accurate identify supernovae,
Publication: PTF10ops - a subluminous, normal-width light curve Type Ia supernova in the middle of nowhere by Maguire + 2011 http://adsabs.harvard.edu/abs/2011MNRAS.418..747M "The host galaxy environment of PTF10ops is also unusual with no galaxy detected at the position of the SN down to an absolute limiting magnitude of r≥-12.0 mag, but a very massive galaxy is present at a separation of ˜148 kpc and at the same redshift as suggested by the SN spectral features"
Forum: Wednesday, 20th February, 2013: Zooites as 'Click Data' by JeanTate http://www.galaxyzooforum.org/index.php?topic=280647.0 "those who designed Supernova Zoo allowed three possible outcome scores for each classification ('click'): -1, 1, and 3...whether zooites could be grouped into "communities", based on their pattern of clicks. "There were 5 categories of classifiers, based on their certainty of clicking. This study was made after further investigation of the supernova candidates.
Posted
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Budgieye
moderator
4.2 Milky Way Galaxy and Andromeda Galaxy and nearby https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
Forum OOTD: Friday, August 23, 2013: Mergers and the Future of The Milky Way by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281110.0
Talk: Zone of Avoidance http://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001962?page=1&comment_id=54de46566975263491000620 galaxies are hard to see through the dust of our Milky Way galaxy
zone of avoidance #ZOAG , galaxy nearly hidden by Milky Way.
Forum thread: Find galaxies for the PSMWGC catalog Post objects that appear to be "behind" the Milky Way Galaxy
Forum: ZOAG zone of avoidance galaxies http://www.galaxyzooforum.org/index.php?topic=278850.0
Forum: Look-alike Milky Way galaxies http://www.galaxyzooforum.org/index.php?topic=276860.0
Blog: A Summer Spent Finding Our Galactic Twin by Tim Buckman http://blog.galaxyzoo.org/2011/09/06/a-summer-spent-finding-our-galactic-twin/
Website: The Milky Way Website http://www.milkywayproject.org/ We need your help looking through tens of thousands of images from the Spitzer Space Telescope. By telling us what you see in this infrared data, we can better understand how stars form. not currently active http://blog.milkywayproject.org/
Publication: The Milky Way Project: Leveraging Citizen Science and Machine Learning to Detect Interstellar Bubbles, Beaumont+ 2014. http://arxiv.org/abs/1406.2692 Brut is based on the Random Forest algorithm, and uses bubbles identified by >35,000 citizen scientists from the Milky Way Project to discover the identifying characteristics of bubbles in images from the Spitzer Space Telescope.
Paper The Milky Way Project: A Statistical Study of Massive Star Formation Associated with Infrared Bubbles Kendrew+ 2012. http://adsabs.harvard.edu/abs/2012ApJ...755...71K
Paper: The Milky Way Project First Data Release: a bubblier Galactic disc, Simpson+ 2012 http://mnras.oxfordjournals.org/content/424/4/2442.abstract?sid=4a445f2b-71d6-4865-9e64-3aba88192f61 a new catalogue of 5106 infrared bubbles created through visual classification via the online citizen science website ‘;The Milky Way Project’.
Zooniverse project: Andromeda Project http://www.andromedaproject.org/ not currently active. [Andromeda galaxy is the closest galaxy to our own Milky Way Galaxy and we can see detail in it eg star clusters and nebulae] http://blog.andromedaproject.org/
M31 Andromeda Galaxy
Talk: Andromeda Galaxy in SDSS by Alpha Auriga http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00018u3?page=1&comment_id=54d79bbe69752651db000782 the nearest neighbour to our Milky Way Galaxy, it is visible as a fuzzy patch in a dark sky, about the apparent size of the Moon, so the only galaxy visible to the unaided eye.
SDSS APO Galactic Evolution Experiment (APOGEE) http://www.sdss.org/surveys/apogee/ "IR map of the whole Galaxy showing the plane and bulge of the Galaxy full of stars and dust. APOGEE uses new IR instrumentation to study stars within the disk and is less affected by the extinction from interstellar dust" APOGEE-2 will extend the reach of the SDSS by using both the Sloan Foundation Telescope at Apache Point Observatory and the Irénée du Pont Telescope at Las Campanas Observatory in Chile. A telescope in each hemisphere means that APOGEE-2 will be able to see the entire Milky Way. http://www.sdss.org/surveys/apogee-2/
SDSS SEGUE: Mapping the Outer Milky Way Sloan Extension for Galactic Understanding and Exploration (SEGUE) http://www.sdss.org/surveys/segue/ " the complex kinematic and chemical substructure of the [Milky Way] Galactic halo and disks, providing essential clues to the assembly and enrichment history of the Galaxy. In particular, the outer halo is expected to be dominated by late-time accretion events. SEGUE can help constrain existing models for the formation of the stellar halo and inform the next generation of high resolution simulations of Galaxy formation."
Forum: 2MASX Catalog http://www.galaxyzooforum.org/index.php?topic=278490.0 The Two Micron All Sky Survey at IPAC "An unprecedented view of the Milky Way nearly free of the obscuring effects of interstellar dust, ...galaxies in the 60°-wide ``Zone of Avoidance,'' where dust within the Milky Way renders optical galaxy surveys incomplete.
.. cool, and thus extremely red (e.g., extremely low-luminosity stars and brown dwarfs), or heavily obscured at optical wavelengths (e.g., dust-obscured AGNs and globular clusters located in the Galactic plane)."Forum thread: A few little star clusters, nebulae, and other I found around andromeda http://www.galaxyzooforum.org/index.php?topic=281789.0
Forum thread: Nearby galaxies z less than 0.004 http://www.galaxyzooforum.org/index.php?topic=7811.0
Forum thread: VCC catalogue http://www.galaxyzooforum.org/index.php?topic=279880.0 the Virgo Cluster Catalogue.
Forum: Friday, August 23, 2013: Mergers and the Future of The Milky Way by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281110.0 Milky Way and Andromeda galaxies will collide.
Forum: Wednesday, 10th July, 2013: Where Does This Lead To? JeanTate http://www.galaxyzooforum.org/index.php?topic=280988.0 dust from the Milky Way Galaxy affects measurements.
Forum: Wednesday, 21st November, 2012: Pinwheel Galaxy (M101)'s Exurbs by JeanTate http://www.galaxyzooforum.org/index.php?topic=280513.0 The area around the Pinwheel Galaxy.
Forum: Friday, 14th December, 2012: SDSS Galaxies and the Andromeda Project by JeanTate http://www.galaxyzooforum.org/index.php?topic=280557.0
Website: Detailed view of the Andromeda galaxy (M31) [Zoomable] http://www.aai.ee/~elmo/m31/
Forum: Wednesday, 9th January, 2013: M31's Globular Clusters by JeanTate http://www.galaxyzooforum.org/index.php?topic=280580.0
Forum: Wednesday, 2nd January, 2013: HII Regions in M31 by JeanTate http://www.galaxyzooforum.org/index.php?topic=280574.0
website: http://www.rhysy.net/the-hydrogen-sky.html What the sky would look like if we could see hydrogen. Milky Way. The Magellanic stream.
The Milky Way Galaxy is X-shaped https://phys.org/news/2016-03-wise-reveals-x-shaped-bulge-galaxy.html
The X-shaped Bulge of the Milky Way revealed by WISE
Melissa Ness1,2 & Dustin Lang https://arxiv.org/pdf/1603.00026.pdfPosted
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Budgieye
moderator
4.3 Stars in our galaxy https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
Hashtag: #star star
from astronomy course https://www.mtholyoke.edu/courses/mdyar/ast100/HW/hw3_JL.html
3.2 Colours of stars http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp?page=3&comment_id=53fef69b3d5a77490c0001f3
3.3 Spectra of stars http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp?page=3&comment_id=53fef6d225c6427998000054
globular clustehttp://talk.galaxyzoo.org/#/subjects/AGZ0002wfh NGC7006 globular cluster
Talk: Wolfe 359 - see the proper motion of a star in 10 years by Budgieye https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001yxz?page=1&comment_id=572f33bbf96efa53d20000a4 See a star move! Compare between the DECaLS and the SDSS image
Talk: Stars on Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001awj list of: White dwarf stars, blue stars, blue stragglers (globular clusters), high proper motion stars, eclipsing and cataclymics variables
Forum: Starclusters http://www.galaxyzooforum.org/index.php?topic=270636.0
Forum: Bright stars in SDSS images by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281564.msg649418#msg649418
Forum: GLOBULAR CLUSTERS INDEX - Which one have I found? by Jules 2011 http://www.galaxyzooforum.org/index.php?topic=272726.0 30 30 images of globular clusters
Forum: SDSS OPEN CLUSTERS INDEX by Jules 2011 http://www.galaxyzooforum.org/index.php?topic=278836.0 images of 100 clusters with ID
Forum thread : Globular Clusters http://www.galaxyzooforum.org/index.php?topic=786.0
Forum thread: The best Stars! http://www.galaxyzooforum.org/index.php?topic=270719.2745 pretty images of overexposed stars
Forum thread Binaries http://www.galaxyzooforum.org/index.php?topic=270628.0 optically double stars
Forum: How long before we can measure these stars moving? by Mukund Vedapudi http://www.galaxyzooforum.org/index.php?topic=276167.msg371776#msg371776
website: http://chandra.harvard.edu/photo/scale_distance.html Example 2. If two stars in a star cluster 800 light years away are 1 arc minute apart, then using Equation (2) their separation in light years is calculated to be:
S = (.00029) x (800) x 1 = .23 light yearsForum: Proper motion of stars Mukund Vedapudi http://www.galaxyzooforum.org/index.php?topic=276167.msg371776#msg371776Mukund Vedapudi
Modern measurement of proper motions:* Compare images of the sky taken 20 to 50 years apart. * Measure how much the stars have moved relative to distant background objects (usually galaxies or quasars).Example: Consider a star with a proper motion of 0.1 arcsec/year:
* After 1 year: star has moved 0.1 arcsec * After 10 years: star has moved 0.1x10 = 1 arcsec * After 100 years: star has moved 0.1x100 = 10 arcsec
Forum: Monday, 23rd September, 2013: Cepheids: Our most beloved stars. by fatha731 http://www.galaxyzooforum.org/index.php?topic=281238.0 "Type II Cepheids are used to establish the distance to the Galactic center, globular clusters, and galaxies."
Forum: Thursday 13th September - The Worlds with Two Suns by Lightbulb500 http://www.galaxyzooforum.org/index.php?topic=280402.0 Kepler planets that orbit two stars
Forum: Sat Dec 10 2011 "Proper motion" in quasars http://www.galaxyzooforum.org/index.php?topic=279706.msg572451#msg572451So there are errors in the process for calculating proper motion.
Using my highly unscientific survey, I suggest that any proper motion under 2 should be ignored. From Jean Tate The unit of the quoted proper motion is 0.01"/y, meaning that if you watched the object for a century (100 years), and if its motion remained the same throughout, it would seem to have moved 1" (one arcsec)."Even nearby enormous stars would appear as points. To play with numbers, take a big fat giant star, with say a radius 500 times larger than the Sun's, and put it down pretty close, say 200 light years away. Then 500 solar radii / 200 ly = 0.04 arcseconds. That's a tenth of an SDSS pixel."
Re: Can SDSS actually picture nearby stars?
http://www.galaxyzooforum.org/index.php?topic=1245.msg7621#msg7621Posted
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Budgieye
moderator
4.4 nebulae, supernova remnants, starbirth nebulae
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4There have been no supernova in our galaxy for 400 years, we can only see the remains of past supernova. For supernovae in other galaxies, see http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4&comment_id=53d8b997db90c7673f00101d
Forum: NGC 6058 http://www.galaxyzooforum.org/index.php?topic=275042.msg426664#msg426664
Forum: nebula with outflow lobes http://www.galaxyzooforum.org/index.php?topic=275042.msg375616#msg375616
forum: Twin jet nebula http://www.galaxyzooforum.org/index.php?topic=275042.msg342175#msg342175
Forum: Dark nebulae by AlexandredOr http://www.galaxyzooforum.org/index.php?topic=278917.0
Collection Planetary Nebulae - Collection ID: CGZS000hdq - by Alpha Aurigae http://talk.galaxyzoo.org/#/collections/CGZS000hdq
Talk: Reflection Nebula http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00012mp?page=1&comment_id=5474a444415ac130da003088
planetary nebula centered on white dwarf http://skyserver.sdss.org/dr7/en/tools/explore/obj.asp?id=587738067267813416
Forum The Nebulae Collection (formed from many threads) by LizPeter An extensive list of SDSS images with nebulae in them. With cross listing of dr7 numbers and dr8 numbers (ie 58............ and 12............ numbers)
Forum: Identification list of all posted nebulae by LizPeter http://www.galaxyzooforum.org/index.php?topic=273756.0
List of ID numbers 58............... 75............ 12..............
Bok globule, Herbig-Haro object (4-255)
Orion nebula, can be seen by unaided eye
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237667726440202313 http://talk.galaxyzoo.org/#/subjects/AGZ0003ooh
Talk: Part of the Orion Nebula by Alpha Aurigae http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00010cq?page=1&comment_id=543d53e7415ac17a8400031d
Talk: Zoomed out image by Alpha Auriga http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00018x3?page=1&comment_id=54d8b8376975266eee0003fb Horsehead nebula, Flame Nebula
Forum OOTD: Sunday, 6 July 2014: Large Dark Nebulae by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281951.0
Herbig-Haro Object
These are patches of nebulosity associated with new stars and are formed by gas emitted by new stars colliding with nearby clouds of gas and dust. These objects are very short-lived, lasting only for a few thousand years.
Link: OOTD - 14 Aug 2009 - HH 225 by LizPeter http://www.galaxyzooforum.org/index.php?topic=275951.0 a planetary nebula in M31 the Andromeda Galaxy, the nearest to our own. http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237659888122920972 http://skyservice.pha.jhu.edu/DR8/ImgCutout/getjpeg.aspx?(ra=10.62250384&dec=40.96410031&scale=0.2&width=200&height=200&opt=G
Forum: Sunday, October 13th, 2013: Chocolate Milk by fatha731 http://www.galaxyzooforum.org/index.php?topic=281425.0 a selection of pretty images of nebulae
Forum: Wednesday, 27th March, 2013: Truly Awesome Stars by JeanTate http://www.galaxyzooforum.org/index.php?topic=280701.0 some nebulae are ULX, an ultra-luminous x-ray source and more powerful than an AGN.
Forum: Wednesday, 6th March, 2013: Galaxy Zoo, Not Only Galaxies by JeanTate http://www.galaxyzooforum.org/index.php?topic=280665.0
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237667209970778285
Forum: Saturday, 2nd Feb 2013: Born Again Planetary Nebula by Mukund Vedapudi http://www.galaxyzooforum.org/index.php?topic=280619.0 "PN G208.5+33.2 or A30 is one of those rare cases where nuclear fusion reactions in the region surrounding the star's core heated the outer envelope of the star so much that it temporarily became a red giant again." Hubble and X-ray images
Forum: Saturday the 24th of November 2012 Reflection Nebulae by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=280521.0 NGC 1333 NGC1333, NGC 2068 M78 NGC2068 , The Ghost nebula (vdB141)
Forum: Monday 31st December 2012 by Hanny http://www.galaxyzooforum.org/index.php?topic=280572.0 image of the Orion Nebula
Forum: Saturday the 27th of October 2012 The Helix Nebula by Rick Nowell http://www.galaxyzooforum.org/index.php?topic=280478.0
Forum: Friday, 11th May 2012 : Recipe of the Day, Alexandre cooks some Spaghetti by Mukund Vedapudi http://www.galaxyzooforum.org/index.php?topic=280124.0 The Spaghetti Nebula
Forum: Sunday 5th August 2012: Alexandre? How do you do it? by Alice http://www.galaxyzooforum.org/index.php?topic=280321.0 "finds every object in the SDSS footprint that might or might not be a nebula."
Talk: Super-nebulae in nearby galaxies. https://talk.galaxyzoo.org/#/subjects/AGZ000d0es http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=88.92758355612571&dec=3.392169803698332 Wolf-Rayet areas
Cataclysmic Variable Star with nebula
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237676303491465546
Pretty planetary nebula, but dim
hard to see in SDSS, not easy in DECals eitherwhite dwarf star
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237664285635313718
SDSS J085413.15+085352.9
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1111832?comment=1820458
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Budgieye
moderator
4.5 white dwarf stars, neutron stars
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4white dwarf
a white dwarf is intensely blue in SDSS images
(a better name would be ultraviolet dwarf since it produces so much UV and blue light)
1237668348673589283 posted by Geoff
Talk: Stars on Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001awj list of: White dwarf stars, blue stars, blue stragglers (globular clusters), high proper motion stars, eclipsing and cataclymics variables
Talk: Neutron star http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ000121a?page=1&comment_id=5469ab5f415ac10e43000004 has outside links to information on neutron stars
Forum: White Dwarf Star Information by Blackprojects http://www.galaxyzooforum.org/index.php? a list of useful links
Forum OOTD: Saturday August 7 2010 White dwarf stars are hot, aren't they? http://www.galaxyzooforum.org/index.php?topic=278111.msg484589#msg484589 an ultra cool white dwarf
Forum: Wednesday, 16th February, 2011: for all you white dwarf fans by Jean Tate http://www.galaxyzooforum.org/index.php?topic=278933.msg531365#msg531365 several examples
Galaxy Zoo thread: White Dwarf Stars http://www.galaxyzooforum.org/index.php?topic=273513.1170
Galaxy Zoo comment: Neutron star-white dwarf binary http://www.galaxyzooforum.org/index.php?topic=273513.msg655398#msg655398
Galaxy Zoo Forum: Hyper-Velocity Stars Project http://www.galaxyzooforum.org/index.php?topic=276167.0
Blog: The Hyper-Velocity Stars Project: Serendipity at its Best. September 11, 2009 by Aida Bergés and my Galaxy Zoo name is Lovethetropics. http://blog.galaxyzoo.org/2009/09/11/the-hyper-velocity-stars-project-serendipity-at-its-best/ " a star moving at a vast speed relative to the rest of the galaxy. Possible explanations for this are being flung away from a black hole; being part of a galaxy merger; a binary system being disrupted either by a black hole, the proximity of another star, or one of the pair going supernova . . . and so on. They can travel at about 4000 kilometres per second, and seem to be heading out of our galaxy! All the ones discovered are massive and blue." [I calculated that it takes 100 years for these stars to move enough to be seen in SDSS images- Budgieye]
website: http://www.nasa.gov/image-feature/jpl/bow-shocks-in-space
SDSSDR7WD - Sloan Digital Sky Survey DR7 White Dwarf Catalog http://heasarc.gsfc.nasa.gov/W3Browse/all/sdssdr7wd.html
Talk: A pair of high velocity stars measure Milky Way dark matter halo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001yra?page=1&comment_id=57285b85821e1c0098003025
Citsci Discovery of oldest White Dwarf with disk
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/896180
"A volunteer working with the NASA-led Backyard Worlds: Planet 9 project has found the oldest and coldest known white dwarf — an Earth-sized remnant of a Sun-like star that has died — ringed by dust and debris. Astronomers suspect this could be the first known white dwarf with multiple dust rings."
https://www.nasa.gov/feature/goddard/2019/citizen-scientist-finds-ancient-white-dwarf-star-encircled-by-puzzling-ringsPosted
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Budgieye
moderator
4.6 blue, yellow and white (green) stars
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4Talk: Stars on Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001awj list of: White dwarf stars, blue stars, blue stragglers (globular clusters), high proper motion stars, eclipsing and cataclymics variables
Posted
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Budgieye
moderator
4.7 red stars, carbon, red and brown dwarf
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4Talk: Stars on Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001awj list of: White dwarf stars, blue stars, blue stragglers (globular clusters), high proper motion stars, eclipsing and cataclymics variables
Forum: CLASS M STARS RED DWARF"S http://www.galaxyzooforum.org/index.php?topic=278596.msg513008#msg513008
carbon star
1237648721230758082 posted by LynnSeguin
Forum: Carbon stars http://www.galaxyzooforum.org/index.php?topic=276262.0
Forum: Cataclysmic red dwarf star http://www.galaxyzooforum.org/index.php?topic=279787.msg575925#msg575925
Blog: A Universe Brimming with Red Dwarfs by Lightbulb500 http://blog.galaxyzoo.org/2010/12/10/a-universe-brimming-with-red-dwarfs/ " these elliptical galaxies contain 20 times the number of red dwarfs as the Milky Way!"
Forum: 2MASX Catalog http://www.galaxyzooforum.org/index.php?topic=278490.0 The Two Micron All Sky Survey at IPAC "An unprecedented view of the Milky Way nearly free of the obscuring effects of interstellar dust, ...galaxies in the 60°-wide ``Zone of Avoidance,'' where dust within the Milky Way renders optical galaxy surveys incomplete.
.. cool, and thus extremely red (e.g., extremely low-luminosity stars and brown dwarfs), or heavily obscured at optical wavelengths (e.g., dust-obscured AGNs and globular clusters located in the Galactic plane)."Wiki: Wide-field Infrared Survey Explorer (WISE) is a NASA infrared-wavelength astronomical space telescope launched in December 2009,[3][4][5] and placed in hibernation in February 2011 when its transmitter turned off.[6] It was re-activated in 2013.[7] WISE discovered thousands of minor planets and numerous star clusters. Its observations also supported the discovery of the first Y Dwarf and Earth trojan asteroid. WISE performed an all-sky astronomical survey with images in 3.4, 4.6, 12 and 22 μm wavelength range bands, over ten months using a 40 cm (16 in) diameter infrared telescope in Earth orbit.[13] After its hydrogen coolant depleted, a four-month mission extension called NEOWISE was conducted to search for near-Earth objects such as comets and asteroids using its remaining capability https://en.wikipedia.org/wiki/Wide-field_Infrared_Survey_Explorer
Backyard Worlds Planet 9 The Colors of Cold Brown Dwarfs by Adam Schneider https://blog.backyardworlds.org/2017/03/22/the-colors-of-cold-brown-dwarfs/ types of brown dwarfs, spectra, how they look in WISE
Zooniverse project Backyard Worlds Planet 9 https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9 Help scan the realm beyond Neptune for brown dwarfs and planet nine.
Brown Dwarf: The object you should start to love… https://blog.backyardworlds.org/2017/02/24/brown-dwarf-the-object-you-should-start-to-love/
Backyard Worlds: Planet Nine website Would Brown Dwarfs appear on DSS? https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9/talk/694/454622?page=1&scrollToLastComment=true the coolest sort of star a Y dwarf on SDSS.
Brown dwarf star, very pure red
http://skyservice.pha.jhu.edu/DR7/ImgCutout/getjpeg.aspx?ra=145.3955075&dec=10.16169961&scale=0.2&width=200&height=200&opt=G
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587734949662621932Forum: Brown Dwarf Stars http://www.galaxyzooforum.org/index.php?topic=273473.msg239414#msg239414
Forum: April 1, 2011 A really cool star! http://www.galaxyzooforum.org/index.php?topic=279059.msg539585#msg539585 has the surface temperature of a cup of coffee.
List of carbon stars by bluemagi
1237655499208589745
1237653652375405036
1237660343927309014
1237668333638844906
1237657590852157818
1237665535468044935
1237655693017612669
1237651735225761977
1237661064410038532
1237654380909232432
1237649918426546399
1237651213361349201
1237664880486187059
1237658423008493870
1237667254541025647
1237667915423744025
1237651272967258267
1237667442973474898
Stars and brown dwarfs
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/1001455
information about proper motion, radial velocity, parallex, orbital motion and also variable stars.Posted
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4.8 spectroscopic binary stars
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=42 stars close together, one blue, one red, so makes a magenta (purple pink) colour
a typical U- shaped spectrum, high in the blue end and the red end.
http://skyserver.sdss3.org/dr10/en/get/SpecById.ashx?id=5045334598390120448
1237664094506057825 posted by starry nite
Forum: Spectroscopic Binaries (pink star thread) http://www.galaxyzooforum.org/index.php?topic=10274.75
Forum: Re: White Dwarf Binary? Stars http://www.galaxyzooforum.org/index.php?topic=277101.msg421930#msg421930
Talk: HR 5692 - Red Giant - White Dwarf Binary http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ1006bxf
Talk: A pair of high velocity stars measure Milky Way dark matter halo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001yra?page=1&comment_id=57285b85821e1c0098003025
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Budgieye
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4.9 variable stars, unusual stars
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4Talk: Stars on Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001awj list of: White dwarf stars, blue stars, blue stragglers (globular clusters), high proper motion stars, eclipsing and cataclymics variables
Forum: Jets from young stars http://www.galaxyzooforum.org/index.php?topic=275042.msg348027#msg348027
jet from star
758887367570424288
Forum; the ejection of particles along a 12 light-year long jet http://www.galaxyzooforum.org/index.php?topic=275042.msg336632#msg336632
jet from star
758882320985030661
Forum: HH30 Disk and jet http://www.galaxyzooforum.org/index.php?topic=275042.msg340217#msg340217
Talk: Ejected black hole? or luminous blue variable star (LBV) erupting for decades since 1950, followed by a Type IIn SN in 2001?http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ila?page=1&comment_id=546ee14f415ac12f66000ee4 http://mnras.oxfordjournals.org/content/445/1/515
neutron star travelling at high speed
Forum thread: Hyper-Velocity Stars Project by Lovethetropics http://www.galaxyzooforum.org/index.php?topic=276167.0
Zooniverse Letters http://letters.zooniverse.org/ In-house publication of science results,
Hypervelocity star project Zooites go off on a tangent with HVS by Love The Tropics 2012 "Abstract: A Hyper-Velocity Star is a star which has obtained galactic escape velocity. The existence of stars with this characteristic was first proposed in 1988. ..List of confirmed Hyper-Velocity Stars as of September 2009" in SDSSGalaxy Zoo Forum: Hyper-Velocity Stars Project http://www.galaxyzooforum.org/index.php?topic=276167.0
Note: proper motion in SDSS page has been multiplied by 100, so you have to divide to get arc-sec/year. Why? I dunno.
Just for interest: A catalog of northern stars with annual proper motions larger than 0.15" (LSPM-NORTH catalog). http://simbad.u-strasbg.fr/simbad/sim-id?submit=display&bibdisplay=refsum&bibyear1=1983&bibyear2=2015&Ident=%404002025&Name=NLTT+19480#lab_bib
Talk: A pair of high velocity stars measure Milky Way dark matter halo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001yra?page=1&comment_id=57285b85821e1c0098003025
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Budgieye
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4.10 exoplanets https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4
Planet HuntersListed on SIMBAD example here https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0002c2t?page=1&comment_id=588f39207d25c730ea0000ab
Zooniverse website: Planet Hunters http://www.planethunters.org/ There are many dedicated planet hunters analysing the Kepler data, looking for planets.dip in star brightness indicate planet
Disk DetectivesZooniverse website Disk Detectives: http://www.diskdetective.org/ http://blog.diskdetective.org/ search for the homes of planets: stars surrounded by disks where planets form and often dwell. the data from the WISE mission that we’re examining at Disk Detective covers the whole sky.
Zooniverse website: SETILive http://www.setilive.org/? SETILive is taking the Search for Extraterrestrial Intelligence (SETI) directly to you! We present radio frequency signals LIVE from the SETI Institute's Allen Telescope Array (ATA) while it's pointed at stars that, based on Kepler exoplanet discoveries, have the best chances of being home to an alien civilization.utm_campaign=Homepage+Catalogue&utm_medium=Web&utm_source=Zooniverse+Home
SDSS MARVELS: Characterizing Extrasolar Planets The Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS) http://www.sdss.org/surveys/marvels/ "monitored the radial velocities of 11,000 bright stars, with the precision and cadence needed to detect gas giant planets that have orbital periods ranging from several hours to two years."
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Budgieye
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Index for Galaxy Zoo Talk The citizen science websites https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
5.1 Galaxy Zoo and Citizen Science 5.2 Galaxy Zoo 1 ( chirality , clockwise etc) 5.3 Galaxy Zoo 2 ( morphology) 5.4 Galaxy Zoo 3 ( Hubble images) 5.5 Galaxy Zoo 4 (includes Infrared images and BBC Stargazing Live) 5.6 Other related Galaxy Zoo projects Filter, SpaceWarps, Radio Zoo, Bar Lengths, Disk detectives, Planet Hunters, Milky Way 5.7 Twitter and Facebook 5.8 Talk, Blog and the old Forum 5.9 Upcoming Galaxy Zoo type projects LSST 5.10 ZooniverseLIST OF GALAXY ZOOS AND ASTRONOMY ZOOS
GALAXY ZOO clockwise and anticlockwise spin see 5.2 Galaxy Zoo 1 chirality (clockwise etc) http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5&comment_id=53d8ba1d0d43f77b9e000fa0
GALAXY ZOO 2 shapes of galaxies see 5.3 Galaxy Zoo 2 morphology data http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5&comment_id=53d8ba2b0d43f77bd6001018
HUBBLE ZOO (GALAXY ZOO 3) 2011-2012 high redshift clumpy galaxies see 5.4 Galaxy Zoo 3 Hubble images,http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5&comment_id=53d8ba58db90c70a2a000bf6
GALAXY ZOO 4 Infrared images see 5.5 Galaxy Zoo 4 Infrared images abd and BBC Stargazing Live http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5&comment_id=53d8ba63db90c7673f00102e
FILTER ZOO several projects Filter Zoo -- some of the earliest massive galaxies in CANDELS and GOODS infrared, Hubble
Blog: Eight years and eight different types of galaxy images July 10, 2015 by Kyle Willett http://blog.galaxyzoo.org/2015/07/10/eight-years-and-eight-different-types-of-galaxy-images/ " surveys that come from a range of telescopes, both on the ground and in space, images at a range of wavelengths, and covering different areas of the sky" with images
5.1 Galaxy Zoo and Citizen Science https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
The story so far - history of Galaxy Zoo http://www.galaxyzoo.org/#/story
The Royal Oak in Oxford where it all started.Chris Lintott and his graduate student Kevin Schawinski decide they need help to classify a million galaxies.
Kevin Schawinski had sayings..."50,000 galaxies in a week" and "So many galaxies, so little coffee."
Blog: Kevin's 10 Weeks http://blog.galaxyzoo.org/2009/04/28/kevins-10-weeks/ "Galaxy Zoo was inspired by zookeeperKevin’s PhD thesis a few years ago. Trying to find those blue ellipticals, he was running a program separating spiral from elliptical. He classified 50,000 galaxies in one week. ZookeeperChris was later heard to say in a lecture: “A PhD student will classify 50,000 galaxies before telling you exactly what you can do with the other 850,000.” (The rest is history.)"
BBC news website: Scientists seek galaxy hunt help http://news.bbc.co.uk/1/hi/sci/tech/6289474.stm
The site had so many hits in the first few hours that the server melted.
GZ website: Galaxy Zoo Forum http://www.galaxyzooforum.org/ the old Forum, now archived and read-only.
Blog: Thanks to the Forum – and Farewell by Chris Lintott July 2014 http://blog.galaxyzoo.org/2014/07/09/thanks-to-the-forum-and-farewell/
GZ website: Talk Galaxy Zoo http://talk.galaxyzoo.org/ you can talk about galaxies with other citizen scientists
Blog: Updates to Talk ay 28, 2013 by Brooke Simmons http://blog.galaxyzoo.org/2013/05/28/updates-to-talk/ migrating Talk to the latest version, which has many improvements over the old version.
FIND YOUR NAME IN THIS LIST Project Volunteers The science of Galaxy Zoo is made possible by the work of our volunteers; those who gave us permission to publish their names are included. It may be your avatar name, or your real name if you gave permission to use it. http://authors.galaxyzoo.org/authors.html#galaxyzoo
http://zooniverse-resources.s3.amazonaws.com/advent-calendar-2010/GalaxyZoo2Poster_900.jpg "A few months ago we asked anyone who felt so inclined to record their name to be added to the image which is referenced in each and every Galaxy Zoo paper. It features more than 5000 zooites spread across a beautiful Hubble image of a (clockwise) spiral galaxy, and looks fantastic!"
FIND YOUR NAME IN THIS IMAGE Galaxy Zoo 2 Author Poster The Advent Calendar poster shows the Sombrero Galaxy (M104) made up of the 51,000 names of Galaxy Zoo 2 volunteers who gave permission for us to display their names
http://adsabs.harvard.edu/abs/2010MNRAS.406..342B
Blog and video: Livestreaming from the Citizen Science Alliance meeting http://blog.galaxyzoo.org/2009/08/19/livestreaming-from-the-citizen-science-alliance-meeting/ "
Zooniverse video: Brooke Simmons talks about Galaxy Zoo http://daily.zooniverse.org/2014/06/04/brooke-talks-galaxy-zoo/
Blog: One Million for Zooniverse – and One for Galaxy Zoo! by Brooke Simmons Februray 2014 http://blog.galaxyzoo.org/2014/02/24/one-million-for-zooniverse-and-one-for-galaxy-zoo/ "Now, seven actual years, close to 30 projects, more than 60 publications, and hundreds of years’ worth of human effort later, the Zooniverse has just registered its 1,000,000th volunteer."
Galaxy Zoo website: The Galaxy Zoo Team http://www.galaxyzoo.org/#/team
Blog: Galaxy Zoo at the International Astronomical Union in Beijing, China by kevinschawinski http://blog.galaxyzoo.org/2012/08/21/galaxy-zoo-at-the-international-astronomical-union-in-beijing-china/ “A Zoo of Galaxies”
Blog and hangout: Next Hangout – Thursday March 6th, 12.00pm Taipei Standard Time by karen masters March 2014 http://blog.galaxyzoo.org/2014/03/05/next-hangout-thursday-march-6th-12-30pm-taipei-standard-time/"the Citizen Science in Astronomy workshop. If we’ve been a bit quiet it’s because we’re all working hard to get some of the more recent Galaxy Zoo classifications together from all of your clicks into information about galaxies we can make publicly available for science." http://csiaworkshop.zooniverse.org/
Blog: Our SEVEN Favourites July 11 2014 by R Smethurst http://blog.galaxyzoo.org/2014/07/11/our-seven-favourites/ Seven favourite galaxies on Galaxy Zoo's 7th birthday. Chris Lintott picked flocculent spiral galaxies, Karen Masters picked an intricate merger, Kevin Schawinski picked The Penguin galaxy as an example of the power of pattern recognition in humans, Brooke Simmons picked The Stargazing Lens from the BBC-powered search, Kyle Willet picked writing words with galaxies http://writing.galaxyzoo.org/ , Bill Keel picked Hanny's Voorwerp, Becky picked an intricate image with everything in it, and there is a Hubble Deep Field at the end.
Blog: The SEVEN wonders of Galaxy Zooby R Smethurst July 11, 2014 http://blog.galaxyzoo.org/2014/07/11/the-seven-wonders-of-galaxy-zoo/ chirality (clockwise) , blue ellipticals, red spirals, green peas, Hanny's Voorwerp, bars make galaxies redder, bulgeless galaxies with black holes.
Blog: Announcing Galaxy Zoo’s machine-learning competition (with prize money!) by Kyle Willett http://blog.galaxyzoo.org/2013/12/23/announcing-galaxy-zoos-machine-learning-competition-with-prize-money/ " upcoming telescopes like the SKA, LSST, and just-launched Gaia will have billions of new images and detected objects. This will simply be too large for citizen scientists to handle the full scope of data ...The goal for competitors is to come up with an algorithm that will predict what those classifications should be based only on the picture."
Blog and video: UPDATE: Next Live Hangout: Tuesday, 19th of November, 7 pm GMT by Brooke Simmons November 2013 http://blog.galaxyzoo.org/2013/11/14/next-live-hangout-tuesday-19th-of-november-6-pm-gmt/ Karen Masters and Steven Bamford in Chile, Brooke Simmons and. Becky ...Kyle Willet, Bell Keel talking about galaxy morphology.
Blog: Galaxy Zoo: Now Available In Chinese (Mandarin) by ttfnrob October 2013 http://blog.galaxyzoo.org/2013/10/24/galaxy-zoo-now-available-mandarin/ "led by Dr. Meg Schwamb (who is part of the Planet Hunters and Planet Four teams), a team of Taiwanese astronomers helped introduced a Chinese (Mandarin) version a Galaxy Zoo to the public on the Open House Day of Academia Sinica, the highest academic institution in Taiwan... The Education Public Outreach team of Academia Sinica’s Institute of Astronomy & Astrophysics (a.k.a. “ASIAA”), has helped translated Galaxy Zoo from English to Chinese (Mandarin)." .see http://www.galaxyzoo.org/?lang=zh 星系 is Galaxy (star group) 動物園 is Zoo (moved animals to Park) or dòngwùyuán
Blog: (Most) Galaxy Zoo Papers now Open Access August 2, 2013 by chrislintott http://blog.galaxyzoo.org/2013/08/02/most-galaxy-zoo-papers-now-open-access/ As announced on the Zooniverse blog, Oxford University Press have agreed that to make the Zooniverse papers published in Monthly Notices of the Royal Astronomical Society open access. While they’ve always been freely available on astro-ph, it’s nice that everyone who contributed can now get access – for free – via the main journal site."
Blog and video : Zooniverse Live Chat July 2013 htttp://blog.galaxyzoo.org/2013/07/10/zooniverse-live-chat/ A small team of scientists and developers from across the Zooniverse are gathered at Adler Planetarium in Chicago this week to pitch and work on ideas for advanced tools for some of your favorite Zooniverse projects.
Blog: A Galaxy Zoo science team dinner June 7, 2013 by karenlmasters http://blog.galaxyzoo.org/2013/06/07/a-galaxy-zoo-science-team-dinner/ Galaxy Zoo hosted a Specialist Discussion at the Royal Astronomical Society in London, on the topic of Morphology in the Era of Large Surveys... One of the other fun things about this meeting was that as well as the fantastic invited speakers, mostly from outside Galaxy Zoo collaboration, many members of the Galaxy Zoo science team were able to attend and contribute talks. We had representatives of team members from Minnesota, Oxford, Nottingham, Portsmouth, Hertfordshire and Zurich in attendance"
Blog and video: Next GZ Hangout: Thursday, June 6th, 15:00 GMT June 3, 2013 by Brooke Simmons http://blog.galaxyzoo.org/2013/06/03/next-gz-hangout-thursday-june-6th-1500-gmt/ upcoming meetings and various topics Brooke Simmons in Oxford, Kyle Willet in Minnesota, Kevin Schawinksi in Zurich, Karen Masters in Portsmouth
Blog: Galaxy Zoo on the "Curious" Podcast December 14, 2011 by karenlmasters http://blog.galaxyzoo.org/2011/12/14/galaxy-zoo-on-the-curious-podcast/ "the latest podcast from the people who run Ask an Astronomer @ Cornell discusses citizen science, and I’m interviewed on it about Galaxy Zoo stuff."
Blog: Bars in Spain! November 9, 2011 by Ben http://blog.galaxyzoo.org/2011/11/09/bars-in-spain/ "Recently the Spanish media has described the Google funded GZ bar drawing project. The article, which can be seen here and was based on this MNRAS paper , was written by members of the Spanish Public Agency for the Dissemination of Scientific Knowledge, (see here), which is a leading news agency in Spain."
Blog: Galaxy Zoo podcast with S and T October 7, 2011 http://blog.galaxyzoo.org/2011/10/07/galaxy-zoo-podcast-with-st/ There’s an article on Galaxy Zoo in this month’s Sky and Telescope which comes with a podcast!
Blog: Great Review of Galaxy Zoo in this week's Science July 7, 2011 http://blog.galaxyzoo.org/2011/07/07/great-review-of-galaxy-zoo-in-this-weeks-science/
Blog: Pencasting Galaxy Zoo science at dotAstro April 7, 2011 by karenlmasters http://blog.galaxyzoo.org/2011/04/07/pencasting-galaxy-zoo-science-at-dotastro/ "in Oxford this week which several of the people involved in Galaxy Zoo and the Zooinverse were attending ...A pencast is a drawing that you make while describing what you’re doing. The special pen and paper you use record both the drawing an audio which you can then put online for others to watch."
Blog: Zooniverse's Arfon Smith on NPR SciFri January 8, 2011 http://blog.galaxyzoo.org/2011/01/08/zooniverses-arfon-smith-on-npr-scifri/
Blog: Galaxy Zoo gets highlighted by the 2010 Decadal Survey August 16, 2010
by The Zooniverse http://blog.galaxyzoo.org/2010/08/16/galaxy-zoo-gets-highlighted-by-the-2010-decadal-survey/ Galaxy Zoo gets highlighted by the 2010 Decadal SurveyBlog: **Happy [3rd] birthday to us ** http://blog.galaxyzoo.org/2010/07/11/happy-birthday-to-us/
Blog: Announcing the Galaxy Zoo iPhone App June 21, 2010 http://blog.galaxyzoo.org/2010/06/21/announcing-the-galaxy-zoo-iphone-app/ "The app was developed by Oxford cosmologist Joe Zuntz, along with Arfon Smith and Stuart Lynn...The app, which will run on iPhones, iPod Touches, and iPads, lets you classify galaxies from our Hubble Galaxy Zoo project from anywhere"
Blog : Zooing all over the world Oct 2009 http://blog.galaxyzoo.org/2009/10/05/zooing-all-over-the-world/
Blog: Top 10 American Style October 27, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/10/27/top-10-american-style/
Top 10 American states for Galaxy Zoo.Blog: Get in the queue! – Scaling Galaxy Zoo October 29, 2009 by Arfon http://blog.galaxyzoo.org/2009/10/29/get-in-the-queue-scaling-galaxy-zoo-with-a-message-queue/ "Did anyone notice that ‘My Galaxies’ got a little out of date earlier this week? If you did then you might like to hear a blow-by-blow technical explanation http://www.arfon.org/scaling-galaxy-zoo-with-sqs/
Blog: The Galaxy Zoo Library September 9, 2009 by The Zooniverse links to lists of papers and explanations
Blog: Galaxy Zoo 2 in Science Festival in Warsaw – Galaktyczne Zoo na Festiwalu Nauki w Warszawie September 3, 2009
by The Zooniverse http://blog.galaxyzoo.org/2009/09/03/galaxy-zoo-2-in-science-festival-in-warsaw-galaktyczne-zoo-na-festiwalu-nauki-w-warszawie/Blog: Galaxy Zoo motivation study paper accepted! http://blog.galaxyzoo.org/2009/09/17/galaxy-zoo-motivation-study-paper-accepted/ "motivations of Galaxy Zoo users has been accepted for publication in the journal Astronomy Education Review...interviews we did with some of you to learn what makes Galaxy Zoo appeal to you"
Blog: Man vs Machine? August 2009 http://blog.galaxyzoo.org/2009/08/21/man-vs-machine/ "it important that we don’t waste your time by having you do tasks that computers are perfectly capable of completing. ...New surveys, larger, deeper and more ambitious that the Sloan are being planned; one of the largest, the Large Synoptic Survey Telescope, is estimated to produce 30 TB of data per night....That amount of data will overwhelm even the largest Zoo. We’ll need to automatically classify most of it – and more importantly use machines to decide which objects are interesting enough (or confusing enough!) to be passed to humans for more careful attention"
Blog: Greenwich meeting on Sunday August 12, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/08/12/greenwich-meeting-on-sunday/ "On the eve before the largest gathering of Zookeepers in history (for a team meeting) this is your chance to chat to some of the team who come from further afield. Confirmed victims attendees are Bill ‘NGC 3314′ Keel, Carie ‘Peas’ Cardamone and Jordan ‘Motivation study’ Raddick."
Blog: How big is the Galaxy Zoo collaboration now?July 2009 http://blog.galaxyzoo.org/2009/07/24/how-big-is-the-galaxy-zoo-collaboration-now/ Today, the Galaxy Zoo collaboration has 230,000 volunteers
Blog and video: Watch the AAS Citizen Science session now! June 2009 http://blog.galaxyzoo.org/2009/06/11/watch-the-aas-citizen-science-session-now/
Blog: Pictures from AAS June 2009 http://blog.galaxyzoo.org/2009/06/11/pictures-from-aas/ irregular galaxies project. Pamela’s poster describing the results of our survey into the reasons you participate in Galaxy Zoo:; Georgia’s poster describing our plans for future user testing of the Zoo 2 website:
Blog: Eleventh Galaxy Zoo paper submitted! http://blog.galaxyzoo.org/2009/06/18/eleventh-galaxy-zoo-paper-submitted/ “Galaxy Zoo: Exploring the Motivations of Citizen Science Volunteers,”You might have noticed that I haven’t talked about this research on the blog yet, as other team members have done with their research. I wish I could have shared more, but there was an important reason for saving all the explanation until after the paper was submitted. It is well-known in social science research that if the group being studied is aware of the study results, all sorts of unpredictable things can happen.
Blog: Why do you zoo?, part two http://blog.galaxyzoo.org/2009/05/12/why-do-you-zoo-part-two/ link to survey questions
Blog: Spread the word http://blog.galaxyzoo.org/2009/05/14/spread-the-word/ plug in that makes it easy for you to share any story on the blog that you particularly like via portals such as digg.com and facebook
Blog: Where do you Zoo? April 2009 http://blog.galaxyzoo.org/2009/04/07/where-do-you-zoo/ . London Manchester Birmingham, England New York Bristol Portland Oregon Sydney Glasgow Orlando Colchester
Blog: Galaxy Zoo Shop is open March 2009 http://blog.galaxyzoo.org/2009/03/14/galaxy-zoo-shop-is-open/ T-shirts
Blog: Galaxy Zoo on Slashdot, again March 2009 http://blog.galaxyzoo.org/2009/03/19/galaxy-zoo-on-slashdot-again/ “I’m a physics teacher and have been wondering what ways it’s possible to get students to participate in or donate to real science projects. I encourage my students to help out with things like Galaxy Zoo (which has just released a new version).."
where?Blog: Where in the world? March 2009 http://blog.galaxyzoo.org/2009/03/30/where-in-the-world/
Blog: Galaxy Zoo amongst "Top 10 Scientific Endeavours of 2008" http://blog.galaxyzoo.org/2009/01/12/galaxy-zoo-amongst-top-10-scientific-endeavours-of-2008/
Blog: Galaxy Zoo meetup in New York, February 7th January 2009 http://blog.galaxyzoo.org/2009/01/12/galaxy-zoo-meetup-in-new-york-february-7th/
Blog: Kevin and Jordan at AAS January 2009 http://blog.galaxyzoo.org/2009/01/13/kevin-and-jordan-at-aas/
Blog: Calling A Level students : Want to be a Zookeeper? January 2009 http://blog.galaxyzoo.org/2009/01/18/calling-a-level-students-want-to-be-a-zookeeper/ two Nuffield bursaries
Blog: Galaxy Zoo Goes to Bristol January 2009 http://blog.galaxyzoo.org/2009/01/21/galaxy-zoo-goes-to-bristol/ peas and Galaxy Zoo
Blog: If we can make it there, we'll make it anywhere February 3, 2009 http://blog.galaxyzoo.org/2009/02/03/if-we-can-make-it-there-well-make-it-anywhere/by Kevin and Jordan at AAS http://blog.galaxyzoo.org/2009/02/07/live-from-new-york-its-galaxy-zoo/
Blog: Galaxy Zoo in the News: Science Magazine http://blog.galaxyzoo.org/2009/01/25/galaxy-zoo-in-the-news-science-magazine/ Hanny's Voorwerp and SDSS
Blog and audio: Galaxy Zoo goes to Bristol part 2: Alice's Talk by Alice http://blog.galaxyzoo.org/2009/01/26/galaxy-zoo-goes-to-bristol-part-2-alices-talk/
Blog: Happy Thanksgiving from Galaxy Zoo! by milk_n_cookies http://blog.galaxyzoo.org/2008/11/27/happy-thanksgiving-from-galaxy-zoo/ with galaxy image that looks like a turkey
Blog: Guest Blog: Newbie at Heart by ThomasJ October 2008 http://blog.galaxyzoo.org/2008/10/07/guest-blog-newbie-at-heart/ "It was within a few clicks that I just stopped, sat back, and stared at the screen for a moment, realizing what was in the image before me. I was looking at a galaxy, an entire system containing billions of stars/suns, floating billions of light years away."
Blog: Galaxy Zoo West Coast Meet Up by Michelle October 2008 http://blog.galaxyzoo.org/2008/10/10/galaxy-zoo-west-coast-meet-up/ Zooites of the U.S. West Coast organized a meeting.
Blog: Hunting Programs for all by waveney October 2008 http://blog.galaxyzoo.org/2008/10/27/351/ wrote computer code for 3 Hunts, Mergers, Peas and Irregulars
Blog: Where does everyone come from? September 2008 http://blog.galaxyzoo.org/2008/09/05/where-does-everyone-come-from/ The United States The United Kingdom Netherlands Canada Germany Brazil France Greece Australia India......
Blog: Welcome football fans! http://blog.galaxyzoo.org/2008/09/16/welcome-football-fans/ Hello to everyone that found Galaxy Zoo today through Gregg Easterbrook’s Tuesday Morning Quarterback column on espn.com
Blog: Guest Blog: Memories of the Antipodes by Geoff Roynon. August 2008 http://blog.galaxyzoo.org/2008/09/26/guest-blog-memories-of-the-antipodes/ Soon after I started classifying I also joined the Galaxy Zoo forum and had the same “newbie” problems as everyone else when trying to post objects and links in the threads. The forum is the best one I have been a member of due to the helpfulness of the other users and moderators, and the short shrift given to trolls and other trouble makers. It was a bit daunting at first with all the different threads containing different aspects of what is going on in the Zoo. One of the great things about the forum is the discussions that start up about different aspects of astronomy, for instance, galaxy spectra, which ended up with a “tutorial” written by one of the resident astronomers and posted to the forum for anyone to read.
Blog: The Zoo goes to Intech Planetarium by Alice August 2008 http://blog.galaxyzoo.org/2008/08/09/the-zoo-goes-to-winchester-planetarium/ a talk on many current Galaxy Zoo projects
Blog:Galaxy Zoo Poster Available http://blog.galaxyzoo.org/2008/08/11/galaxy-zoo-poster-available/
Blog: Galaxy Zoo meetups in North America? Aug 2008 http://blog.galaxyzoo.org/2008/08/28/galaxy-zoo-meetups-in-north-america/
Blog: Come and Join Us! by Jules Aug 2008 http://blog.galaxyzoo.org/2008/08/29/come-and-join-us/ On classiftying and the forum
Blog: The Dreaming Spires by Alice July 2008 http://blog.galaxyzoo.org/2008/07/07/the-dreaming-spires/ on Oxford
Blog: It was a year ago today… Chris Lintott July 10, 2008 http://blog.galaxyzoo.org/2008/07/10/it-was-a-year-ago-today/
Blog: The State of the Zoo July 2008 http://blog.galaxyzoo.org/2008/07/11/the-state-of-the-zoo/
Blog: Happy First Birthday, Galaxy Zoo! July 2008 http://blog.galaxyzoo.org/2008/07/11/happy-first-birthday-galaxy-zoo/ card made of galaxies
Blog: Want to work for Galaxy Zoo? July 2008 http://blog.galaxyzoo.org/2008/07/20/want-to-work-for-galaxy-zoo/ there’s a job advert on the Oxford Physics site that might interest you.
Blog: Galaxy Zoo Forum downtime June 2008 http://blog.galaxyzoo.org/2008/06/02/galaxy-zoo-forum-downtime/ http://blog.galaxyzoo.org/2008/07/07/the-forum-is-back-online/
Blog: The biggest astronomical collaboration in history… just how big? June 2008 http://blog.galaxyzoo.org/2008/06/03/the-biggest-astronomical-collaboration-in-history-just-how-big/ AAS meeting in St. Louis.
Blog: Galaxy Zoo Meet-up on Tuesday Chris Lintott June 2008 http://blog.galaxyzoo.org/2008/06/09/galaxy-zoo-meet-up-on-tuesday/ after talk on upgrading of Hubble Space Telescope
Blog: Another Zoo meetup, and a Zoo celebrity meets some of the team May 2008 http://blog.galaxyzoo.org/2008/05/14/another-zoo-meetup-and-a-zoo-celebrity-meets-some-of-the-team/ "Hanny first visited some of the Zoo members here at the Institute of Cosmology and Gravitation in Portsmouth, workplace of Zoo team members Daniel, Steven and Bob (and of course myself)."
Blog: Join us online tomorrow May 2008 http://blog.galaxyzoo.org/2008/05/14/join-us-online-tomorrow/ "you can join us (virtually) via UStream "
Blog: Merger hunting one month on by waveney May 2008 http://blog.galaxyzoo.org/2008/05/17/merger-hunting-one-month-in/
"offered to provide a web page to do the merger hunting.. wrote SQL..the Merger hunters climbed from 200 to 700, and 20,000 images were seen.." the sever didn't melt
Blog: A Big Thanks to all our Collaborators! May 2008 http://blog.galaxyzoo.org/2008/05/28/a-big-thanks-to-all-our-collaborators/ names of over 100,000 people on the poster..with link
Blog: Public talk – online June 2008 http://blog.galaxyzoo.org/2008/06/30/public-talk-online/#comments
Blog: The Story of Galaxy Zoo May 13, 2008 by The Zooniverse http://blog.galaxyzoo.org/2008/05/13/the-story-of-galaxy-zoo/ "Devin Powell asking to interview some of you to write the story of Galaxy Zoo. The resulting article is now online here. It’s a wonderful piece:http://krieger.jhu.edu/magazine/sp08/f1.html "
Blog: Caption competition April 2008 http://blog.galaxyzoo.org/2008/04/28/caption-competition/
Blog: Caption competition results http://blog.galaxyzoo.org/2008/04/30/caption-competition-results/ " two winners: pluk (“Bill: “No Chris, it’s not your turn yet, Anna had a match”) and Curtis (“After the witnesses identified the suspects from the photo lineup, they were quickly arrested.”"
Blog: Galaxy Zoo Poster – Improved Greatly by Julia http://blog.galaxyzoo.org/2008/03/06/83/ with link to poster
Blog: First paper submitted http://blog.galaxyzoo.org/2008/03/25/first-paper-published/
Blog: What happens next… Peer Review http://blog.galaxyzoo.org/2008/03/28/what-happens-next-peer-review/ "Good scientists spend most of their time arguing against the effects they see in their own data, to avoid falling into traps of seeing only what they expect to see. "
Blog: The World of Galaxy Zoo – part 1 of 2 by Alice http://blog.galaxyzoo.org/2008/03/31/the-world-of-galaxy-zoo-part-1-of-2/ "I don’t know quite what it is, but Galaxy Zoo does something to people. "
Blog: Keep watching the skies! http://blog.galaxyzoo.org/2008/02/04/keep-watching-the-skies/ "The more we look at the sky, the more likely we are to see something interesting. That’s the guiding principle of astronomy, of the Sloan Digital Sky Survey, and now of Galaxy Zoo."
Blog: Reading the drafts http://blog.galaxyzoo.org/2008/02/18/reading-the-drafts/ the first papers being written
Blog: Galaxy Zoo: Behind the scenes Feb 2008 http://blog.galaxyzoo.org/2008/02/21/galaxy-zoo-behind-the-scenes/ the computer coding and web design of Galaxy Zoo "The site was designed by two professional web designers: Phil Murray and Dan Andreescu....Dan left the project in late 2007, and Danny Locksmith has taken over the coding.. visual design.. logo... GZ1.0 no member of the team has ever met all the other members face-to-face. "
Blog: Galaxy Zoo: the poster Jan 2008 http://blog.galaxyzoo.org/2008/01/15/galaxy-zoo-the-poster/ introducting the concept of Galaxy Zoo and citizen science
Blog: Speak your weight January 3, 2008 by Kate http://blog.galaxyzoo.org/2008/01/03/speak-your-weight/ "it’s a bad idea to publish users weights for a number of reasons – but mainly because it is very unclear what the weights really say about a user."
Blog and audio: AAS Talk http://blog.galaxyzoo.org/2008/01/17/aas-talk/ first 6 months of Galaxy Zoo
Forum: Index of Galaxy Zoo Projects by Alice 2009 http://www.galaxyzooforum.org/index.php?topic=276706.0
Published papers in Galaxy Zoo
Publication: Creativity in citizen cyberscience: All for one and one for all, Jennett+ 2013. http://ac.aup.fr/~croda/tclab/creativity&attention2013Material/CharleneJennett.pdf creativity and fun in learning
Publication: Learning by volunteer computing, thinking and gaming: What and how are volunteers learning by participating in Virtual Citizen Science?, Kloezter+ 2013 http://ebwb.hu-berlin.de/aktuelles/esrea/conference-programme/esrea-book-of-abstractsSession 38 "informal and social aspects in adult learning and science education and also stresses the importance for learning through the indirect opportunities provided by the project: the
main one being the opportunity to participate and progress in a project community,
according to one's tastes and skills." ie. the forum and TalkPublication: Dynamic Bayesian Combination of Multiple Imperfect Classifiers by Simpson, Edwin; Roberts, Stephen; Psorakis, Ioannis; Smith, Arfon http://adsabs.harvard.edu/abs/2012arXiv1206.1831S "community structure of the decision makers, based on their inferred decision making strategies, and show that natural groupings are formed."
Publication: Galaxy Zoo: Motivations of Citizen Scientists M. Jordan Raddick, Georgia Bracey, Pamela L. Gay, Chris J. Lintott, Carie Cardamone, Phil Murray, Kevin Schawinski, Alexander S. Szalay, Jan Vandenberg Astronomy Education Review http://arxiv.org/abs/1303.6886 volunteers' primary motivation is a desire to contribute to scientific research
Publication: Galaxy Zoo Volunteers Share Pain and Glory of Research by Clery, Daniel in Science http://adsabs.harvard.edu/abs/2011Sci...333..173C
Publication: Galaxy Zoo Morphology and Photometric Redshifts in the Sloan Digital Sky Survey Way, M. J. http://adsabs.harvard.edu/abs/2011ApJ...734L...9W "results of classifying spirals and ellipticals can help teach machines to do the same.
Publication: Galaxy Zoo: reproducing galaxy morphologies via machine learning by Banerji, Manda; Lahav, Ofer; Lintott, Chris J.; Abdalla, Filipe B.; Schawinski, Kevin; Bamford, Steven P.; Andreescu, Dan; Murray, Phil; Raddick, M. Jordan; Slosar, Anze; Szalay, Alex; Thomas, Daniel; Vandenberg, Jan http://adsabs.harvard.edu/abs/2010MNRAS.406..342B use machine-learning algorithms to perform morphological classification, based on the classifications of 100,000 volunteers
Publication: Galaxy Zoo: Exploring the Motivations of Citizen Science Volunteers by Raddick, M. Jordan; Bracey, Georgia; Gay, Pamela L.; Lintott, Chris J.; Murray, Phil; Schawinski, Kevin; Szalay, Alexander S.; Vandenberg, Jan http://adsabs.harvard.edu/abs/2010AEdRv...9a0103R
Forum: Wednesday, 20th February, 2013: Zooites as 'Click Data' by JeanTate http://www.galaxyzooforum.org/index.php?topic=280647.0 "those who designed Supernova Zoo allowed three possible outcome scores for each classification ('click'): -1, 1, and 3...whether zooites could be grouped into "communities", based on their pattern of clicks. "There were 5 categories of classifiers, based on their certainty of clicking. This study was made after further investigation of the supernova candidates
Feedback on classification: I will try to answer for the scientists. Nobody knows how they do on classification. It ruins the statistics gathered, if information is given out. A classifier gets better with practice, and his/her classifications get a higher reliability score, but no one ever finds out what is it. https://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh?page=9&comment_id=574be5864d3441111f001556
by klmasters ADMIN, SCIENTIST One way you can get some feedback if you wish to is to classify in a group (it can be a group of one person) and then use the Navigator tools to explore the galaxies you've classified in a group. This is a tool we've found to be popular with educators, but is available to all.
Try it out here: http://www.galaxyzoo.org/#/navigator/home
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Budgieye
moderator
5.2 Galaxy Zoo 1 chirality (clockwise etc) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
image from Lintott http://mnras.oxfordjournals.org/content/389/3/1179.full
website: The archived Galaxy Zoo 1 website http://zoo1.galaxyzoo.org/Default.aspx
BBC news website: Scientists seek galaxy hunt help July 11, 2007 http://news.bbc.co.uk/1/hi/sci/tech/6289474.stm
Blog: Galaxy Zoo data in SDSS by Kyle Willett http://blog.galaxyzoo.org/2013/07/31/sdss-data-release-10-and-galaxy-zoo-2/ data for spiral, elliptical, edge-on, and merger. Your clicks are now in SDSS !
Galaxy Zoo website: Galaxy Zoo 1 data release. http://data.galaxyzoo.org/ "All the data that has been collected can be accessed in SDSS dr10 and dr8"
Blog Galaxy Zoo data in SDSS by Kyle Willett http://blog.galaxyzoo.org/2013/07/31/sdss-data-release-10-and-galaxy-zoo-2/ data for spiral, elliptical, edge-on, and merger. Galaxy Zoo data is now in SDSS and contributing to scientific research !
Blog: Zoo 1 data set free http://blog.galaxyzoo.org/2010/07/27/zoo-1-data-set-free/ " The data can also be downloaded in a variety of formats from our site, or via Casjobs."
Blog Live from the AAS International Year of Astronomy Press Conference, part 2 June 2009 http://blog.galaxyzoo.org/2009/06/09/live-from-the-aas-international-year-of-astronomy-press-conference-part-2/ 1 million galaxies in 100 hours. We thought this was an ambitious goal, but you did 2.6 million!..“Old Galaxies Spin in Sync” discovery that Raul Jimenez posted . 1-3% of galaxies are undergoing major mergers
Blog: Paper number 6 online… Paper number 6 online… Chirality
Blog? Old galaxies spin in sync June 8, 2009 by Raul Jimenez http://blog.galaxyzoo.org/2009/06/08/old-galaxies-spin-in-sync/ "What is happening is that in the past the cluster of galaxies was not yet formed and the spiral galaxies that the galaxy zoo has been classifying by morphology were coming down the filamentary structure into the proto-clusters. Because the proto-cluster already contains the big elliptical galaxies, they provide the same “pull” on all the spiral galaxies in the filament. "
Blog: Spin correlations, part I http://blog.galaxyzoo.org/2008/09/09/spin-correlations-part-i/ spin vectors
Blog: Spin correlations, part II September 2008 http://blog.galaxyzoo.org/2008/09/10/spin-correlations-part-ii/ The major news of our new spin paper is that we seem to have an indications that the actual spins are somewhat correlated, when the galaxies under consideration are very close together.
Blog: Handedness and the Zoo on the BBC August 2008 http://blog.galaxyzoo.org/2008/08/12/handedness-and-the-zoo-on-the-bbc/ There’s a brief segment on BBC’s Science in Action programme on Galaxy Zoo in general and the handedness result (which many of you followed on the blog and helped with the bias study.).
Blog: In the eye of the beholder? January 10, 2008 by Kate & Anze http://blog.galaxyzoo.org/2008/01/10/in-the-eye-of-the-beholder/
Blog: Final pre-bias data download January 1, 2008 by The Zooniverse http://blog.galaxyzoo.org/2008/01/01/final-pre-bias-data-download/
Blog: The Bias Study Dec 2007 http://blog.galaxyzoo.org/2007/12/31/the-bias-study/ tecnical computer analysis
Follow the arms from outside to in
That is the way that galaxies spin.
Zooniverse Letters http://letters.zooniverse.org/ In-house publication of science results,
Curious pattern in handedness asymmetries by Jean Tate 2013 "the apparent handedness of nearby spiral galaxies"Publication: Galaxy Zoo 1: data release of morphological classifications for nearly 900 000 galaxies by Lintott, Chris; Schawinski, Kevin; Bamford, Steven; Slosar, A; Land, Kate; Thomas, Daniel; Edmondson, Edd; Masters, Karen; Nichol, Robert C.; Raddick, M. Jordan; Szalay, Alex; Andreescu, Dan; Murray, Phil; Vandenberg, Jan http://adsabs.harvard.edu/abs/2011MNRAS.410..166L "This publication has been made possible by the participation of more than 100 000 volunteers in the Galaxy Zoo project"
Publication: Galaxy Zoo: a correlation between the coherence of galaxy spin chirality and star formation efficiency by Jimenez, Raul; Slosar, Anže; Verde, Licia; Bamford, Steven; Lintott, Chris; Schawinski, Kevin; Nichol, Robert; Andreescu, Dan; Land, Kate; Murray, Phil; Raddick, M. Jordan; Szalay, Alex; Thomas, Daniel; Vandenberg, Jan http://adsabs.harvard.edu/abs/2010MNRAS.404..975J Very distant and therefore young galaxies have a slight alignment of spin direction, probably from being formed from the filament.
Publication: Galaxy Zoo: chiral correlation function of galaxy spins by Slosar, Anže; Land, Kate; Bamford, Steven; Lintott, Chris; Andreescu, Dan; Murray, Phil; Nichol, Robert; Raddick, M. Jordan; Schawinski, Kevin; Szalay, Alex; Thomas, Daniel; Vandenberg, Jan http://adsabs.harvard.edu/abs/2009MNRAS.392.1225S possible correlation, further investigations must consider substructure of the neighbourhood, and selection parameters.
Publication: Galaxy Zoo: the large-scale spin statistics of spiral galaxies in the Sloan Digital Sky Survey by Land, Kate; Slosar, Anže; Lintott, Chris; Andreescu, Dan; Bamford, Steven; Murray, Phil; Nichol, Robert; Raddick, M. Jordan; Schawinski, Kevin; Szalay, Alex; Thomas, Daniel; Vandenberg, Jan http://adsabs.harvard.edu/abs/2008MNRAS.388.1686L no significant difference in spin direction found in the large scale universe
Forum: Forum:Friday 3rd July 2009 - Spiral Pairs by Geoff http://www.galaxyzooforum.org/index.php?topic=275616.0 "I’ve often wondered, when looking at pictures of pairs of spiral galaxies, whether the spin of a galaxy would affect nearby galaxies,"
Forum: Wednesday, 13th July, 2011: What do you think of this? by JeanTate http://www.galaxyzooforum.org/index.php?topic=279300.0 " zooite classifications "clockwise spiral", and "anticlockwise spiral" ..how do our classifications match those of Longo (and his five grad students, who were the "scanners")?"
Forum: Wednesday, 24th April, 2013: Blast from the Past by JeanTate http://www.galaxyzooforum.org/index.php?topic=280748.0 The results from the clockwise-anticlockwise database, how did Zooites vote on some of the galaxies?
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Budgieye
moderator
5.3 Galaxy Zoo 2 morphology data https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
Galaxy Zoo 2 website http://www.galaxyzoo.org/#/classify
Forum: Friday 14th (all right, Saturday 15th) January 2011: an experiment by Alice http://www.galaxyzooforum.org/index.php?topic=278785.0 How does the presence of an AGN affect classification of galaxies? fake AGN
Blog: More on our fake AGN by Chris Lintott Jan 2011 http://blog.galaxyzoo.org/2011/01/12/more-on-our-fake-agn/
Blog: Fake? AGN Galaxies! by Carie http://blog.galaxyzoo.org/2011/01/11/fake-agn-galaxies/
Forum: "Fake AGN" discussion here http://www.galaxyzooforum.org/index.php?topic=278768.0Where are all my favourite galaxies from the older Zoos?
for Galaxy Zoo 2, log onto http://zoo2.galaxyzoo.org/ and click on my favourites
for Hubble Zoo, log onto http://hubble.galaxyzoo.org/ and click on my favourites, or try
https://login.zooniverse.org/login?service=http%3A%2F%2Fhubble.galaxyzoo.org%2Fmy_galaxies
Practice classifying galaxies http://zoo2.galaxyzoo.org/how_to_take_part
Blog: SDSS Data Release 10 and Galaxy Zoo 2 by Kyle Willett http://blog.galaxyzoo.org/2013/07/31/sdss-data-release-10-and-galaxy-zoo-2/ elliptical vs Spiral data in SDSS dr 8 Galaxy Zoo data in SDSS
Blog: Galaxy Zoo 2 data release August 19, 2013 by chrislintott http://blog.galaxyzoo.org/2013/08/19/galaxy-zoo-2-data-release/ " Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey..results provide data on bars, on the number of spiral arms and on much more besides"
Blog: Using Galaxy Zoo Classifications – a Casjobs Example August 1, 2013 by karenlmasters http://blog.galaxyzoo.org/2013/08/01/using-galaxy-zoo-classification-a-casjobs-example/ " you need to go to CasJobs (make sure it’s the SDSS-III CasJobs and not the one for SDSS-I and SDSS-II which is a separate page and only includes SDSS data up to Data Release 7), sign up for a (free) account, and paste these code bits into the “Query” tab."
Blog: SDSS Data Release 10 and Galaxy Zoo 2 July 31, 2013 by Kyle Willett http://blog.galaxyzoo.org/page/7/ Data Release 10 (DR10) is now available to both the general astronomy community and to the public. .. includes new data from BOSS, which has been measuring redshifts for distant galaxies in order to measure cosmological parameters and study structure formation...that data from Galaxy Zoo 2 is available"
Blog: Galaxy Zoo classifications in SDSS Database January 12, 2011 by karenlmasters http://blog.galaxyzoo.org/2011/01/12/galaxy-zoo-classifications-in-sdss-database/ " but one thing which might have passed your notice is that as part of this data release your Galaxy Zoo classifications (from the first phase of Galaxy Zoo) have been integrated into the SDSS public database (CasJobs). This will make GZ1 classifications all that more accessible for professional (and amateur?) astronomers to use in their research, "
Blog: Galaxy Zoo auf Deutsch! March 12, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/03/12/galaxy-zoo-auf-deutsch/
Blog: 60 Million Classification Giveaway March 30, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/03/30/60-million-classification-giveaway/ The person who classifies the 60 millionth galaxy will win an original Sloan Digital Sky Survey plate.
Blog: Zoo 2 now available in Polish July 2009 http://blog.galaxyzoo.org/2009/07/29/zoo-2-now-available-in-polish/
http://blog.galaxyzoo.org/2009/07/29/galaktyczne-zoo-faza-ii-juz-po-polsku/Blog: I have a confession… http://blog.galaxyzoo.org/2009/04/07/i-have-a-confession/ we reached our goal of 1 million clicks about 12:45pm on the Saturday a mere 72 hours into the challenge!
Blog: 20 Million April 3, 2009 http://blog.galaxyzoo.org/2009/04/03/20-million/
Blog: The millionth click http://blog.galaxyzoo.org/2009/04/04/the-millionth-click/
Blog: Halfway through, 700,000 galaxies done http://blog.galaxyzoo.org/2009/04/03/halfway-through-700000-galaxies-done/
Blog: Kevin's 10 Weeks April 2009 http://blog.galaxyzoo.org/2009/04/28/kevins-10-weeks/ how many galaxies can we classify?
Blog; Inverted images in Galaxy Zoo by Arfon http://blog.galaxyzoo.org/2009/03/13/inverted-images-in-galaxy-zoo/ The inverted images can be useful in bringing out hints of structure that are otherwise hard to spot
Blog: Fifteen millionby Arfon Smith http://blog.galaxyzoo.org/2009/03/15/fifteen-million/ classifications
Blog: This is my first time…. February 2009 http://blog.galaxyzoo.org/2009/02/19/this-is-my-first-time/ "we already have 2 million classification, so you guys are averaging a million galaxies a day...Thirty years ago the arrival of CCD digital detectors on telescope revolutionized the way we did astronomy."
Blog: Our New Infrastructure by Arfon Smith February 2009 http://blog.galaxyzoo.org/2009/02/20/our-new-infrastructure/ Galaxy Zoo 2 launched ..3.7 million classifications in just over three days ..Galaxy Zoo is now hosted on Amazon Web Services...Zoo 2 site is now written in the web framework Ruby on Rails."
Blog: This evening's downtime Feb 2009 http://blog.galaxyzoo.org/2009/02/19/this-evenings-downtime/ our database server failed and due to the sheer number of classifications that you have all been making it took significantly longer than expected to restore the database from backup. I can assure you that we didn’t loose any of your classifications. Your hard work has not been wasted! I’m pleased to say that the site is now running well again and tomorrow I’m going to be working on making our database more resilient so that this doesn’t happen again
BBC news website: Galaxy hunt draws massive traffic Feb 20, 2009 http://news.bbc.co.uk/1/hi/sci/tech/7899658.stm
Blog: A new Zoo world…[Galaxy Zoo 2 by Chris Lintott February 2009 http://blog.galaxyzoo.org/2009/02/21/a-new-zoo-world/ TV appearances to publicize the opening.
Blog: Zoo 2 Launches! February 16, 2009 http://blog.galaxyzoo.org/2009/02/16/zoo-2-launches/ "you’ll notice a few new features; for starters, the images are hosted on our brand new server system at Amazon web services, so you should be able to classify as quickly as you like without us slowing you down...thank you to the team who put Zoo 2 together, particularly Arfon,"
images of 2010Blog: Galaxy Zoo Image of the Year Dec 2010 http://blog.galaxyzoo.org/2010/12/19/galaxy-zoo-image-of-the-year/
600 common forum wordsBlog: A Very Forum Christmas http://blog.galaxyzoo.org/2010/12/09/a-very-forum-christmas/
Blog: My Galaxies ++ February 2009 http://blog.galaxyzoo.org/2009/02/25/my-galaxies/ "you can now see all of the favourites that you have added in order of most recent first. I’ve also added a history of your galaxies "
Blog: 'My Galaxies' is Back! by Arfon Februrary 2009 http://blog.galaxyzoo.org/2009/02/20/my-galaxies-is-back/ after some problems
Blog: Zoo 2 arrives… October 2008 http://blog.galaxyzoo.org/2008/10/21/zoo-2-arrives/
Kevin, Chris, AliceBlog: Beta-Testing Zoo 2 by Alice July 2008 http://blog.galaxyzoo.org/2008/07/10/beta-testing-zoo-2/
Blog: Inside the first results Dec 2007 http://blog.galaxyzoo.org/2007/12/27/inside-the-first-results/ 4 papers being prepared.
Publication: Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey by Kyle W. Willett , Chris J. Lintott , Steven P. Bamford , Karen L. Masters , Brooke D. Simmons, Kevin R.V. Casteels , Edward M. Edmondson, Lucy F. Fortson, Sugata Kaviraj , William C. Keel , Thomas Melvin, Robert C. Nichol , M. Jordan Raddick , Kevin Schawinski , Robert J. Simpson , Ramin A. Skibba , Arfon M. Smith , Daniel Thomas Cosmology and Nongalactic Astrophysics http://arxiv.org/abs/1308.3496 "bars, bulges, and the shapes of edge-on disks, as well as quantifying the relative strengths of galactic bulges and spiral arms."
How did other people classify a galaxy?Talk: Node Tree Galaxy Zoo http://visualize.galaxyzoo.org/
Blog: Explore Galaxy Zoo Classifications April 27, 2015 by karenlmasters (Coleman Krawczyk) "For a guided tour of this tool click the “Take a tour” button, and for a full list of features click the “Help” button."
Blog: Visualizing the decision trees for Galaxy Zoo by April 6, 2015 by Kyle Willett (Coleman Krawczyk) http://blog.galaxyzoo.org/2015/04/06/visualizing-the-decision-trees-for-galaxy-zoo/
http://inspirehep.net/record/1119351/files/fig1_gz2chart.png
http://inspirehep.net/record/1119351?ln=enPosted
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by
Budgieye
moderator
5.4 Galaxy Zoo 3 Hubble images https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
http://d1jqu7g1y74ds1.cloudfront.net/wp-content/uploads/2010/04/Screen-shot-2010-04-22-at-13.54.38.png
http://www.galaxyzoo.org/#/astronomers
The HST images are from CANDELS, the largest HST Treasury Program. This survey is designed to take advantage of the advent of Wide Field Camera 3 (WFC3), which is rapidly opening up a new window into galaxies at z > 1 – the first 50% of the lifetime of the Universe.
Talk: (Hubble Zoo March 2015) New GOODS GZ images, a science question http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001c5t?page=1&comment_id=551a5ab990ecf566df000007 Technical information on the filters used.
Forum: Galaxy Zoo: Hubble forum http://www.galaxyzooforum.org/index.php?board=33.0 A mini-forum, where Hubble images have been posted.
Blog: New Images on Galaxy Zoo, Part 1 March 27, 2015 by karenlmasters http://blog.galaxyzoo.org/2015/03/27/new-images-on-galaxy-zoo-part-1/ "We’re delighted to announce that we have some new images on Galaxy Zoo for you to classify! There are two sets of new images: 1. Galaxies from the CANDELS survey The new CANDELS images, however, are slightly shallower than before. The main reason that these are being included is to help us get data measuring the effect of brightness and imaging depth for your crowdsourced classifications 2. Galaxies from the GOODS survey the GOODS images are made from more HST orbits and are deeper, so you should be able to better see details"
Blog and Hangout Video: Clicking 10 Billion Years Into The Past by Brooke Simmons June 2013 http://blog.galaxyzoo.org/2013/06/08/clicking-10-billion-years-into-the-past/ a video and hangout discussing the CANDELS images. "During this hangout, we announced that your clicks and classifications of the CANDELS galaxies have been moving at such an impressive rate that the first round is finished."
"when you classify a galaxy from CANDELS, you may be looking three-quarters of the way to the edge of the visible universe, and seeing the galaxy as it was 10 billion years ago. "Blog and Video: Blood Oranges are just like Hubble Galaxies by Brooke Simmons 2013http://blog.galaxyzoo.org/2013/03/22/blood-oranges-are-just-like-hubble-galaxies/ "Some of the faint galaxies on Galaxy Zoo are among the most distant galaxies ever imaged by the Hubble Space Telescope, and we don’t necessarily expect them to look like galaxies we see more nearby..."
Blog: First Result from Galaxy Zoo Hubble by Tom Melvin January 2014 http://blog.galaxyzoo.org/2014/01/16/first-result-from-galaxy-zoo-hubble/ "We can make the reasonable assumption that, by eight billion years ago, the majority of massive disk galaxies have formed, and have been, and continue to form bars up to the present day ...these low mass disks are forming bars at a similar rate up to the present day, but the difference with this low mass sample is that there are still low mass disks forming up to the present day as well "
Where are all my favourite galaxies from the older Zoos?
https://login.zooniverse.org/login?service=http%3A%2F%2Fhubble.galaxyzoo.org%2Fmy_galaxiesCandels http://candels.ucolick.org/data_access/Latest_Release.html The Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS; Grogin et al. 2011; Koekemoer et al. 2011) is designed to document the first third of galactic evolution from z = 8 to 1.5 via deep imaging of more than 250,000 galaxies with WFC3/IR and ACS. It will also discover and characterize Type Ia SNe beyond z > 1.5 and establish their accuracy as standard candles for cosmology.
The survey targets five premier multi-wavelength sky regions; each has multi-wavelength data from Spitzer and other facilities plus extensive spectroscopy of the brighter galaxies. The use of five widely separated fields mitigates cosmic variance and yields statistically robust and complete samples of galaxies down to 109 solar masses out to redshift z ~Blog: Hubble Zoo: Summer Research Starts! June 10, 2011 by Anna Han http://blog.galaxyzoo.org/2011/06/10/hubble-zoo-summer-research-starts/ " I’m currently working with images of galaxies observed by Hubble that you as members helped classify on Galaxy Zoo"
simulated AGNBlog: Simulated AGN: An Example March 3, 2011 by Brooke Simmons http://blog.galaxyzoo.org/2011/03/03/simulated-agn-an-example/ "here is an example of one of the 116 galaxies that we used to create the 1740 simulated AGN in the sample... its presence affect the classification of the underlying galaxy (if at all)?"
Blog: More on our fake AGN January 12, 2011 by Chris http://blog.galaxyzoo.org/2011/01/12/more-on-our-fake-agn/ £The aim is to test whether the presence of such an AGN affects the classification of the shape of the galaxy."
Blog: Motivation to Simulate AGN March 1, 2011 by Brooke Simmons http://blog.galaxyzoo.org/2011/03/01/motivation-to-simulate-agn/ " the presence of a central brightness from an AGN does affect the measured properties of the AGN host galaxy, when that central point source becomes too bright."
Blog: Simulating AGN March 1, 2011 http://blog.galaxyzoo.org/2011/03/01/simulating-agn/ "we were wondering how much a bright-ish point source might alter our ability to determine the host galaxies classifications. (Note: this is not an issue of the ability of Zooites to classify galaxies, but a question of when the brightness of the central AGN begins to hide or distort the visible features of the galaxy.)"
Blog: The Science Behind Classifying Simulated AGN by Brooke Simmons http://blog.galaxyzoo.org/2011/03/01/why-classify-simulated-agn/ "In the field of galaxy evolution, it’s now clear there is some sort of mechanism that affects both the evolution of galaxies and the growth of their central black holes together, but we don’t really understand what it is (or what they are) — yet. In terms of scale, it’s rather incredible that they are connected at all. We may call them supermassive black holes, but they’re generally a small percentage of the total galaxy mass, and they’re absolutely tiny when compared to the size of the galaxy...However, for all but very local galaxies, it’s very difficult to see a signal from a galaxy’s central SMBH amid all the stellar light from the galaxy. So, we turn to that subset of SMBHs that are actively accreting matter, which in turn heats up and discharges enormous amounts of energy as it falls into the gravitational potential of the black hole. Those, which we call active galactic nuclei (AGN), we can see much more easily, and out to very high redshift. ..the simulations are crucial because they both let us know the limits of our classification methods and, just as importantly, enable us to quantify precisely how confident we are that the classifications are accurate."
Blog: Preparing the pixels January 4, 2011 by The Zooniverse http://blog.galaxyzoo.org/2011/01/04/preparing-the-pixels/ " For the launch of Galaxy Zoo: Hubble, data was taken from several surveys:
GOODS: The Great Observatories Origins Deep Survey
GEMS: Galaxy Evolution from Morphology and SEDs
AEGIS: All-wavelength Extended Groth strip International Survey
We’ve also recently added in COSMOS: Cosmic Evolution Survey images – more about the nitty gritty details of those images in a future post.... For the HST images we instead use one image for red, another for blue, and then just take the average of the two for green"Blog: More on our fake AGN January 12, 2011 by Chris http://blog.galaxyzoo.org/2011/01/12/more-on-our-fake-agn/ £The aim is to test whether the presence of such an AGN affects the classification of the shape of the galaxy."
Blog: New content. New images. A refreshed Galaxy Zoo Dec 2010 http://blog.galaxyzoo.org/2010/12/21/new-content-new-images-a-refreshed-galaxy-zoo/ COSMOS images now in Galaxy Zoo
Blog: Galaxy Zoo: Hubble – Now in German http://blog.galaxyzoo.org/2010/11/02/galaxy-zoo-hubble-now-in-german/
Blog: Galaktyczne Zoo Hubble po polsku! http://blog.galaxyzoo.org/2010/06/07/galaktyczne-zoo-hubble-po-polsku/
one clump?Blog: Classification tree tweaks May 21, 2010 http://blog.galaxyzoo.org/2010/05/21/classification-tree-tweaks/ "participants and how clearly different clumpy galaxies are from other types, even when there is only one clump. After having seen a few clumpy galaxies, it seems that many Zooites come to recognise that there are subtle features that set them apart from other types of galaxies. This suggests that single-clump galaxies really are a clearly different type of galaxy to the ellipticals and disks that are more common nearby."
clumpy galaxiesBlog: A brief history of clumpy galaxies May 25, 2010 by Steven http://blog.galaxyzoo.org/2010/05/25/a-brief-history-of-clumpy-galaxies/ "the galaxy types seen nearby were still present, but generally become “messier” the further back in time one looks. Furthermore, there appeared to be types of distant galaxies that we do not see today. Many of these galaxies comprise knots or clumps. In particular, many galaxies were found with an appearance of several clumps arranged in a line, and were named “chain galaxies”. Galaxies with two clumps were simply named “doubles”. There were also galaxies with the appearance of one clump with a tail, appropriately named “tadpole galaxies...
"the field of distant galaxy morphology had a further renaissance with the replacement of the WFPC2 camera with the Advanced Camera for Surveys (ACS). This enabled even deeper, clearer images to be obtained more quickly. Studies of these images (e.g., particularly by the Elmegreens and collaborators) find that clumpy galaxies become extremely common in the early universe.
Blog: Galaxy Zoo: Hubble April 23, 2010 by The Zooniverse http://blog.galaxyzoo.org/2010/04/23/galaxy-zoo-hubble/ "The Galaxy Zoo project has evolved once again – now we are classifying galaxies from the incredible Hubble Space Telescope!
Blog: How to handle Hubble images April 12, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/04/12/how-to-handle-hubble-images/ How cosmic rays are cleaned up in Hubble images.
Talk: New GOODS GZ images, a science question http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001c5t?page=1&comment_id=5515b23a40ead552a20001f3
Forum: Tues Jan 11 2011 Finding more information about a [Hubble] galaxy by Budgieye http://www.galaxyzooforum.org/index.php?topic=278750.0 try to look up more information in AEGIS, The Groth Strip, Keck, COSMOS, GOODS-N, ACS Tiles, GEMS and GOODS-S, SDSS , stripe82,
An example of an artificially-redshifted galaxy from Galaxy Zoo.Blog: A Galaxy Zoo update for 2014 January 8, 2014 by Kyle Willett http://blog.galaxyzoo.org/2014/01/08/a-galaxy-zoo-update-for-2014/ FERENGI (artificially redshifted images of galaxies), is critically important for the data from GZ: Hubble and the CANDELS project; we need this to properly calibrate the classifications for effects like changing resolution and surface brightness as a function of distance.
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5.5 Galaxy Zoo 4, 5 etc Infrared images and and BBC Stargazing Live https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
Blog: Merger Zoo June 15, 2012 by jfwallin http://blog.galaxyzoo.org/2012/06/15/merger-zoo/ "Merger Zoo has come to a close. Since the project started, we have had over 27,000 volunteers contributed their time supporting this project. Volunteers have reviewed over 3 million simulations. John and Anthony, The Merger Zoo Team http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=2&comment_id=53d8b86e0d43f776b0001081
Galaxy Zoo : Bar Lengths 2012? Nearby universe
Galaxy Zoo : Bar Lengths (2015) Distant universe https://www.zooniverse.org/projects/vrooje/galaxy-zoo-bar-lengths#/projects/vrooje/galaxy-zoo-bar-lengths
2013 incorporates images from three different telescopes: SDSS, HST, and UKIRT http://www.galaxyzoo.org/#/astronomers
Blog: Galaxy Zoo Continues to Evolve by Brooke Simmons Oct 13, 2014 http://blog.galaxyzoo.org/2013/10/15/galaxy-zoo-continues-to-evolve/ "Starting today, we are adding images of galaxies taken with the United Kingdom Infrared Telescope (UKIRT) for the recently-completed UKIDSS project.[...]images of galaxies taken with the United Kingdom Infrared Telescope (UKIRT) for the recently-completed UKIDSS project. UKIDSS is the largest, deepest survey of the sky at near-infrared wavelengths, and the typical seeing is close to (often better than) the typical seeing of the SDSS. Every UKIDSS galaxy that we’re showing is also in SDSS, which means that volunteers at Galaxy Zoo will be providing classifications for the same galaxies in both optical and infrared wavelengths, in a uniform way. This is incredibly valuable: each of those wavelength ranges are separately rich with information, and by combining them we can learn even more about how the stars in each galaxy have evolved and are evolving, and how the material from which new stars might form (as traced by the dust) is distributed in the galaxy.[...]The near-IR has another very useful property: the longer wavelengths can mostly pass right by interstellar dust without being absorbed or scattered. So images of galaxies in the rest-frame infrared can see through all but the thickest dust shrouds, and we can get a more complete picture about stars and dust in galaxies by looking at them in the near-IR."
Two images of the same galaxy; the infrared UKIDSS image on the left, and the optical SDSS image on the right. The strong bar in the galaxy is much more obvious in the infrared image. from K Willet
Blog: Images and artifacts in Galaxy Zoo: UKIDSS May 2014 by Kyle Willett http://blog.galaxyzoo.org/2014/05/25/images-and-artifacts-in-galaxy-zoo-ukidss/ green squares, rings and ghosts, grid patterns and speckles....."All of the UKIDSS images you see in Galaxy Zoo are what we call “artificial-color” — we use images captured by the telescope’s infrared detector, and then combine the different infrared wavelengths into a single color image. For our images, we use data from the Y-band filter (1.03 microns) for the red channel, J-band filter (1.25 microns) for green, and K-band (2.20 microns) for the blue channel....The images in Y, J, and K were taken at separate times and with different detectors and filters. So for changes in either the camera or the sky, these will often only show up in one color in the GZ images."
Blog: Finished with Galaxy Zoo: UKIDSS! by Kyle Willett May 2014 http://blog.galaxyzoo.org/2014/05/29/finished-with-galaxy-zoo-ukidss/ " thanks to the hard work of more than 80,000 volunteers, we’ve recently completed classifying the infrared images of galaxies taken from the UKIDSS survey! There were more than 70,000 images of galaxies on the site that you helped to classify; "
Blog: A Galaxy Zoo update for 2014 by Kyle Willett January 2014 http://blog.galaxyzoo.org/2014/01/08/a-galaxy-zoo-update-for-2014/ "the classifications of the artificially redshifted galaxies have been finished"
2016 April Talk: New images from DECaLS (Data Release 2) now in Galaxy Zoo! https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001w7y we're excited to have gotten another year's worth of data off the telescope covering tens of thousands of new galaxies taken with the CTIO telescope in Chile. These images all have improved resolution and deeper sensitivity than the Sloan images, so we hope that you'll be able to continue identifying fainter features like mergers and tidal debris.
"Filter Zoo"
(2015)- classifying local galaxies by colour http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5&comment_id=53d8ba500d43f77b9e000fa2
B&W images
Blog: Finished with Hubble (for now), with new images going back to our “local” Universe May 13, 2015
by Kyle Willett http://blog.galaxyzoo.org/2015/05/13/finished-with-hubble-for-now-with-new-images-going-back-to-our-local-universe/ "We are interested in measuring how a galaxy’s classification differs when it’s observed in each of the filters individually"Talk: Why are we asked to classify black and white images when colour ones exist? http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ0001g7z "The colour images (from SDSS) have previously been classified by the community, but with these monochrome images we are doing something special! The Scientists' are now looking at how our classifications differ when we only view a galaxy in a single band / filter. Certain features are not discernible in certain filters, now they just need to work out what. They need our help to do that 😃"
DECaLS Zoo
Blog:New images for Galaxy Zoo! Part 1 – DECaLS September 21, 2015 by Kyle Willett The Dark Energy Camera Legacy Survey (DECaLS) The aim of DECaLS is to use larger telescopes to get deeper images with significantly better data quality than SDSS, although over a somewhat smaller area. The science goals include studies of how both baryons (stars, gas, dust) and dark matter are distributed in galaxies, and particularly in measuring how those ratios change as a galaxy evolves. By adding morphology from Galaxy Zoo, our joint science teams will explore topics including disk structure in lower mass galaxies, better constraints on the rate at which galaxies merge, and gather more data on how the morphology relates to galaxy color and environment. DECaLS observations use the Blanco telescope, which is located at CTIO in northern Chile at an altitude of 2200m (7200 ft)...http://blog.galaxyzoo.org/2015/09/21/new-images-for-galaxy-zoo-part-1-decals/
Talk: [guide stars and telescopes at mountain top at Cerro Tolodo, Chile] https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001y94?page=5&comment_id=572917c3f96efa009a001acf
Example 2. Faint tidal debris is visible around the main galaxy in a shell-like shape (see arrows). Image courtesy DECaLS/Galaxy Zoo
Blog: Searching for “tidal debris” in DECaLS images by Sugata Kaviraj, Nov 5 2015 http://blog.galaxyzoo.org/2015/11/05/searching-for-tidal-debris-in-decals-images/ When a galaxy is subjected to tidal forces, it pulls the galaxy apart, causing irregularities in shape ...Tidal debris features, however, are longer-lived signals of a merger sometime in a galaxy’s past.
To get the time that an image was taken, click on "Exposures" in the DECaLS browser
Talk: Dust lane visibility in DECaLS http://talk.galaxyzoo.org/?_ga=1.197710185.711441289.1371287491#/boards/BGZ0000006/discussions/DGZ0001uk1?page=1&comment_id=56c8d246a0761e633f000791 I think that might be a general feature - the DECaLS images are in the g,r, and z bands, while SDSS were in g,r, and i. That means the lowest-wavelength band in DECaLS is a little bit redder, which means it's less susceptible to absorption by dust - so you'd expect dust lanes to be slightly less prominent in these images than the old Galaxy Zoo 1 and 2 images.
Illustris - a simulation Zoo
(ran concurrently with DECaLS )
New images for Galaxy Zoo! Part 2 – Illustris September 21, 2015 by Kyle Willett http://blog.galaxyzoo.org/2015/09/21/new-images-for-galaxy-zoo-part-2-illustris/ Illustris is a state-of-the-art simulation of the Universe, led by a large team of researchers in the US, UK, and Germany. Such simulations start with what we believe conditions in the very early Universe were like (which we infer from the cosmic microwave background), and can include both dark matter and baryons (particles like protons and neutrons that eventually form the stars, dust and gas in galaxies). The simulation then tracks what happens to the matter and energy over billions of years as the Universe expands, evolving according to the laws of physics that are programmed into the simulation.
Talk: Illustris Sept 2015 (classifying simulated galaxies.) posted March 2017 when Illustris started again. https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0002eys summary of Blogs
Blog: Classifying Galaxies from Another Universe! the Illustris project, which produced valuable insight into both the models and our real Universe at the present day January 29, 2018
by hughfromthezoo https://blog.galaxyzoo.org/2018/01/29/classifying-galaxies-from-another-universe/
Galaxy Zoo: Morphological classification of galaxy images from the Illustris simulation https://arxiv.org/abs/1801.08541
EAGLE
FERENGI
New Dim Red Objects Dec 10 2016 https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ00027bx Artifiically red-shifted images from FERENGI, some will look very distant, so are small and blurry.
Blog: Ferengi-2 Images Launched! December 12, 2016 by melsimba23 https://blog.galaxyzoo.org/2016/12/12/ferengi-2-images-launched/ Some of you may remember classifying the first batch of FERENGI images back in 2013. For new volunteers, or experienced volunteers who need a refresher, FERENGI is a code that takes an image of a nearby galaxy and produces a new, simulated image of what that galaxy would look like if it was actually much farther away.
2016 Dec more FERENGI images
GAMA/KiDS
Blog: https://blog.galaxyzoo.org/2017/01/31/new-images-for-galaxy-zoo-from-gama-kids/
Talk: New images for Galaxy Zoo from GAMA-KiDS! Jan 30,2017 https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0002c6p " the improvement in the resolution and depth of KiDS images over SDSS imaging is remarkable. With this new GAMA-KiDS data set we hope to be able to study the very faintest structures within galaxies, as well as more accurately classify features which may have been missed before. Take a look at the image below to see how much clearer the new images are!"
Other related Zoos -
SpaceWarps (looking for gravitational lenses) active 2012-2014, possibly again in late 2015 see 3.9 Gravitational lenses and SpaceWarps http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3&comment_id=53d8b966db90c7620200110c
Blogs http://daily.zooniverse.org/?s=SpaceWarps
Euclid - Challenge the Machines "The goal of this project is to test if humans are still better at identifying gravitational lenses than the machine learning algorithms.", for the new Euclid survey
Galaxy Zoo Radio
: In search of erupting black holes http://radio.galaxyzoo.org/ This search is now archived. To get into talk, use this link
Radio Galaxy Zoo Talk https://radiotalk.galaxyzoo.org/?_ga=2.110355587.788317030.1578982202-1541936612.1578982202
Radio Zoo (looking for relativistic jets coming from black holes) active 2014 - see 6.6 radio data and Radio Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6&comment_id=53d8bb14db90c7673f001035
Galaxy Nurseries https://www.zooniverse.org/projects/hughdickinson/galaxy-nurseries/classify?t=1&cn=ZmxleGlibGVfcmVjcw%3D%3D&iid=fa2d2fffe1f440949cec93a343fbc406&uid=114131259&nid=244+276893704 " learn how to separate real emission lines originating in baby galaxies from "false" lines which are contamination"
"Public input for ZOOGEMS" Hubble imaging https://www.zooniverse.org/projects/ngc3314/zoogems
Zoogems Public input for ZOOGEMS Hubble imaging
https://www.zooniverse.org/projects/ngc3314/zoogems
several hundred amazing objects that Hubble should look at
website: ZOOGEMS: Public input for ZOOGEMS Hubble imaging
https://www.zooniverse.org/projects/ngc3314/zoogems
website: Radio Galaxy ZooGems
ZOOGEMS Talk: HST observing program 15445 : Gems of the Galaxy Zoos ( PI: Dr. William C. Keel, University of Alabama ) https://www.zooniverse.org/projects/ngc3314/zoogems/talk/1396/562844 Target ListZOOGEMS Talk HST observing program 15446 : Establishing HST's Low Redshift Archive of Interacting Systems ( PI: Dr. Julianne Dalcanton )
https://blog.galaxyzoo.org/2018/02/02/gems-of-the-galaxy-zoos-help-pick-hubble-observations/?_ga=2.91544857.2094062646.1559580884-1109621914.1546359727
Galaxy Builder (2018)
https://www.zooniverse.org/projects/tingard/galaxy-builder
https://blog.galaxyzoo.org/2018/06/18/galaxy-builder-results/?_ga=2.157178684.683235694.1562134052-1109621914.1546359727
Galaxy Zoo: 3D
Piece together the components of galaxies to help us understand how they assembled, which are being observed by the MaNGA survey.
2016-
https://www.zooniverse.org/projects/klmasters/galaxy-zoo-3dPosted
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Budgieye
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5.6 Galaxy Zoo 2015 and other astronomy but non-galaxy zoo projects https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
http://daily.zooniverse.org/2015/09/11/a-galaxy-zoo-timeline/
information on bars see 1.7 Barred Spiral http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7990d43f77b9e000f75
Planet HuntersZooniverse website: Planet Hunters http://www.planethunters.org/ There are many dedicated planet hunters analysing the Kepler data, looking for planets.dip in star brightness indicate planet
Disk DetectivesZooniverse website Disk Detectives: http://www.diskdetective.org/ http://blog.diskdetective.org/ search for the homes of planets: stars surrounded by disks where planets form and often dwell. the data from the WISE mission that we’re examining at Disk Detective covers the whole sky.
Zooniverse website: SETILive http://www.setilive.org/? SETILive is taking the Search for Extraterrestrial Intelligence (SETI) directly to you! We present radio frequency signals LIVE from the SETI Institute's Allen Telescope Array (ATA) while it's pointed at stars that, based on Kepler exoplanet discoveries, have the best chances of being home to an alien civilization.utm_campaign=Homepage+Catalogue&utm_medium=Web&utm_source=Zooniverse+Home
Website: The Milky Way Website http://www.milkywayproject.org/ We need your help looking through tens of thousands of images from the Spitzer Space Telescope. By telling us what you see in this infrared data, we can better understand how stars form. not currently active http://blog.milkywayproject.org/
see 4.2 Milky Way Galaxy and Andromeda Galaxy and nearby http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4&comment_id=53d8b9890d43f776b0001093
Milky Way Project Talk https://www.zooniverse.org/projects/povich/milky-way-project/talkZooniverse website: Ice Hunters: Find targets for the New Horizons probe https://www.zooniverse.org/project/icehunters?lang=en "Thanks to your hard work, we've sorted through all the available data and this project is now retired. " see 8.3 asteroids, ice worlds, TransNeptunian Objects http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8&comment_id=53d8bc1e0d43f776b00010bb
website: Asteroid Zoo: Hunt for Resource-Rich Asteroids! http://www.asteroidzoo.org/ http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8&comment_id=53d8bc1e0d43f776b00010bb
Solar Stormwatch http://www.solarstormwatch.com/?utm_campaign=Homepage+Catalogue&utm_medium=Web&utm_source=Zooniverse+Home "Solar storms can go in all directions, but some are on a collision course with Earth. Here they’re a health hazard for astronauts and can damage satellites. On the plus side, they also spark the beautiful atmospheric reactions better known as the northern and southern lights, or aurora." See 8.5 Sun Moon Planets http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8&comment_id=53d8bc3c0d43f776b00010bd
Moon Zoo http://www.moonzoo.org/?utm_source=Zooniverse Home&utm_medium=Web&utm_campaign=Homepage Catalogue map the Moon See 8.5 Sun Moon Planets http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8&comment_id=53d8bc3c0d43f776b00010bd
Planet Four Mars Zoo http://www.planetfour.org/?utm_source=Zooniverse Home&utm_medium=Web&utm_campaign=Homepage Catalogue map Mars " The images on this site come from the HiRISE (High Resolution Imaging Science Experiment) camera on board the Mars Reconnaissance Orbiter. HiRISE can image Mars with resolutions of 0.3 m/pixel (about 1 foot), resolving objects below a meter across.
Planet Nine https://www.zooniverse.org/projects/skymap/planet-9 run through BBC Stargazing Live 2017.
Backyard Words: Planet Nine https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9 Help scan the realm beyond Neptune for brown dwarfs and planet nine.
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Budgieye
moderator
5.7 Twitter and Facebook https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
Twitter https://twitter.com/galaxyzoo
Facebook https://www.facebook.com/thegalaxyzoo
http://blog.zooniverse.org/2013/10/28/the-elise-andrew-effect-what-a-post-on-ifls-does-to-your-numbers/ "This number shot up to almost 600 immediately following the post. In the space of 5 minutes the number of visitors on the site went from 13 to 1,300! "
Blog: Twittering the day away February 11, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/02/11/twittering-the-day-away/
Forum: Thurs April 19 2012 Roses are red, but can be blue... http://www.galaxyzooforum.org/index.php?topic=280077.msg601111#msg601111 Valentine Day poem about blueshift Twitter https://twitter.com/penguingalaxy/status/192996187337523200 retweeted by Nature and 60 retweets
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Budgieye
moderator
5.8 Talk, Blog and the old Forum https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
Talk Galaxy Zoo http://talk.galaxyzoo.org/ started in 2012Galaxy Zoo A Zooniverse Project Blog http://blog.galaxyzoo.org/ written by the scientists
Zooniverse The Zooniverse Blog http://blog.zooniverse.org/ all projects, including Galaxy Zoo
Talk
Where are all my favourite galaxies from the older Zoos?
https://login.zooniverse.org/login?service=http%3A%2F%2Fhubble.galaxyzoo.org%2Fmy_galaxiesor log onto http://zoo2.galaxyzoo.org/ and click on my favourites
or log onto http://hubble.galaxyzoo.org/ and click on my favourites
wow #wow for an amazing galaxy
zgotw #zgotw (Zooniverse Galaxy Of The Week) If you want to suggest a galaxy as Galaxy Of The Week
Public Collection: Galaxy of the Week CGZL00003t - moderated by klmasters MODERATOR, SCIENTIST collects all galaxies tagged as #zgotw http://talk.galaxyzoo.org/#AMAZING GALAXY OF THE WEEK/collections/CGZL00003t
Daily Zooniverse: Amazing Galaxy of the Week
http://daily.zooniverse.org/tag/amazing-galaxy-of-the-week/http://blog.zooniverse.org/2015/01/14/using-tag-groups-to-collect-images-on-talk/
Talk Discussion: Want Help? Read this! (for Newbies) http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh
Talk discussion: #1 How do I : Find out more information about the galaxy I have classified? http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0000lv2
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looking up scientific information on your galaxy, and other galaxies.
Examine,
SkyServer,
Finding Chart Zoom in and zoom out, bigger pictures,
looking up info in NED (NASA Extragalactic Database, find the name of
your galaxyLook at other galaxies, Navigate
Talk Discussion #2 How do I: A Talk Tutorial http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0000utn
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How to create / edit discussions (known as Threads on the old Forum)
Add comments / use the recents tab
Create / edit and add items to collections
Send PM’s and edit your Zooniverse profile
Follow threads and comments
Use the search functionality
Find your way around your Talk profile.
Talk discussion: #3 How do I: All your FAQ's with regards to Talk http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0000x8e
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Posting on Talk Where can I change my avatar?
How do I post a picture?
How do I post a hyperlink?
Where can I find my favourites that I have classified?
Talk Discussion: Formatting in Posts - HTML, Tags, Smileys, Preview etc. http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ0000028
Smileys
:-) :) :o) :] :c) :> =] 8) =) :} :^) :-D :D 8D xD XD =D :[ :-( :( :< :[ :{ :'( :O :-O :* ;-) ;) ;] ;D :-P :P :-p :p =p :-Þ :Þ :-b :b :\ :-/ :/ =/ =\ :S :| :-X :X :-# :# >;) <3😃 😃 😮) :] :c) :> =] 8) =) :} :^) 😄 😄 8D xD XD =D :[ 😦 😦 :< :[ :{ 😢 😮 😮 😗 😉 😉 ;] ;D 😛 😛 :-p :p =p :-Þ :Þ :-b :b :\ 😕 😕 =/ =\ :S 😐 :-X :X :-# :# >;) ❤️
line control
CHANGING SIZE OF IMAGE Brooke has this suggestion, but Arfon says that it isn't guaranteed to work.
<IMG
SRC="http://www.galaxyzoo.org.s3.amazonaws.com/subjects/standard/1237679034548551758.jpg"
WIDTH="250"
http://talk.galaxyzoo.org/#/subjects/AGZ00056gl
I think the maximum width for Talk (at Oct 2014 ) is 800 for our page, but 750 seems to be right for me.
SDSS image targeted to show image same as the Hubble image
You can "steer" the image in SDSS. Here is an example. Substitute different ra, dec, scale, size. Remove the space in http to make it work, as I had to disable it so it wouldn't make an image.
Talk discussion: Hello Galaxy Zoo! by by DZM ZOONIVERSE-TEAM http://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ000107t "My name is Darren--DZM here on Talk--and I've just joined the Zooniverse team. I'm working on a few projects, first and foremost a makeover of this Talk system to incorporate some of the awesome feedback that you and other Zooites have been offering. I’ll also be around these boards as often as possible, looking for any other ways in which I can help out, so I’m always interested in hearing from you!"
Blog: Introducing Darren McRoy – Zooniverse Community Builder! October 16, 2014 by chrislintott http://blog.zooniverse.org/2014/10/16/introducing-darren-mcroy-zooniverse-community-builder/ "The position was created because of the rapid expansion of the project, and the plans we have for the next year or two, which will mean we may be able to create hundreds or thousands of new projects...One of his first projects will be gathering and compiling the feedback that will inform the upcoming rebuild of the Talk discussion system. He will be a regular presence on the forums, responding to users’ comments and concerns and seeking opportunities to spur additional conversation. He will also be contributing some written content for Zooniverse projects, blogs, websites, etc. when needed, and giving feedback to the development team. "
Blog: Lost in Space … and more (An Italian in the zoo) March 9, 2009 by Half65 http://blog.galaxyzoo.org/2009/03/09/lost-in-space-and-more-an-italian-in-the-zoo/ "Don’t be afraid if you don’t know English very well, if you have no degree, if you think that you can’t be of use to the project, that you can’t do the right thing, that you can’t do that. Stop thinking and go to the project and discover that even with a single classification you could be part of history." overlap.. overlap..overlap
Galaxy Zoo Blog
written by scientists, information on science of galaxies, and what is happening in Galaxy Zoo. http://blog.galaxyzoo.org/
also, Zooniverse The Zooniverse Blog http://blog.zooniverse.org/ all projects, including Galaxy Zoo
GALAXY ZOO FORUM
2007- 2014 started as a courtesy to Zooites, who had questions about specific objects and about science. Discoveries made by the Forum included Hanny's Voorwerp and "Peas" Oiii galaxies. Locked due to outdated software, but still a source of information. Many of the objects have the old ObjID numbers, the 58......... series http://www.galaxyzooforum.org/
Blog: Old GZ Forum – Data Update August 1, 2008 by Philip Murray http://blog.galaxyzoo.org/2008/08/01/old-gz-forum-data-update/ trying to retrieve some of the old Galaxy Zoo Forum data that was lost at the beginning of June. A massive outage at ... caused damage to the web server HDD and has resulted in us trying to restore the missing forum backup content using Data Recovery Services in California. Unforunately the chances of restoring this data would now appear to be remote."
Blog: Thanks to the Forum – and Farewell by Chris Lintott July 2014 http://blog.galaxyzoo.org/2014/07/09/thanks-to-the-forum-and-farewell/ "created to deal with the fact that we couldn’t possibly deal with the volume of mail that we were getting, the Forum quickly established itself as a very special place. It generated science – the Voorwerp and its diminutive colleagues, the Voorwerpjes, the Peas and much more came from discussions amongst its boards, as well as such random fun things as the letters that power My Galaxies.,,It was also a very civilized place – entirely due to the standards set by Alice and the team of moderators that followed, especially Graham and Hanny who have served most recently. ..Closing the forum will allow us to abandon the archaic software that runs the forum itself, and free the moderators from the increasingly onerous task of clearing the forum of spam. It will be preserved intact as a valuable resource, and a record of discussion during the first seven years of Galaxy Zoo’s life...[Thanks to a grant from the Sloan Foundation ] we’ re going to be rebuilding Talk over the next few months. If you’d like to help shape the future of discussion and community in the Zooniverse, then there’s a form for feedback available"
Probably not much more than 50,000 objects were posted on the Forum. I had to estimate that once - I looked at every image post, so that was the "parent" sample for things like finding backlit galaxies. The other 90% of SDSS galaxies were the dim fuzzy blobs that weren't very popular. from Scientist Dr Keel
Forum: Alice and the Ellipticals, Galaxy Zoo to the Rescue! (Wed 26 Jun '13) by JeanTate http://www.galaxyzooforum.org/index.php?topic=280974.0 also in Talk http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00002kk Using ellipticals to estimate the Hubble constant and the size of the Universe, also compare a post in Forum and Talk
Talk: SDSS dr6 and dr7 images don't come up in the old forum by c_cld http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001258?page=1&comment_id=56c0afc85cabfc777900275a
links to DR6 or DR7 "explore" were truncated some time ago (I didn't
know why it's so and not fixed )Anyway, you have to add to the result link
http//cas.sdss.org/astro/en/tools/explore/obj.asp truncated the last
part ?id=587732772663132926, or ?ra=...&dec=.... 😃Or with the "chart tool"
Nemesis rising
A spinoff from Galaxy Zoo forum http://nemesisrising.freeforums.org/portal.php
Posted
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Budgieye
moderator
5.9 Upcoming Galaxy Zoo type projects LLST https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
**The Large Synoptic Survey Telescope LSST ** http://www.lsst.org/
Currently under construction in Chile,The Large Synoptic Survey Telescope https://www.lsst.org/lsst
It will provide huge amounts of information daily. Computers can't always analyse correctly, and humans will need to help.
These parts of the LSST system will produce
the deepest, widest, image of the Universe:• 27-ft (8.4-m) mirror, the width of a singles tennis court
• 3200 megapixel camera
• Each image the size of 40 full moons
• 37 billion stars and galaxies
• 10 year survey of the sky
• 10 million alerts, 1000 pairs of exposures,
15 Terabytes of data .. every night!The Large Synoptic Survey Telescope
The LSST is a new kind of telescope. Currently under construction in Chile, the LSST is designed to conduct a ten-year survey of the dynamic universe. LSST can map the entire visible sky in just a few nights; each panoramic snapshot with the 3200-megapixel camera covers an area 40 times the size of the full moon.
Images will be immediately analyzed to identify objects that have change or moved: from exploding supernovae on the other side of the Universe to asteroids that might impact the Earth.
In the ten-year survey lifetime, LSST will map tens of billions of stars and galaxies. With this map, scientists will explore the structure of the Milky Way, determine the properties of dark energy and dark matter, and make discoveries that we have not yet imagined. Scientists in the US and Chile, LSST’s International Affiliates, and the general public are invited to share in this voyage of discovery. What will you find?Talk: The future of Galaxy Zoo in LSST, the Large Synoptic Survey Telescope https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0001zfr?page=1&comment_id=5857e10f95ad364bc30009bc
LLST website: https://docushare.lsstcorp.org/docushare/dsweb/Get/Document-14552/STEM_2016.pdf An innovative Citizen Science program will involve people of all ages in LSST discoveries
through the visual inspection of alerts. Zooniverse has over 750,000 registered
users participating in online projects today1
."Telescope data are being packaged for a wide audience, too. The LSST Education and Public Outreach (EPO) program is working to involve classrooms, citizen scientists and the general public as deeply in big data astronomy as they want (or dare) to go. Primary EPO goals are to help educators integrate real LSST data into classrooms and introductory astronomy courses, and to help non-specialists access LSST data in ways similar to those of professional astronomers. Working through platforms like Zooniverse, almost anyone will be able to conduct serious research projects. “Citizen volunteers should be thought of as members of the science collaboration,” says Amanda Bauer, Head of LSST EPO."
http://www.astronomy.com/news/2017/12/the-lsst-and-big-data-science, posted by Ghost_Sheep_SWR
Zooniverse Talk: Are there more serendipidous discoveries waiting to be followed up ? https://www.zooniverse.org/talk/688/145468
Blog: Announcing Galaxy Zoo’s machine-learning competition (with prize money!) by Kyle Willett http://blog.galaxyzoo.org/2013/12/23/announcing-galaxy-zoos-machine-learning-competition-with-prize-money/ " upcoming telescopes like the SKA, LSST, and just-launched Gaia will have billions of new images and detected objects. This will simply be too large for citizen scientists to handle the full scope of data ...The goal for competitors is to come up with an algorithm that will predict what those classifications should be based only on the picture."
Blog: Galaxy Zoo and Zooniverse review article posted today on ArXiv May 2, 2011 by Lucy http://blog.galaxyzoo.org/2011/05/02/galaxy-zoo-and-zooniverse-review-article-posted-today-on-arxiv/ "a related endeavor, called Data Mining, is applying these algorithms to large quantities of data to extract patterns or knowledge. "" By the time we reach the end of this decade when the Large Synoptic Survey Telescope (LSST) is online, the data will be coming in at tens of Terabytes a night. "
Euclid Space Telescope (launch date 2020?) http://www.euclid-ec.org/ will look for gravitational lenses which help us understand dark matter and dark energy, accelerating expansion of the Universe,the past, present and future evolution of Universe, 1,200 scientists from 14 countries. Will produce a huge number of images of the whole sky with equal resolution of the Hubble Space Telescope. Will look at a billion galaxies.
Euclid - Challenge the Machines
https://www.zooniverse.org/projects/hughdickinson/euclid-challenge-the-machines/talk/1609
The goal of this project is to test if humans are still better at identifying gravitational lenses than the machine learning algorithms of Euclid. The Euclid telescope, due for launch in 2021, will perform an imaging and slitless spectroscopy survey over half the sky, to map baryon wiggles and weak lensing. During the survey Euclid is expected to resolve 100,000 strong gravitational lens systems.Posted
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Budgieye
moderator
5.10 Zooniverse https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5
The Zooniverse is home to the Internet's largest, most popular and most successful citizen science projects
website: List of current projects https://www.zooniverse.org/projects, galaxy related projects include
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Galaxy Zoo 2: how do galaxies form?
Radio Galaxy Zoo: match growing black holes to their jets
SpaceWarps (looking for gravitational lenses) is inactive at the moment.
Merger Zoo - run computer simulations of merging galaxies, retired,
no longer available.
website: DAILY ZOONIVERSE Something awesome from the Zooniverse every day http://daily.zooniverse.org/
website: Galaxy news in the Daily Zooniverse http://daily.zooniverse.org/?s=Galaxy+Zoo+2
website: Daily Zooniverse: Meet the team http://daily.zooniverse.org/tag/meet-the-team/
website: Zooniverse Live REAL-TIME CLASSIFICATIONS http://live.zooniverse.org/ see a flash on a world map each time someone does a classification
website: Zooniverse website: http://tools.zooniverse.org/#/dashboards/galaxy_zoo Zoo Tools (Dashboard ) is a place where volunteers observe, collect, and analyze data from select Zooniverse projects. Currently, you can explore data from Galaxy Zoo, Galaxy Zoo Quench, Space Warps,...
website: Zooniverse team https://www.zooniverse.org/team
http://blog.zooniverse.org/2012/12/24/740000-people-part-two/ Thanks to all the volunteers
Zooniverse website: Listen to Zooniverse http://eatyourgreens.github.io/listen-to-zooniverse/ Music plays when a classification is done.
How many classifications have I done?
The counters on your profile on the classification page are not updating. But you can still see how many classifications you have done. Go to the Zooniverse home page https://www.zooniverse.org/projects/current and hover over your username (top right) and click on Projects. Now you can see how many classifications you have done for each of the projects you have worked on.
Zooniverse Letters http://letters.zooniverse.org/ In-house publication of science results,
Blog: Introducing Darren McRoy – Zooniverse Community Builder! October 16, 2014 by chrislintott http://blog.zooniverse.org/2014/10/16/introducing-darren-mcroy-zooniverse-community-builder/ "The position was created because of the rapid expansion of the project, and the plans we have for the next year or two, which will mean we may be able to create hundreds or thousands of new projects"
Blog: A Galaxy Zoo science team dinner June 2013 http://blog.galaxyzoo.org/2013/06/07/a-galaxy-zoo-science-team-dinner/ "Galaxy Zoo hosted a Specialist Discussion at the Royal Astronomical Society in London, on the topic of Morphology in the Era of Large Surveys. "
website: Zooniverse live, real-time classifications, world map seeing classifications as they happen http://live.zooniverse.org/
Blog: ZooCon Oxford [2013] is Tomorrow! by Brooke Simmons July 21, 2013 http://blog.galaxyzoo.org/2013/06/21/zoocon-oxford-is-tomorrow/
Blog series: http://blog.galaxyzoo.org/category/shes-an-astronomer-3/
Blog: She's an Astronomer: Did we really need that series? by karenlmasters January 2011 http://blog.galaxyzoo.org/2011/01/07/shes-an-astronomer-did-we-really-need-that-series/
Blog: AAAS Symposium in Feb. 2015: Cutting-Edge Research with 1 Million Citizen Scientists by raminskibba July 2014 http://blog.galaxyzoo.org/2014/07/18/aaas-symposium-in-feb-2015-cutting-edge-research-with-1-million-citizen-scientists/ "at the annual meeting of the American Association for the Advancement of Science (AAAS) in San Jose, CA in February 2015. (The AAAS is one of the world’s largest scientific societies and is the publisher of the Science journal.) Our session will be titled “Citizen Science from the Zooniverse: Cutting-Edge Research with 1 Million Scientists."
Blog and video: Zooniverse Live Chat July 10, 2013 by Brooke Simmons http://blog.galaxyzoo.org/2013/07/10/zooniverse-live-chat/ "A small team of scientists and developers from across the Zooniverse are gathered at Adler Planetarium in Chicago this week to pitch and work on ideas for advanced tools for some of your favorite Zooniverse projects."
Blog: Welcome to the Zooniverse December 13, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/12/13/welcome-to-the-zooniverse/ "The changes are part of the launch of the Zooniverse the new home for Galaxy Zoo and the other projects we’re developing. "
Blog: Want to work with the Galaxy Zoo team? http://blog.galaxyzoo.org/2009/11/27/want-to-work-with-the-galaxy-zoo-team/ Oxford and Adler Planetarium in Chicago.
Blog: And one Login to Rule them All March 2009 http://blog.galaxyzoo.org/2009/03/24/and-one-login-to-rule-them-all/ e Galaxy Zoo classifications site (GalaxyZoo.org) and the Galaxy Zoo Forums (GalaxyZooForum.org) are going to adopt a shared login
Blog: An introduction [to Arfon Smith] January 2009 http://blog.galaxyzoo.org/2009/01/08/an-introduction/ "role of technical lead ..PhD in Astrochemistry from The University of Nottingham where I studied the role that dust has to play in a variety of astrophysical environments."
HST Newscenter: News Release Number: STScI-2016-44
October 21, 2016STScI Appoints Head of Newly Created Data Science Mission Office Dr. Arfon Smith has been selected to lead the newly created Data Science Mission Office at the Space Telescope Science Institute (STScI) in Baltimore, Maryland. (...) https://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ00026ub?page=1&comment_id=583e6350aeb4423d85000316
Twitter https://twitter.com/the_zooniverse
Google+ https://plus.google.com/+ZooniverseOrgReal/posts
Zooniverse website: Zooniverse List of Publications https://www.zooniverse.org/publications
Forum: Thursday 7th July 2011: got an idea? by Alice http://www.galaxyzooforum.org/index.php?topic=279288.0 How the Zooniverse is expanding, also the galactic alphabet
http://blog.zooniverse.org/2012/12/23/740000-people/
https://zooniverseblog.files.wordpress.com/2012/12/user-infographic.pdf
http://blog.zooniverse.org/2014/02/14/one-million-volunteers/
HOW TO COMMUNICATE WITH THE ZOONIVERSE
https://blog.zooniverse.org/2019/08/06/how-to-communicate-with-the-zooniverse/
For FAQs (e.g., how to unsubscribe from emails, reset your password, etc.):
Visit https://zooniverse.freshdesk.com/support/solutions for answers to common questions.If you notice a bug/problem:
Email contact@zooniverse.org.In your email, include the web browser and operating system you’re using (visit whatismybrowser.com if you’re unsure).Please understand that the Zooniverse team is small and busy. We read all emails and take your feedback very seriously, but unfortunately we cannot directly reply to all of the emails we receive.If you want to loop a Zooniverse team member into a Talk discussion when there is an issue that cannot be resolved by the project team:
Tag the Zooniverse team in your Talk post using “@support”.If you have a general question and/or comment that’s not specific to an individual Zooniverse project:
Post within the Zooniverse Global ‘Talk’ discussion forum (which has general threads like Troubleshooting, Mobile App, and Education).If you notice a Security issue:
Email security@zooniverse.org, and follow the instructions on the Zooniverse security page.If you’re using the Project Builder Platform (zooniverse.org/lab) to build a new Zooniverse project and have a question:
Post in the Project Building Zooniverse Global‘ Talk’ discussion forum.What are Moderators For? A Guide for Project Teams
https://docs.google.com/document/d/1L8LwYy_uUxwX1NqE5sXi0fnrjZKG1DZu1fWLath9BOE/editPosted
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Budgieye
moderator
Index for Galaxy Zoo Talk Other data sources
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=66.1 SDSS data (Sloane Digital Sky Survey) dr7 dr10 6.2 SDSS stripe 82, 84, 86 6.3 HST (Hubble Space Telescope) data 6.4 AEGIS, Groth strip 6.5 Infrared data CFHT (Canada France Hawaii Telecope) 6.6 radio and Radio Galaxy Zoo 6.7 DECaLS and PanSTARRS and GAMA/KiDS 6.8 UV and X-ray telescope 6.9 other telescope images 6.10 Google Sky6.1 SDSS data (Sloane Digital Sky Survey) dr7 to dr10 https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
SDSS The Alfred P. Sloan Foundation is a philanthropic, not-for-profit grantmaking institution based in New York City.
Established in 1934 by Alfred Pritchard Sloan Jr., then-President and Chief Executive Officer of the General Motors Corporation, the Foundation makes grants in support of original research and education in science, technology, engineering, mathematics and economic performance....By funding basic research, the Alfred P. Sloan Foundation has created a digital survey of the sky, . http://www.sloan.org/SDSS video: Charting the Heavens http://www.sdss.org/education/ A 4 minute tour of the universe
SDSS APO Galactic Evolution Experiment (APOGEE) http://www.sdss.org/surveys/apogee/ "IR map of the whole Galaxy showing the plane and bulge of the Galaxy full of stars and dust. APOGEE uses new IR instrumentation to study stars within the disk and is less affected by the extinction from interstellar dust" APOGEE-2 will extend the reach of the SDSS by using both the Sloan Foundation Telescope at Apache Point Observatory and the Irénée du Pont Telescope at Las Campanas Observatory in Chile. A telescope in each hemisphere means that APOGEE-2 will be able to see the entire Milky Way. http://www.sdss.org/surveys/apogee-2/
SDSS The Baryon Oscillation Spectroscopic Survey (BOSS) http://www.sdss.org/surveys/boss/ "map the spatial distribution of luminous red galaxies (LRGs) and quasars to detect the characteristic scale imprinted by baryon acoustic oscillations in the early universe" The Extended Baryon Oscillation Spectroscopic Survey (eBOSS) http://www.sdss.org/surveys/eboss/ "will precisely measure the expansion history of the Universe throughout eighty percent of cosmic history, back to when the Universe was less than three billion years old, and improve constraints on the nature of dark energy."
SDSS Mapping Nearby Galaxies at APO (MaNGA) http://www.sdss.org/surveys/manga/ "Unlike previous SDSS surveys which measured spectra only at the centers of target galaxies, MaNGA bundles sets of optical fibers into tightly-packed arrays, enabling spectral measurements across the face of each of ~10,000 nearby galaxies. MaNGA’s goal is to understand the “life cycle” of present day galaxies from imprinted clues of their birth and assembly, through their ongoing growth via star formation and merging, to their death from quenching at late times."
SDSS MARVELS: Characterizing Extrasolar Planets The Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS) http://www.sdss.org/surveys/marvels/ "monitored the radial velocities of 11,000 bright stars, with the precision and cadence needed to detect gas giant planets that have orbital periods ranging from several hours to two years."
SDSS SEGUE: Mapping the Outer Milky Way Sloan Extension for Galactic Understanding and Exploration (SEGUE) http://www.sdss.org/surveys/segue/ " the complex kinematic and chemical substructure of the [Milky Way] Galactic halo and disks, providing essential clues to the assembly and enrichment history of the Galaxy. In particular, the outer halo is expected to be dominated by late-time accretion events. SEGUE can help constrain existing models for the formation of the stellar halo and inform the next generation of high resolution simulations of Galaxy formation."
If an SDSS galaxy has no ObjID, or a poorly targeted one, use #noObjid
Forum: Using the query box to make arrows to point to objects Friday July 2, 2010 What is the mysterious white box? by Budgieye http://www.galaxyzooforum.org/index.php?topic=277957.msg475577#msg475577
M31 Andromeda galaxy in SDSS
no PhotoObjects near the Andromeda Galaxy, the light is too bright! I picked the nearest to the center, which is a planetary nebula in M31 http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237659888122920972
Talk: Automating the saving of SDSS images http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ00019vz?page=1&comment_id=54e90c93832cec54b20002ae with Python or Linux
Talk: Andromeda Galaxy in SDSS http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00018u3?page=1&comment_id=54d79bbe69752651db000782
Forum: Dating SDSS Images by waveney http://www.galaxyzooforum.org/index.php?topic=272749.0
Sometimes it is useful to know the date that an SDSS image was created, for example, to check whether the current image could contain a supernova which exploded in a particular year. This procedure should work for all images.
From the SkyServer Object Explorer page for the object in question, click on the “Field” link on the left under the “PhotoObj” heading. Scroll down to the “mjd_u” label and note down the value in the right-hand field. This is in MJD format (Modified Julian Date) and in scientific notation. Convert the value to standard decimal and add 2400000.5 to the value. As an example, if the original value is “5.26674166E4” it would become “52667.4166” then “2452667.9166”. Now enter this value into the “Julian Date” field on the following web site and click the button to get your date.
Links: Julian Date ConverterBlog by Kyle Willett Galaxy Zoo data in SDSS http://blog.galaxyzoo.org/2013/07/31/sdss-data-release-10-and-galaxy-zoo-2/ data for spiral, elliptical, edge-on, and merger. Galaxy Zoo data is now in SDSS and contributing to scientific research !
Blog: SDSS Data Release 10 and Galaxy Zoo 2 by Kyle Willett http://blog.galaxyzoo.org/2013/07/31/sdss-data-release-10-and-galaxy-zoo-2/ elliptical vs Spiral data in SDSS dr 8 Galaxy Zoo data in SDSS
Blog: Galaxy Zoo 2 data release August 19, 2013 by chrislintott http://blog.galaxyzoo.org/2013/08/19/galaxy-zoo-2-data-release/ " Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey..results provide data on bars, on the number of spiral arms and on much more besides"
Blog: Using Galaxy Zoo Classifications – a Casjobs Example August 1, 2013 by karenlmasters http://blog.galaxyzoo.org/2013/08/01/using-galaxy-zoo-classification-a-casjobs-example/ " you need to go to CasJobs (make sure it’s the SDSS-III CasJobs and not the one for SDSS-I and SDSS-II which is a separate page and only includes SDSS data up to Data Release 7), sign up for a (free) account, and paste these code bits into the “Query” tab."
Blog: SDSS Data Release 10 and Galaxy Zoo 2 July 31, 2013 by Kyle Willett http://blog.galaxyzoo.org/page/7/ Data Release 10 (DR10) is now available to both the general astronomy community and to the public. .. includes new data from BOSS, which has been measuring redshifts for distant galaxies in order to measure cosmological parameters and study structure formation...that data from Galaxy Zoo 2 is available"
Blog: Galaxy Zoo classifications in SDSS Database January 12, 2011 by karenlmasters http://blog.galaxyzoo.org/2011/01/12/galaxy-zoo-classifications-in-sdss-database/ " but one thing which might have passed your notice is that as part of this data release your Galaxy Zoo classifications (from the first phase of Galaxy Zoo) have been integrated into the SDSS public database (CasJobs). This will make GZ1 classifications all that more accessible for professional (and amateur?) astronomers to use in their research, "
Blog:A Grand Bold Thing : The story of the Sloan August 18, 2010 by Ann Finkbeiner http://blog.galaxyzoo.org/2010/08/18/a-grand-bold-thing-the-story-of-the-sloan/ The project’s first two incarnations were based entirely on images from the Sloan Digital Sky Survey, the star of A Grand Bold Thing, a book that was released this week....“You take good data, you let smart people work with it, and you’ll get science you never anticipated.” Some of that science is being done by the good people of the Zooniverse. Surveys open to the public have always been high altruism. I think the Sloan is still surprising."
Blog: Join us for the SDSS-III meeting! (says Jordan) July 2009 http://blog.galaxyzoo.org/2009/07/20/join-us-for-the-sdss-iii-meeting/ the members of the Sloan Digital Sky Survey collaboration will be meeting in Princeton to talk about the present and future of the survey. Bob and I will be there to talk about Galaxy Zoo, and we’d like you to be there too. live-broadcasting the meeting on our channel on UStream TV, starting on Monday, July 27th at 8:30 AM U.S. Eastern Time. (UStream is a web site that lets you broadcast video from a hand-held camcorder over the Internet.)
BBlog: Shades of opinion by Bill Keel April 2008 http://blog.galaxyzoo.org/2008/04/29/shades-of-opinion/ SDSS filters "That’s why the Voorwerp appeared as a blue blob even though it’s really green."
Blog: Interview with Chris and Jordan Jan 2008 http://blog.galaxyzoo.org/2008/01/16/interview-with-chris-and-jordan/
Blog: Galaxy Zoo and the Nobel Prize October 6, 2009 by The Zooniverse "2009 Physics prizes, just announced by the Swedish Academy. The prize was shared by Charles Kao, Willard Boyle, and Charles Smith. Kao’s work contributed greatly to making fiber optics feasible for reliable transmission of signals at high bandwidth, a prerequisite for the Internet as we know it today. And incidentally, optical fibers have multiplied the effectiveness of spectrographs for astronomical surveys, by letting us pipe light from hundreds of objects at once into a single spectrograph; this is how all the SDSS spectra examined by Zooites were obtained...Finally, I suspect the prize committee was aware of the Galaxy Zoo project. At the very end of their excellent document on the science behind the prizes, we read: ...Furthermore the evaluation of large amounts of data (e.g. created in mapping the universe) can be spread to many groups and even to volunteers from the general public.”
Blog: Flying amongst galaxies September 5, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/10/06/galaxy-zoo-and-the-nobel-prize/ http://blog.galaxyzoo.org/2009/09/05/flying-amongst-galaxies/ "As anyone who has created their own tour will tell you, Microsoft’s WorldWide Telescope is a fantastic tool for exploring the Universe. While the web based version will do for viewing your Galaxy Zoo favourites, the real power comes with downloading the new `Aphelion’ release – which depended on Galaxy Zoo users for one of its best features. Worldwide Telescope gives you the chance to fly amongst the galaxies of the Sloan Digital Sky Survey. While before each galaxy was represented by a randomly selected image, in the new version the correct type of galaxy is shown in the correct position. The team at Microsoft relied on Galaxy Zoo to tell them where to put a spiral and where an elliptical, and then matched templates to the observed size and brightness. As a result, in flying around the Sloan you’re also exploring the results of all those clicks – which should inspire you to get back to Zoo 2 for more."
Blog and video: The universe on a carpet (live from the SDSS-III meeting July 2009 http://blog.galaxyzoo.org/2009/07/29/the-universe-on-a-carpet-live-from-the-sdss-iii-meeting/ planning the next year of operations for the Sloan Digital Sky Survey III (SDSS-III).
Blog: A visit to Apache Point April 1, 2009 by Bill Keel http://blog.galaxyzoo.org/2009/04/01/a-visit-to-apache-point/ Interesting description of the Sloan telescope with pictures.
Blog: Liveblog: Jim Gunn on the Sloan Digital Sky Survey http://blog.galaxyzoo.org/2008/08/19/liveblog-jim-gunn-on-the-sloan-digital-sky-survey/ "...scientists from the Sloan Digital Sky Survey have gathered in Chicago to review accomplishments and look ahead to the future... design a project that would use digital cameras..they came up with a clever solution to get 600 spectra at once...By seeing millions of galaxies at once, all over the sky, the SDSS has helped us learn more about what galaxies are like....subject of morphology [the study of galaxy shape] ... Monoceros Stream, a long stream of stars discovered by the SDSS, which Gunn described as “still a bit of a mystery.”..new “minor planet” called 2006 SQ 372,.. there are lots of new surveys planned, including a 6-year extension to the SDSS called SDSS-III, PanSTARRS, and LSST....“it really is possible for hundreds of people at tens of institutions to work together in a ‘non-cat-herded’ manner.” He adds, “it’s been fun as well.”
http://www2.ifa.hawaii.edu/newsletters/images/28slacsdatamosaic.jpg
Website: SLACS: The Sloan Lens ACS Survery http://www2.ifa.hawaii.edu/newsletters/images/28slacsdatamosaic.jpg
Publication: Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey by Kyle W. Willett , Chris J. Lintott , Steven P. Bamford , Karen L. Masters , Brooke D. Simmons, Kevin R.V. Casteels , Edward M. Edmondson, Lucy F. Fortson, Sugata Kaviraj , William C. Keel , Thomas Melvin, Robert C. Nichol , M. Jordan Raddick , Kevin Schawinski , Robert J. Simpson , Ramin A. Skibba , Arfon M. Smith , Daniel Thomas Cosmology and Nongalactic Astrophysics http://arxiv.org/abs/1308.3496 "bars, bulges, and the shapes of edge-on disks, as well as quantifying the relative strengths of galactic bulges and spiral arms."
Publication: Galaxy Zoo Morphology and Photometric Redshifts in the Sloan Digital Sky Survey Way, M. J. http://adsabs.harvard.edu/abs/2011ApJ...734L...9W results of classifying spirals and ellipticals can help teach machines to do the same.
Forum thread: Galaxies from the Edge by Jules http://www.galaxyzooforum.org/index.php?topic=272571.0 "Galaxies near to the edges of the SDSS sky coverage do not have obvious ObjIDs"
Forum: I found the sky! http://www.galaxyzooforum.org/index.php?topic=275816.0" a blank one every now and then to calibrate the light intensity of the sky"
Forum: Saturday, 31st August, 2013: A Paler Shade of White by JeanTate http://www.galaxyzooforum.org/index.php?topic=281179.0 colours of dusty galaxies in SDSS DR7 and DR10
Forum: Wednesday, August 21st, 2013: Mystery Spiral? by fatha731 http://www.galaxyzooforum.org/index.php?topic=281107.0 There are no ObjID around brighter galaxies.
Forum: Wednesday, 29th August, 2012: Blue Satellites by Jean Tate http://www.galaxyzooforum.org/index.php?topic=280367.0 why there are so few blue satellites? a study of SDSS filters
to find the time and date an image was taken easily the SDSS help desk have told me that it is available as follows:
Go the 'Sky Server Object Explorer' for the image in question
Under 'PhotoObj' click the field link
In the table that will appear there are the following:
mjd_u 5.20762784E4
mjd_g 5.20762801E4
mjd_r 5.20762767E4
mjd_i 5.20762776E4
mjd_z 5.20762792E4These are the modified Julian Date+time that the images in each filter - note they are a little odd in being in scientific notation.
Here is a modified Julian date converter
Calendar Conversion http://pdc.ro.nu/mjd.cgi
Put the number into the Julian, read off the Gregorian, which is what we use
The other way is to download the FITS image from the FITS link in PhotoObj - then look at the FITS header either with a Text Editor or a programme like fv (FitsViewer) and you should see the date and time the image was taken.
http://www.galaxyzooforum.org/index.php?topic=437.msg39416#msg39416
Here is a modified Julian date converter http://www.csgnetwork.com/julianmodifdateconv.html
Put the number into the Julian, read off the Gregorian, which is what we use
Find fields
for dr5 http://skyserver.sdss.org/dr5/en/tools/getimg/fields.asp
Talk: SDSS dr6 and dr7 images don't come up in the old forum by c_cld http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001258?page=1&comment_id=56c0afc85cabfc777900275a
links to DR6 or DR7 "explore" were truncated some time ago (I didn't
know why it's so and not fixed )Anyway, you have to add to the result link
http//cas.sdss.org/astro/en/tools/explore/obj.asp truncated the last
part ?id=587732772663132926, or ?ra=...&dec=.... 😃Or with the "chart tool"
DR9 Science Archive Server (SAS)
You can see the u, g, r, i ,z images, but need to use FITS files.https://dr9.sdss.org/coverageCheck
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Budgieye
moderator
6.2 SDSS stripe 82, 84, 86 https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
Using multiple images from a SDSS supernova survey, recycled to create good resolution galaxy images. They usually have a speckly background.
Blog: New images in the Zoo November 5, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/11/05/new-images-in-the-zoo/ " Steven’s developed a clever method of reducing the background noise while not affecting the objects in the image, and we’ve also tweaked the colour balance to make things bluer and fit in more closely with the original SDSS imagery. The background noise gets its colour intensity reduced too, which helps with the sometimes quite intense coloured speckling of the old set."
Blog: Stripe 82 and colour images from Sloan September 3, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/09/03/stripe-82-and-colour-images-from-sloan/ "The new Stripe 82 images you see are made of an addition of approximately 50 ordinary SDSS images, which means we can see things about 2 magnitudes fainter (about 7 times less light). It’s only over a relatively small patch of the sky – 270 square degrees compared to the full survey which is nearer 8000 square degrees – but the extra depth should be useful to us in many ways even though it’s only over a smaller area.
Many users will already have noticed that the standard images supplied through the Navigator interface are in black and white – they’re just in the r band (SDSS has 5 bands named u, g, r, i and z of which g, r and i are normally mapped to blue, green and red respectively). Naturally, we wanted to supply the Zoo with colour images like those in the ordinary Sloan survey" plus links to the complex coding for presenting the data.
There are more than 40,000 new images. They have a speckly background.Blog: Stripe 82 Digging Deeper September 2, 2009
by The Zooniverse http://blog.galaxyzoo.org/2009/09/02/stripe-82-digging-deeper/ "Over the first seven years of the Sloan survey, the telescope returned again and again to this part of the sky, comparing images from each visit in an attempt to discover supernovae (exploding stars) and detect objects which change in brightness. A nice side effect, though, is that we can add the different images together. This produces the same result as having left the telescope pointing at the same place for longer; images which show fainter objects and (hopefully) more detail in familiar ones."Visualizing Stripe 82 coadded images in Google Earth http://www.galaxyzooforum.org/index.php?topic=278457.msg505530#msg505530
SDSS stripe 82 navigate
http://cas.sdss.org/stripe82/en/tools/chart/navi.aspPosted
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Budgieye
moderator
6.3 HST (Hubble Space Telescope) data https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
HubbleSite: Episode 16 Deep Universe by Frank Summers 2011 30 min video, pick the low definition for quicker download astronomy/hubbles_universe_unfiltered/episodes/16 A well-done explanation of Hubble imaging of distant galaxies. Where is Hubble pointing? Count the number of galaxies in the universe. Galaxies become clumpy as we look back in time. Redshift and why we need the the upcoming James Webb Space Telescope.
Find a Hubble image http://www.spacetelescope.org/images/search/
Blog CANDELS: The new data in Galaxy Zoo http://blog.galaxyzoo.org/2012/09/12/candels-intro/ Harry Ferguson, CANDELS Co-Principal Investigator (posted by BorisHaeussler on Harry’s behalf) "If you have been classifying galaxies in the last version of Galaxy Zoo, you have been looking at images from some of these deep surveys,and you will have seen that many of these distant galaxies have not yet acquired the familiar spiral and elliptical shapes. Instead, they are often clumpy, irregular structures"
Talk: New GOODS GZ images, a science question http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001c5t?page=1&comment_id=5515b23a40ead552a20001f3 "In what bands/filters were the two CANDELS and five GOODS data ('exposures') taken?"
Blog: Why build the Hubble Space Telescope? by Boris August 30, 2010 http://blog.galaxyzoo.org/2010/08/30/why-build-a-space-telescope/ resolution, only some wavelengths penetrate atmosphere
Forum: Redshift of Hubble galaxies, with spectra by Budgieye http://www.galaxyzooforum.org/index.php?topic=277967.0 Hubble images are in 2 colours: blue and red
4500-7078Å is represented by blue, and 7078-9500Å is represented by red
The two colours can mix together to make white.
The spectral charts are taken with a ground based telescope.
The spectra are in the range of 6500Å to 9200Å, which is shorter than the SDSS charts.website: The Story So Far http://www.galaxyzoo.org/#/story The present day Galaxy Zoo combines new imaging from Sloan, giving us our best ever view of the local Universe, with the most distant images yet from Hubble's CANDELS survey. The CANDELS survey makes use of the new Wide Field Camera 3 - installed during the final shuttle mission to Hubble - to take ultra-deep images of the Universe, so who knows what's out there to be found?
Candels http://candels.ucolick.org/data_access/Latest_Release.html The Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS; Grogin et al. 2011; Koekemoer et al. 2011) is designed to document the first third of galactic evolution from z = 8 to 1.5 via deep imaging of more than 250,000 galaxies with WFC3/IR and ACS. It will also discover and characterize Type Ia SNe beyond z > 1.5 and establish their accuracy as standard candles for cosmology.
The survey targets five premier multi-wavelength sky regions; each has multi-wavelength data from Spitzer and other facilities plus extensive spectroscopy of the brighter galaxies. The use of five widely separated fields mitigates cosmic variance and yields statistically robust and complete samples of galaxies down to 109 solar masses out to redshift z ~Blog: Preparing the pixels January 4, 2011 by The Zooniverse http://blog.galaxyzoo.org/2011/01/04/preparing-the-pixels/ " For the launch of Galaxy Zoo: Hubble, data was taken from several surveys:
GOODS: The Great Observatories Origins Deep Survey
GEMS: Galaxy Evolution from Morphology and SEDs
AEGIS: All-wavelength Extended Groth strip International Survey
We’ve also recently added in COSMOS: Cosmic Evolution Survey images – more about the nitty gritty details of those images in a future post.... For the HST images we instead use one image for red, another for blue, and then just take the average of the two for green"
Finding images AEGIS DEEP2 http://tkserver.keck.hawaii.edu/egs/dataAccess/query/egs_query_deep2.php (little box to put number into is hard to see)
Talk: Two peas in two pods. Two similar galaxies with a "pea" in SDSS at z=0.003 and in Hubble at z=1.294 http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0001d9e
Forum thread: Most Distant Spirals http://www.galaxyzooforum.org/index.php?topic=277905.0 Hubble
Blog: From data to art January 17, 2011 by Zolt Levay http://blog.galaxyzoo.org/2011/01/17/from-data-to-art/ How Hubble images are processed.
Blog: Me, HST and the history of surveys August 2, 2010 by Boris Häußler http://blog.galaxyzoo.org/2010/08/02/me-hst-and-the-history-of-surveys/ "just recently started my second postdoc with Steven Bamford, ... working on Hubble Space Telescope (HST) data, mainly on the GEMS and STAGES surveys, and have gathered particular experience in the field of galaxy profile fitting, trying to measure sizes, shapes, etc. of distant galaxies. Whereas my previous projects have mainly been working on galaxies at redshift z~0.7, my new job is trying to do similar and more advanced things on more local galaxies, mainly SDSS galaxies, "
Blog: Edwin Hubble, the man behind HST August 16, 2010 by Boris http://blog.galaxyzoo.org/2010/08/16/edwin-hubble-the-man-behind-hst/ "extragalactic systems, islands of stars (and possibly life) in the vast nothingness of space. Other distant ‘Milkyways’, just like our own. We now call them ‘galaxies’.. he noticed something interesting: The further galaxies are away from our position, the faster they move away.
NGC1512 screengrab from WikipediaBlog: Why build the Hubble Space Telescope? August 30, 2010 by Boris http://blog.galaxyzoo.org/2010/08/30/why-build-a-space-telescope/ "only optical and radio (and a bit near infrared) observatories make sense on earth, even on the highest mountains. For any other wavelength, you need a space telescope to be able to observe galaxies at all."
Hubble Space Telescope trail over Kitt PeakBlog: A Kitt Peak gallery June 29, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/06/29/a-kitt-peak-gallery/ "Just before dawn each night, we were in the right place to see the Hubble Space Telescope pass high in the south. Here is its trail emerging from behind the 2.1m dome – from one 2-meter telescope to another!"
Blog: Hubble refurbishment – the countdown continues May 11, 2009 by Bill Keel http://blog.galaxyzoo.org/2009/05/11/hubble-refurbishment-the-countdown-continues/ The Cosmic Origins Spectrograph (COS) and Wide-field Camera 3 (WFC3) are in the payload bay. Ambitious repair plans for the electronics in the Space Telescope Imaging Spectrograph (STIS) and Advanced Camera Surveys (ACS) have been developed and tested. The next year’s observations to use these instruments have been selected in a peer-review meeting managed by the Space Telescope Science Institute (and Zoo participants will remember our reaction after that!). http://blog.galaxyzoo.org/2009/05/12/we-have-liftoff/#more-586
http://www2.ifa.hawaii.edu/newsletters/images/28slacsdatamosaic.jpg
Groth Strip in SDSS and Google Sky http://www.galaxyzooforum.org/index.php?topic=277646.0
Forum thread: Ours and they are ...WOW" Mukund Vedapudi http://www.galaxyzooforum.org/index.php?topic=275042.0 Compare SDSS and Hubble images
Talk; compare SDSS and Hubble https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001de4
Forum Ultra Deep Image (from Hubble) http://www.galaxyzooforum.org/index.php?topic=280006.0 thousands of distant galaxies in a small bit of sky
Forum: http://www.galaxyzooforum.org/index.php?topic=277602.msg465804#msg465804
"When you buy a camera, may be you want to know the pro's and con's
about optics, sensor, image processing and so on. Between CCD and
Cmos sensor there are great differences on blooming artefact for
example: see http://dpanswers.com/content/tech_defects.php For zoo
images, I referred to SDSS "Famous Places - Artifacts"
http://casjobs.sdss.org/dr7/en/tools/places/page6.asp and more
convincingly you could browse any pipeline processing and get
explanations of defects. One readable is on Galex site
7.GALEX Image Artifacts http://www.galex.caltech.edu/DATA/gr1_docs/GR1_Pipeline_and_advanced_data_description_v2.htm#_Toc58822750
a few excerpts: The principal artifacts are: Bright star halos Bright
star beveled edge reflections Dichroic ghosts Detector window
ghosts Near-field stray light from bright stars Other artifacts are
produced by transient effects.? These include Unmasked detector hot
spots (hot spot masks are updated occasionally as hot spot come and
go) Satellite transits Asteroid motion Local flaring of detector
count rate caused by South Atlantic Anomaly, solar activity On the
GEMS tiles we see ghosts mostly from stars, or very bright galaxies
sources as large (dim red ) ghosts due to detector window Edge Ghost
by window Bevel Reflection"Hubble website: http://www.stsci.edu/hst/wfc3/documents/handbooks/currentIHB/c06_uvis06.html#387743
GZ Survey numbers and other surveys http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001bso
Forum: "Hubble's Hidden Treasures 2012" Contest http://www.galaxyzooforum.org/index.php?topic=280075.0 "In the HST Newscenter there is an announcement of a contest:
http://hubblesite.org/newscenter/archive/releases/2012/16/
by c_cldAfter one of my submission, the office published a picture of the week
(13 August 2012) of A Lonely Galactic Island DDO 190
http://www.spacetelescope.org/images/potw1233a/and granted me the Sixth prize in 'Hubble’s Hidden Treasures Revealed'
with SNR 0519-69 (which I processed after reading Zachary I. Edwards
et all on 'The Progenitor of the Type Ia Supernova that created SNR
0519-69.0 in the Large Magellanic Cloud' )I hope to get some news/ papers on ''The Cheshire cat" / OOTD Thurs
19 2012 Lens "The Cheshire Cat": Hubble view I also processed after
taking some interest on strong gravitational lensing systems.
previous known lens recovered from Hubble data by an amateurfind images in Hubble Legacy Archive http://hla.stsci.edu/
http://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ00018zb?page=1 where an amateur dug up a pretty imageRAIDERS OF THE HUBBLE ARCHIVE http://hubblesite.org/get_involved/hubble_image_processors/
STScI Appoints Head of Newly Created Data Science Mission Office http://hubblesite.org/newscenter/archive/releases/2016/44/full/ wi our own Dr. Arfon Smith. One of Smith's main goals is to help astronomers conduct their research by streamlining and simplifying how they access the MAST archive. "Trying to pull together decades of Hubble data, for example, is not only a data storage challenge for a researcher but also a technical challenge," Smith said. "So I think there is a huge opportunity to improve the tools and services around archival data that are available to the astronomers so that we can better empower their research. We should be helping people do the most amazing science they can possibly do." posted by zutopian https://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ00026ub?page=1&comment_id=583ddd2aaeb4425988000323
Forum: Hubble Zoo vs SDSS images of the same galaxy. http://www.galaxyzooforum.org/index.php?topic=281910.0 "The galaxy on the SDSS image shouldn't look just like a blob. In below first posts you can see, what I mean, but such cases are rare."
How to find more info on your Hubble galaxy? The short answer is that you can't. You are at the frontiers of knowledge. These Hubble galaxies are extremely distant, and dim blobs in other telescopes, so they won't be included in other surveys, such as SDSS.
You can go into the references cited in NED, and find a distance. A redshift z is determined by a spectra chart.. Redhsifts are usually correct when looking at emission galaxies, which have a big spike that the software can lock onto. Maybe not so good for galaxies with a flatter spectrum such as red ellipticals.
PHOT is a photoz which is a guess of the redshift by a software algorithm. It can be correct or wildly wrong.
I look at the lists of references, and if it says "emission galaxies" or "Lyman break galaxies" it gives me a clue about what the galaxy might be. The best you can do is learn about other galaxies and use your experience to guess the characteristics of this one, using shape and colour as clues. It doesn't help much to look at the article, they only have graphs, no images, and rarely talk about individual galaxies, and often have 20,000 objects that they have looked at. Some of the references you would need to pay for, some seem to give it out free in .pdf and some let you see and copy from computer-readable scientific papers.
You can go though the references, maybe come out with a fuzzy spectrum. It will be a lot of work for little information. Some of us are good at searching databases or making their own FITS images, I'm not one of them. Eventually I hope that the link to spectrum in NED will be connected to the databases.
You can try the search engine Google scholar www.google.com/scholar https://scholar.google.co.uk/ but it will probably take you back to the same references as NED.
The database SIMBAD is mostly for stars, and it has only the brighter galaxies, and it has the annoying habit of showing you the next closest object, so you think you have found your galaxy.
Have you looked through the featured discussions?
Astrophysics for Galaxy Zoo Talk - redshift z PhotoZ spectra emissions AGN http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp
Galaxy Zoo Index http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb which is half finished, but has a link to all topics that Galaxy Zooites need to know.
#1 How do I : Find out more information about the galaxy I have classified? (for the SDSS images)
http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0000lv2 The co-ordinates for the galaxy above are RA: 189.3777083, DEC: 62.1615786 which tells me that it in the north and will be on SDSS footprint. . http://skyserver.sdss.org/dr12/en/tools/chart/navi.aspx Put them in and see what you get.Explore data, do science, and share findings with Zoo Tools http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00005b7 Basically just click on "Open in Tools" on the Image page, or play with the filters in the Examine page. This can be used for looking for UV light, which indicates a high energy event. This is good for the CANDELS images, but not the GOODS images, the filter information is not fed into it.
A pure red, green or blue object is likely to be a cosmic ray hit, so it would be just an artifact. A cosmic ray will appear in only one filter image, eg green. But also remember that emission sources such as voorwerps might mostly appear in one filter.
There are Hubble images in Hubble Zoo http://www.galaxyzooforum.org/index.php?board=33.0 from 2010 to 2014, but most are the 2-colour images, so not very helpful.
Forum: Wednesday, 3rd October, 2012: Spirals, Forever Spirals by JeanTate http://www.galaxyzooforum.org/index.php?topic=280446.0 seeing spirals in CANDELS and SDSS images.
Forum:Wednesday, 10th April, 2013: "Uncanny Valley" Spiral Galaxies? by JeanTate http://www.galaxyzooforum.org/index.php?topic=280734.0 comparing colours in SDSS and CANDELS
Forum: Tues Jan 11 2011 Finding more information about a [Hubble] galaxy by Budgieye http://www.galaxyzooforum.org/index.php?topic=278750.0 try to look up more information in AEGIS, The Groth Strip, Keck, COSMOS, GOODS-N, ACS Tiles, GEMS and GOODS-S, SDSS , stripe82,
Posted
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Budgieye
moderator
6.4 AEGIS, Groth strip , GEMS
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6Forum: Tues Jan 11 2011 Finding more information about a [Hubble] galaxy by Budgieye http://www.galaxyzooforum.org/index.php?topic=278750.0 try to look up more information in AEGIS, The Groth Strip, Keck, COSMOS, GOODS-N, ACS Tiles, GEMS and GOODS-S, SDSS , stripe82,
Posted
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Budgieye
moderator
6.5 Infrared data CFHT (Canada France Hawaii Telescope) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
see also
5.5 Galaxy Zoo 4 Infrared images abd and BBC Stargazing Live http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=5&comment_id=53d8ba63db90c7673f00102e
VizieR provides the most complete library of published astronomical catalogues --tables and associated data-- with verified and enriched data, accessible via multiple interfaces. Query tools allow the user to select relevant data tables and to extract and format records matching given criteria.
Search for objects in VizieR, red objects, infrared objects, moving objects, GAIA search. VizieR extracts informationabout the object from each catalogue, Click on the catalogue if you need more information.
http://vizier.u-strasbg.fr/viz-bin/VizieR
http://vizier.u-strasbg.fr/index.gmlForum: IRAS catalogue http://www.galaxyzooforum.org/index.php?topic=279896.0 The Infrared Astronomical Satellite catalogue
Talk:UKIDSS artifacts planetaryscience http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ0000fd1 "blue nuclear rings, rainbow coloured satellite trails,
website: The Story So Far http://www.galaxyzoo.org/#/story The present day Galaxy Zoo combines new imaging from Sloan, giving us our best ever view of the local Universe, with the most distant images yet from Hubble's CANDELS survey. The CANDELS survey makes use of the new Wide Field Camera 3 - installed during the final shuttle mission to Hubble - to take ultra-deep images of the Universe, so who knows what's out there to be found?
Forum: 2MASX Catalog http://www.galaxyzooforum.org/index.php?topic=278490.0 The Two Micron All Sky Survey at IPAC "An unprecedented view of the Milky Way nearly free of the obscuring effects of interstellar dust, ...galaxies in the 60°-wide ``Zone of Avoidance,'' where dust within the Milky Way renders optical galaxy surveys incomplete.
.. cool, and thus extremely red (e.g., extremely low-luminosity stars and brown dwarfs), or heavily obscured at optical wavelengths (e.g., dust-obscured AGNs and globular clusters located in the Galactic plane)."Wiki: Wide-field Infrared Survey Explorer (WISE) is a NASA infrared-wavelength astronomical space telescope launched in December 2009,[3][4][5] and placed in hibernation in February 2011 when its transmitter turned off.[6] It was re-activated in 2013.[7] WISE discovered thousands of minor planets and numerous star clusters. Its observations also supported the discovery of the first Y Dwarf and Earth trojan asteroid. WISE performed an all-sky astronomical survey with images in 3.4, 4.6, 12 and 22 μm wavelength range bands, over ten months using a 40 cm (16 in) diameter infrared telescope in Earth orbit.[13] After its hydrogen coolant depleted, a four-month mission extension called NEOWISE was conducted to search for near-Earth objects such as comets and asteroids using its remaining capability https://en.wikipedia.org/wiki/Wide-field_Infrared_Survey_Explorer
Forum thread: UKIDSS images by Zutopian http://www.galaxyzooforum.org/index.php?topic=281436.0 GZ blog post : http://blog.galaxyzoo.org/2013/10/15/galaxy-zoo-continues-to-evolve/
Talk discussion: http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000bkm?page=2&comment_id=52630a5b72c1092dda000310
Talk topic: How to create and access UKIDSS images:
http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000c3v?page=1&comment_id=52629b6efe16d976020000aaMap of the available sky coverage here:
http://www.ukidss.org/surveys/las/las.htmlIn the attachment there is the UKIDSS image of NGC 3379.:
SDSS link: http://skyserver.sdss3.org/dr9/en/tools/chart/chart.asp?ra=161.95672&dec=12.58172&scale=0.7922&opt=&width=512&height=512
WISE Wide-Field Infrared Survey Explorer
The Milky Way Galaxy is X-shaped https://phys.org/news/2016-03-wise-reveals-x-shaped-bulge-galaxy.html
The X-shaped Bulge of the Milky Way revealed by WISE
Melissa Ness1,2 & Dustin Lang https://arxiv.org/pdf/1603.00026.
The Thirty Meter Telescope
Ground telescope, UV to Infrared
Many to be built
https://www.tmt.org/page/about#what-is-tmt
The Giant Magellan Telescope will be one member of the next generation of giant ground-based telescopes that promises to revolutionize our view and understanding of the universe. It will be constructed in the Las Campanas Observatory in Chile. Commissioning of the telescope is scheduled to begin in 2027.
https://www.gmto.org/overview/Posted
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Budgieye
moderator
6.6 radio data and Radio Galaxy Zoo https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
Hashtag: #radios radios
For science and images, see 3.6 relativistic jets in optical and radio http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3&comment_id=53d8b92adb90c76710000f93
Tutorial how to use "General Catalog Query Engine" in IRSA (Voorwerpje Hunt 2019)
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/860587Forum: AGC catalogue http://www.galaxyzooforum.org/index.php?topic=279945.0 AGC catalogue aka Arecibo General Catalog and ALFALFA ... 30,000 extragalactic HI line sources out to z~0.06, and its catalog will be especially useful in synergy with wide area surveys conducted at other wavelengths.
Blog: Radio Peas September 8, 2010 http://blog.galaxyzoo.org/2010/09/08/radio-peas/ "Why do we want to search for radio signals from the Peas? The radio emission comes from remnant supernovae which can accelerate relativistic electrons that emit synchrotron radiation. So when we are detecting star forming galaxies in radio emission, we are finding signatures from these supernovae, which tell us about the stars that live (or lived) in the galaxy. Therefore, using the radio emission we can trace recent star formation activity in the galaxy... they are the closest analogues to a class of vigorously star forming galaxies found in the early universe (known as Lyman Break Galaxies)" but closer and easier to study
Blog: Hola from Pico Veleta December 2008 http://blog.galaxyzoo.org/2008/12/30/hola-from-pico-veleta/ IRAM SEO Services UK millimeter radio telescope. We’ll be looking at merging galaxies selected from the Galaxy Zoo catalogues, and then at some of the nearest blue ellipticals.
Blog: Observing, Spanish style November 2008 http://blog.galaxyzoo.org/2008/11/12/observing-spanish-style/ he giant 30m radio dish of the IRAM observatory above Granada for not one, but two Zoo projects mergers and black holes in ellipticals. looking for the signature of carbon monoxide (CO) in the galaxies.
Galaxy Zoo Radio : In search of erupting black holes http://radio.galaxyzoo.org/ This link leads to the archive. To get into talk use https://radiotalk.galaxyzoo.org/?_ga=2.110355587.788317030.1578982202-1541936612.1578982202
Science http://radio.galaxyzoo.org/#/science
Team http://radio.galaxyzoo.org/#/team Ivy Wong, Jule Banfield, Ray Norris, Larry Rudnick, Stas Shabala,Ed Paget, Brooke Simmons , Robert Simpson, Amit Kapadia, Chris Snyder, Robert Hollow, Laura Whyte, Kelly Borden, Melanie Gendre, Lucy Fortson, Tom Jones, Chris Lintott, Karen Masters, Enno Middelberg, Kevin Schawinski, Nick Seymour, Kyle Willett, Heinz Andernach, Anna Kapinska, Sugata Kaviraj
Figure 1: 0313-192 The wrong galaxy from the Astronomy Picture of the Day Jan 14 2003. Credit: W. Keel (U. Alabama), M. Ledlow (Gemini Obs), F. Owen (NRAO, AUI, NSF, NASA.Blogs: http://blog.galaxyzoo.org/category/radio-galaxy-zoo/
Blog: The Hunt Is On by 42jkb [Julie Banfield] July 2014 http://blog.galaxyzoo.org/2014/07/31/the-hunt-is-on/ "One of our scientists Prof. Ray Norris put the call out to the Radio Galaxy Zoo community for a hunt on spiral galaxies hosting powerful radio sources. The first known galaxy of this type is 0313-192, a galaxy much like our Milky Way and has left astronomers baffled."
Blog: The Curious Lives Of Radio Galaxies – Part One by Anna Kapinska February 2014 http://blog.galaxyzoo.org/2014/02/03/the-curious-lives-of-radio-galaxies-part-one/ "he early and mid stages of radio galaxy life that take up the majority of the radio galaxy lifetime."
Blog: The Curious Lives of Radio Galaxies – Part Two by Anna Kapinska February 2014 http://blog.galaxyzoo.org/2014/02/04/the-curious-lives-of-radio-galaxies-part-two/ aging radio galaxies.
Blog: Sunset in Hawai’i by Chris Lintott July 2014 http://blog.galaxyzoo.org/2014/07/12/sunset-in-hawaii/ We’re here to follow up on a host of Galaxy Zoo blue ellipticals, trying to use the Caltech Submillimeter Observatory to catch the signature of Carbon Monoxide – gas which might provides the fuel for star formation.
Blog: Thanks for the photons Hawaii – Last night of the CSO run by Meg Schwamb July 2014 he Oxford Galaxy Zoo Team, http://blog.galaxyzoo.org/2014/07/17/thanks-for-the-photons-hawaii-last-night-of-the-cso-run/ " I’ve been helping to observe on the Caltech Submillimeter Observatory on Mauna Kea"
Blog: Radio interferometry, Fourier transforms, and the guts of radio interferometry (Part 1) by Enno Middelberg June 2014 http://blog.galaxyzoo.org/2014/06/24/radio-interferometry-fourier-transforms-and-the-guts-of-radio-interferometry-part-1/ "if the two telescopes point at the same source, the data streams will have a few bits in common,[...]
Blog: Radio interferometry, Fourier transforms, and the guts of radio interferometry (part 2) by Enno Middelberg July 2014 http://blog.galaxyzoo.org/2014/07/01/radio-interferometry-fourier-transforms-and-the-guts-of-radio-interferometry-part-2/
"So in summary: a radio interferometer makes measurements of the similarity of the electric field at two locations, and the degree of similarity represents the Fourier transform of the sky radio brightness for the two antennas in that instant. Astronomers then reconstruct the sky brightness from all these measurements taken together – that’s also why the technique is called “synthesis imaging”, or “aperture synthesis”. "Blog: IFRS: The first supermassive black holes? by Ray Norris January 2014 http://blog.galaxyzoo.org/2014/01/24/ifrs-the-first-supermassive-black-holes/ "some bright radio sources don’t have any infrared sources at all associated with them, and they have been given the hashtag #ifrs, for Infrared-Faint Radio Sources. So what are these IFRS?"
VLA radio image of 3C 465, why does the radio tail bend?
Note: tail here refers to the tail of a relativistic jet, not a tidal tail of a disturbed galaxy
Blog: Tailed Radio Galaxies: Cometary-Shaped Radio Sources in Clusters of Galaxies (Part 1) by Heinz Andernach January 2014 http://blog.galaxyzoo.org/2014/01/16/more-information-on-tailed-radio-galaxies-part-1/ " authors seem to converge on the compromise idea that the combination of high ambient density and modest speeds of the host galaxy with respect to the ambient medium are able to produce the bends, but in this blog I would rather like to concentrate on the variety of morphologies shown by these objects in order to help RGZ users to classify them."
Blog: More Information on Tailed Radio Galaxies (Part 2) by Heinz Andernach January 2014 http://blog.galaxyzoo.org/2014/01/17/more-information-on-tailed-radio-galaxies-part-2/ projection of the inner jets along the line of sight
Blog: Radio Galaxy Zoo: New tools in Talk by Kyle Willett http://blog.galaxyzoo.org/2014/01/06/radio-galaxy-zoo-new-tools-in-talk/ "The new tools in RGZ now link to four catalogs (FIRST, NVSS, SDSS, and WISE) for each galaxy along the bottom of each image. FIRST and NVSS are radio surveys, SDSS is optical, and WISE is infrared."
Blog: Radio Galaxy Zoo: How were the images made? by Enno Middelberg, December 2013 http://blog.galaxyzoo.org/2013/12/21/radio-galaxy-zoo-how-were-the-images-made/ "Radio and infrared waves are not necessarily emitted by the same material and can therefore be displaced from one another in a galaxy. That’s why we need your help to determine what radio blobs belong to which infrared blob!"
The tutorial image for Radio Galaxy ZooBlog: Radio Galaxy Zoo: a close-up look at one example galaxy by Kyle Willett December 2013 http://blog.galaxyzoo.org/2013/12/19/radio-galaxy-zoo-a-close-up-look-at-one-example-galaxy/ " From their shape, this looks like what we would call a classic “double lobe” source. There are two radio blobs of similar size, shape, and brightness; almost exactly halfway between them is a bright infrared source. Given its position, it’s a very good candidate as a host galaxy, poised to emit the opposite-facing jets seen in the radio."
Blog: Welcome to Radio Galaxy Zoo! by Ivy Wong December 2013 http://blog.galaxyzoo.org/2013/12/17/welcome-to-radio-galaxy-zoo/ " Supermassive black holes lie deep in the cores of many galaxies. And though we cannot directly see these black holes, we do occasionally see the huge jets originating from the cores of some galaxies. However, most of these jets can only be seen in the radio....help us map the radio sky by matching the radio jets and filaments to the galaxies (via the infrared images) "
Blog: We’re Observing at the Very Large Array! by karenlmasters December 2013 http://blog.galaxyzoo.org/2013/12/13/were-observing-at-the-very-large-array/ "some very interesting very gas rich and very strongly barred galaxies we identified in the Galaxy Zoo 2 sample (the bit which overlaps with the ALFALFA survey which measures total HI gas in each galaxy)....We’re trying to detect emission from atomic hydrogen in these galaxies which emits at 21cm."
Blog: RGZ Team Spotlight: Lawrence Rudnick Februray 2014 http://blog.galaxyzoo.org/2014/02/07/rgz-team-spotlight-lawrence-rudnick/ "on clusters of galaxies and their connections with large scale structure."
Blog: RGZ Team Spotlight: Enno Middelberg January 2014 http://blog.galaxyzoo.org/2014/01/30/rgz-team-spotlight-enno-middelberg/ "radio surveys of large portions of the sky, and also where I got involved in radio interferometric observations of large fields with continent-sized baselines (Very Long Baseline Interferometry). "
Blog: RGZ Team Spotlight: Anna Kapinska http://blog.galaxyzoo.org/2014/01/27/rgz-team-spotlight-anna-kapinska/ how radio galaxies grow and how they influence our evolving Universe
Blog: RGZ Team Spotlight: Ivy Wong http://blog.galaxyzoo.org/2014/01/23/rgz-team-spotlight-ivy-wong/ nterested in the how/why galaxies start and stop forming stars. She is currently obsessed with galaxies that have suddenly stopped forming stars (aka ‘post-starburst’ galaxies), blue spheroidal galaxies and galaxy interactions in general.
Website: Volunteer black hole hunters as good as the experts http://www.icrar.org/news/news_items/black-hole-hunters
Forum: Sunday, 24 July 2011: Arp 220: Dust and Molecular Gas by EigenState http://www.galaxyzooforum.org/index.php?topic=279339.0 " bright central region is a glowing cloud of exceedingly hot (» 106 K) gas rushing out of the galaxy, driven by a "superwind" presumed to result from explosive activity generated by the formation of hundreds of millions of new stars...spectrum of Arp 220 [2] observed over the range of 200 to 700 μm (1500 to 427 GHz) shows strong emission features from pure rotational transitions of CO and H2O; high rotational transitions of HCN in absorption; rotational transitions of the rare molecules OH+, H2O+, and HF in absorption; as well as electric-quadrupole allowed, fine structure transitions within the ground electronic states of the atomic species [CI] and [NII]"
- Introduction to Arp 220.
- Interstellar Dust.
2.1. Extinction.
2.2. Emission. - Molecular Gas.
3.1. Molecular Vibration.
3.2. Molecular Rotation. - Spectroscopic Investigations of Arp 220.
4.1. Continuum Emission in Arp 220.
4.2. Molecular Spectra in Arp 220. - Conclusions.
- Acknowledgments.
- References and Notes.
Talk: Arp 220 and "The Big Bang Theory [TV show]" by Budgieye http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00016fq "There are usually scientific equations on the whiteboards, and finally I recognized something that I understood. Arp 220 featured In "The Closure Alternative" 2013 "
Hubble: Radio jet found in spiral galaxy. http://www.nasa.gov/image-feature/goddard/2016/hubble-finds-misbehaving-spiral http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001ti0
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Budgieye
moderator
6.7 DECaLS and PanSTARRS and GAMA/KiDS https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
Left: an SDSS image of the galaxy J225336.34+000347.4. Right: a DECaLS image of the same galaxy.
Blog: New images for Galaxy Zoo! Part 1 – DECaLS September 21, 2015 by Kyle Willett
https://blog.galaxyzoo.org/2015/09/21/new-images-for-galaxy-zoo-part-1-decals/
"The Dark Energy Camera Legacy Survey (DECaLS) is a public optical imaging project that follows up on the enormous, groundbreaking work done by the various versions of the SDSS surveys over the past decade. The aim of DECaLS is to use larger telescopes to get deeper images with significantly better data quality than SDSS, although over a somewhat smaller area. The science goals include studies of how both baryons (stars, gas, dust) and dark matter are distributed in galaxies, and particularly in measuring how those ratios change as a galaxy evolves. By adding morphology from Galaxy Zoo, our joint science teams will explore topics including disk structure in lower mass galaxies, better constraints on the rate at which galaxies merge, and gather more data on how the morphology relates to galaxy color and environment..."
Talk: DECaLS - new images and science by KWillett ADMIN, SCIENTIST http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001kaa
"One very neat place to start is the DECaLS Explorer - the extremely smart @dstn, of Carnegie-Mellon University, has created an interface to the DECaLS imaging that works much the same way that the SDSS navigator does. One of the really powerful things about DECaLS is that the way they both detect and characterize the sources in their images is through a sophisticated code called Tractor. You can see the models that it produces for each source by selecting different layers in the upper right of the DECaLS Explorer.http://legacysurvey.org/viewer
OK - many users have raised interesting questions about the images that are coming up, often with features that are obvious only in one or more bands (remember that the color images you're classifying are a combination of three different filters). Since the GZ Examine tool doesn't work on the current images, at least for the moment, I wanted to show how you can download the raw images yourself."
Blog: Finished with two more sets of galaxy images! February 18, 2016 by Kyle Willett http://blog.galaxyzoo.org/2016/02/18/finished-with-two-more-sets-of-galaxy-images/ "I’m happy to report that in the last several days, we’ve simultaneously finished the initial sets of galaxies from both the DECaLS survey and the second subset of simulated galaxies from Illustris. This has meant the completion (since last September) of more than 50,000 galaxies seen 40 times apiece, for more than 2 MILLION classifications. So far, your work is helping reveal new insights based on this deeper data. One very preliminary result: as we’d predicted, the better conditions in DECaLS (bigger camera, better night sky seeing, larger telescope mirror) are revealing galaxies that were classified in SDSS as smooth, but in fact with faint or extended disks and features that are now visible. This is really exciting, and is helping to modify our ideas of the assembly histories of these galaxies."
website: http://legacysurvey.org/status/ Survey Status: The DECam Legacy Survey observations began in August 2014. Each position in the sky will be observed in three "passes" in each of three filters (g, r, z). "Pass 1" is observed in photometric, good-seeing conditions. "Pass 2" and "Pass 3" are observed in progressively worse conditions. This strategy will ensure a photometric solution across the full survey area. In addition to the DECam Legacy observations, data releases will include reductions of data from other programs in the same filters that overlap this footprint. The image below depicts the status of the survey as of early December 2015.
Talk: More asteroids https://talk.galaxyzoo.org/?_ga=1.244656832.476670387.1443719759#/boards/BGZ0000005/discussions/DGZ0001tya
Yeah can never find them around, if im correct there was a mention of them not being imaged on the same night, still open question in DECaLS thread.
http://talk.galaxyzoo.org/?_ga=1.244656832.476670387.1443719759#/boards/BGZ0000001/discussions/DGZ0001kaa
Talk; New images on DECaLS sky viewer by Ghost_Sheep_SWR https://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ0002jf1?page=1&comment_id=594adbec61ec36366800104a
check it out: http://legacysurvey.org/viewer?ra=194.9219&dec=40.1937&zoom=14&layer=mzls+bass-dr4
Northern hemisphere with The Mayall z-band Legacy Survey (MzLS) and The Beijing Arizona Sky Survey (BASS).
More info here:
MzLS: http://adsabs.harvard.edu/abs/2016AAS...22831702S
BASS: http://adsabs.harvard.edu/abs/2017arXiv170203653Z and http://adsabs.harvard.edu/abs/2017AJ....153..276Z
So much of DECaLS is only in red, so the green and blue will make better coloured images.
https://www.as.arizona.edu/bass-project
The survey will use approximately 240 nights, covering SDSS g and r bands, reaching limiting AB magnitudes of 24.0 and 23.4 (5σ compact extended source), respectively. This is roughly 1.5 magnitudes deeper than the corresponding SDSS imaging in this part of they sky,
PanSTARRS
https://arxiv.org/pdf/1612.05560.pdf
https://confluence.stsci.edu/display/PANSTARRS/PS1+Image+artifacts+and+anomalies
Panchromatic Swarp Imager
A multi-band image cutout routine for GAMA objects http://cutout.icrar.org/psi.phpGAMA-KiDS
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Budgieye
moderator
6.8 UV and X-ray telescopes https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
Blog: Chandra Program to study Galaxy Zoo Mergers approved July 16, 2010 http://blog.galaxyzoo.org/2010/07/16/chandra-program-to-study-galaxy-zoo-mergers-approved/ " These targets are a set of beautiful merging galaxies discovered by YOU as part of Galaxy Zoo 1 and the Merger Hunt. The 12 approved targets are here:...These 12 mergers are all very pretty, but they have something else in common: they all host active galactic nuclei (AGN) – feeding supermassive black holes at their centers. X-rays are great for finding such hungry black holes, but we already know that all 12 of these mergers are AGN, so why observe them again? We’re looking for a mythical rare beast: the binary AGN!"
Blog: UV(oorwerp) from Space March 4, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/03/04/uvoorwerp-from-space/ a very nice sky browser – GALEXView – which will show you the UV-color images for any piece of sky GALEX has observed, and give you object lists and file retrieval options.
Blog: What if astronomers had Superman's X-ray vision? by Shanil Virani April 2009 http://blog.galaxyzoo.org/2009/04/27/what-if-astronomers-had-supermans-x-ray-vision/ "With X-ray instruments, you get imaging and spectroscopic data and timing data all in one go if your source is bright enough or if you stare at it long enough! It is exactly these attributes we intend to exploit in the data returned by our Suzaku and XMM-Newton observations of Hanny’s Voorwerp to determine if IC 2497 does indeed host a supermassive black hole! " and how X-ray telescope collects X-rays
Blog: Getting ready for some hard-X-ray observing… March 2009 http://blog.galaxyzoo.org/2009/03/27/getting-ready-for-some-hard-x-ray-observing/ "..21 hours) of Suzaku time. Suzaku is a Japanese-led space telescope that observes hard X-rays. Hard X-rays have the handy property of penetrating just about everything, even the most messy gas and dust that tends to collect in the centres of galaxies and around supermassive black holes. We’re pointing Suzaku and its instruments at IC 2497, the massive galaxy next to Hanny’s Voorwerp. "
XMM-NewtonArtist impression of XMM-Newton in space (from esa)
The XMM-Newton, also known as the X-ray Multi-Mirror Mission and the High Throughput X-ray Spectroscopy Mission, is an orbiting X-ray observatory launched by ESA (from Wikipedia)
Blog: 4 Calling birds, 3 French hens, 2 Turtle Doves and 37,000 seconds of XMM-Newton Time http://blog.galaxyzoo.org/2008/12/21/4-calling-birds-3-french-hens-2-turtle-doves-and-37000-seconds-of-xmm-newton-time/ "One of the Big Questions about the Voorwerp is whether the quasar in IC 2497 (the spiral galaxy next to it) has really shut down, or whether it’s just hidden (obscured) by lots of gas and dust around it. With the help of this X-ray observation, we will hopefully be able to tell the difference between these two scenarios. When supermassive black holes feed, they emit radiation at many wavelengths, but X-rays are the most reliable measure of just how much material they really are gobbling up. "
Blog: Getting Observing Time December 2008 http://blog.galaxyzoo.org/2008/12/29/getting-observing-time/ We wanted to learn more about what physics the Voorwerp can teach us and one of the biggest questions about it is whether the supermassive black hole in IC 2497 (the spiral galaxy next to it) has really shut down, or if it is still a quasar and feeding. All indications so far are pointing towards a shutdown, but perhaps the quasar is really hidden by plenty of material in the way. So, we would like to use the X-ray vision of XMM-Newton, a 3.8 ton, bus-sized X-ray space telescope operated by the European Space Agency to take a look and see if any X-rays still get to us. Even if the quasar was highly obscured, some of the X-rays might still get through.
Forum: X-ray sources by RandyC http://www.galaxyzooforum.org/index.php?topic=278355.0
website: Panchromatic Swarp ImagerA multi-band image cutout routine for GAMA objects http://cutout.icrar.org/psi.php "Service always functioned iffy for me, and cutouts aren’t permanent. But just use ‘all greyscale bands’ to see which are available then redo with RGB filter combinations."
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Budgieye
moderator
6.9 Other telescope images https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
website: Aladin Desktop is the main application of the Aladin Sky Atlas suite. http://aladin.u-strasbg.fr/java/nph-aladin.pl?frame=downloading
from website The Large Synoptic Survey Telescope : LLST http://www.lsst.org/lsst/ To be completed by about 2022. It will cover most of the sky twice each week, creating huge amounts of data. Looking for things that change, asteroids, supernova, also will map dark matter and dark energy. "Q: What does “Synoptic” mean?
A: Our use of the word derives from the greek word “Synopsis” and refers to looking at all aspects of something. "The future of Galaxy Zoo in LSST, the Large Synoptic Survey Telescope by Budgiey https://talk.galaxyzoo.org/?_ga=2.51297966.683235694.1562134052-1109621914.1546359727#/boards/BGZ0000007/discussions/DGZ0001zfr
Blog: A Galaxy Zoo – WorldWide Telescope Mashup September 1, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/09/01/a-galaxy-zoo-worldwide-telescope-mashup/ "We’re excited to announce the integration of WorldWide Telescope with Galaxy Zoo favorites. Over the past few months we have had the opportunity to work with Microsoft Research to bring your favorite galaxies to WorldWide Telescope"
Aladin has both online and offline versions, and with it you can plot/overlay information (including 'images') from just about every astronomy catalog and survey ever published (though it can take a while to learn how to use it). SkyView is similar.- info from Jean Tate
WorldWide Telescope http://www.worldwidetelescope.org/ from wiki
Sky mode is the main feature of the software. It allows users to view
high quality images of outer space with images from many space and
Earth-based telescopes. Each image is shown at its actual position in
the sky. There are over 200 full-sky images in spectral bands ranging
from radio to gamma. There are also thousands of individual study
images of various astronomical objects from space telescopes such as
the Hubble Space Telescope, the Spitzer Space Telescope in infrared,
the Chandra X-ray Observatory, COBE, WMAP, ROSAT, IRAS, GALEX as well
as many other space and ground based telescopes.[5] Sky mode also
shows the Sun, Moon, planets, and their moons in their current
positions.Posted
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Budgieye
moderator
6.10 Google Sky https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=6
website: Google Sky https://www.google.com/sky/
also Google Earth / Sky option https://sites.google.com/site/geclusters/
Talk: Neutron star http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ000121a?page=1&comment_id=5469ab5f415ac10e43000004 outside links to neutron star neutron star in center of Crab Neblua, in Google Sky, with X-ray telescope. There are two stars close together, I think the neutron star is to the left.
https://www.google.com/sky/#latitude=22.014131341325147&longitude=-96.36564409255982&zoom=16&Spitzer=0.00&ChandraXO=100.00&Galex=0.00&IRAS=0.00&WMAP=0.00&Cassini=0.00&slide=8&mI=1&oI=4 It is just outside the dr10 footprint. Isolated Neutron star above is also out the of the Dr10 footprint. Most Milky Way objects are, since SDSS avoids the Milky Way bar drawingBlog: Google Powered GZ2 Bar drawing spin off, 1 down…. October 5, 2009 by Ben and Karen http://blog.galaxyzoo.org/2009/10/05/google-powered-gz2-bar-drawing-spin-off-1-down/ link to site, now inactive
Blog: Google-powered Bar-drawing Zoo2 offshoot by Ben and Karen Sept 2009 http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb "We’ve made a sample of interesting galaxies from Galaxy Zoo2, most of which have bar structures, and we would like you to measure the length and thickness of the bars. Also we’d like you to check the shape of the galaxy and tell us how the spiral arms and bars are linked....We are also pioneering the use of the Google Maps interface for Galaxy Zoo science, which allows us to perform tasks like drawing on galaxies. Please note, that the bar drawing pages work best with Mozilla Firefox. ...We’ve describe the our science rationale: htp://www.icg.port.ac.uk/~hoyleb/bars/tutorial.php#s1 and there is a forum topic related to this page: http://www.galaxyzooforum.org/index.php?topic=276269.0 "
Blog: Flying amongst galaxies September 5, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/09/05/flying-amongst-galaxies/ "As anyone who has created their own tour will tell you, Microsoft’s WorldWide Telescope is a fantastic tool for exploring the Universe. While the web based version will do for viewing your Galaxy Zoo favourites, the real power comes with downloading the new `Aphelion’ release – which depended on Galaxy Zoo users for one of its best features. Worldwide Telescope gives you the chance to fly amongst the galaxies of the Sloan Digital Sky Survey. While before each galaxy was represented by a randomly selected image, in the new version the correct type of galaxy is shown in the correct position. The team at Microsoft relied on Galaxy Zoo to tell them where to put a spiral and where an elliptical, and then matched templates to the observed size and brightness. As a result, in flying around the Sloan you’re also exploring the results of all those clicks – which should inspire you to get back to Zoo 2 for more."
Blog: Make your own tours with Galaxy Zoo and Google Earth July 7, 2009 by Ben http://blog.galaxyzoo.org/2009/07/07/make-your-own-tours-with-galaxy-zoo-and-google-earth/ Forum: Google Sky tours etc http://www.galaxyzooforum.org/index.php?topic=274907.0
Blog: Google helps out Galaxy Zoo July 2008 http://blog.galaxyzoo.org/2008/07/15/google-helps-out-galaxy-zoo/ "We will incorporate ‘GoogleSky’ technology into the website so it resembles the Google Maps interface. Then we will put Galaxy Zoo into the Google Sky and Google Citations Pros interface which will allow people to zoom around the universe, click on any galaxy and classify it more easily.”
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Budgieye
moderator
Index for Galaxy Zoo Talk: Using Data https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
7.1 spectral charts, MaNGA 7.2 redshift z and photometric Z (PhotoZ) 7.3 Measure distance and size 7.4 using NED 7.5 using SIMBAD 7.6 catalogs of galaxies 7.7 data analysis and FITS images 7.8 computer recognition of galaxies 7.9 education and outreach magazines 7.10 *She's an astronomer*
7.1 Spectral Charts, MaNGA https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
Talk: Astrophysics for Galaxy Zoo Talk - redshift z PhotoZ spectra emissions AGN by Budgieye http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp If you want to learn more about galaxies, here are links to useful information from Talk, Forum and the SDSS website and other places
PAGE 1 see below for finding information in Talk Galaxy Zoo ,http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp
PAGE 2 Galaxy Redshift Chart http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000ulp?page=2 The colours of different types of galaxies from close to distant.
PAGE 3 Spectra guide for Galaxy Zoo Talk http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp?page=3&comment_id=53fef2ee3d5a77490c0001b6 How to read spectral charts. Also, links here are links to useful information from Talk, Forum and the SDSS website and other places
Forum: Zooite Guide to SDSS Spectra by Budgieye http://www.galaxyzooforum.org/index.php?topic=274815.0 The forum is locked, and the guide cannot be updated.There are many broken links that cannot be repaired.
Forum: Colours of Galaxies in SDSS : Redshift chart by Budgieye http://www.galaxyzooforum.org/index.php?topic=277142.0 The forum is locked and the guide cannot be updated.
Forum: Tutorial bits on galaxy spectra by NGC3314 http://www.galaxyzooforum.org/index.php?topic=1923.0 Explanations from our mentor, Dr Keel
Forum: Newbies, post your spectrum questions here Thomas J http://www.galaxyzooforum.org/index.php?topic=276308.0
SDSS website: Quasar spectra workshop http://www.sdss.org.uk/dr7/en/proj/challenges/quasars/
SDSS website: Redshift Gallery: Quasars http://classic.sdss.org/gallery/gal_zqso.html Excellent selection of quasar spectra from z=0.1 to 5.0
note: SDSS is now bundling its fibre optic cables together to get spectra from the entire galaxy, not just the centre. I will look for reference, in the meantime http://www.sdss.org/releases/proof-that-some-galaxies-are-liers/
SDSS website: the equations for determining peaks of starforming, starburst, AGN and quasars
https://www.sdss.org/dr12/spectro/catalogs/
website: Guess the Spectra! http://www.dartmouth.edu/~mackenziejones/Guess_the_Spectra.pdf A simple guide for starting
Forum: Post Starburst galaxies http://www.galaxyzooforum.org/index.php?topic=277679.0 with spectra
Forum: Friday 21 May 2010 Peas! Blue, purple, white, green and red http://www.galaxyzooforum.org/index.php?topic=277749.msg464364#msg464364 images and spectra of different coloured "peas"
Forum: Spectra of supernova in SDSS, superimposed on galaxy spectra by c_cld http://www.galaxyzooforum.org/index.php?topic=4767.msg576480#msg576480 controversy, might be a distant quasar.
by Zutopian http://www.galaxyzooforum.org/index.php?topic=4767.msg567459#msg567459 "ATel #3474; E.O. Ofek, A. Gal-Yam, P. Groot
on 5 Jul 2011; 23:43 UTAn inspection of the spectrum of SDSS J130623.89-014033.6 (plate=339; mjd=51692; fiber=524) which was classified as a z=4.512 quasar by the SDSS-DR8 automatic classification, suggests that it is in fact a type-II supernova at z=0.019.
'Blog: Operations at Kitt Peak June 20, 2010 http://blog.galaxyzoo.org/2010/06/20/operations-at-kitt-peak/ "On our telescope we have Gold Cam, a spectrograph and camera which allows us to analyse the light from galaxies and Voorwerpjes alike. By splitting up their light in to all its component colours, we can tell a great deal about each object, from how far away it is to what kind of atoms make it up and what state these atoms are in . To get the best out of this system however we need to prepare and calibrate it each night. The first thing we have to do is get the system nice and cold....liquid nitrogen"
CCD cooled with liquid nitrogen
diffraction gratingBlog: A Kitt Peak gallery June 29, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/06/29/a-kitt-peak-gallery/ "Primary mirror of KPNO 2.1m telescope
The CCD we were using to detect the spectra works most efficiently when cool – really cool. Its kept in contact with a bath of liquid nitrogen, that had to be refilled every 12 hours. You know it’s full not when vapor pours out of three ports behind it, but when droplets of liquid nitrogen can be heard hitting the floor. That plastic face shield seemed like a better and better idea."Blog: Hunting Voorwerpjes from Arizona June 15, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/06/15/hunting-voorwerpjes-from-arizona/ "at Kitt Peak again, this time using a spectrograph to chase down Voorwerpjes. As the Dutch diminutive indicates, these are like Hanny’s Voorwerp, only smaller. Zooites have given us a rich new list of potential objects, many from the special object hunt set up by Waveney incorporating database queries done by laihro, and more from reports on the Forum. They often show up as oddly-shaped blue zones on the SDSS images, when strong [O III] emission lies in the SDSS g filter. At some redshifts, they look purple, when Hα enters the i filter."
Two-dimensional spectrum of UGC 7342 showing very extensive ionized gas.
Use of Grism prism
posted by ramberts in p13 http://talk.galaxyzoo.org/?&_ga=1.172416035.1250538510.1430670718#/boards/BGZ0000006/discussions/DGZ0001cnq
Here's some comments from an article about these galaxies.
http://www.aanda.org/articles/aa/full/2005/16/aa1532/aa1532.html
"Figure 13 shows a peculiar system of three sources: two emission-line sources above (~1.5 arcsecond) and below (~3 arcsecond) the main galaxy GDS J033228.88-274129.3, clearly visible in the ACS color image and in the two dimensional spectrum. The same target has been observed in two different masks adopting the same orientation of the slits. The total exposure time is $\simeq$43 ks. The extracted one dimensional spectra are shown in the right side of the Fig. 13.
The main galaxy GDS J033228.88-274129.3 has a redshift z=0.733 with both emission and absorption lines measured (quality flag "A''): [O II]3727, MgI, Ca H and K, g-band, etc. The bottom object (GDS J033228.84-274132.7) shows a solo-emission line at 7052 Å (see the 1-D spectrum), and is not detected in the ACS B band, we interpret this line as Ly$_{\alpha }$ at z=4.800 with quality "C''.
The source above GDS J033228.88-274129.3 is most probably a Ly${\alpha }$ emitter at redshift z=4.882 (quality "B''). The spectrum has been extracted subtracting the contamination of the tail of the main galaxy. After the subtraction the shape of the spectrum shows the blue cut-off and the Ly${\alpha }$ forest continuum break, typical of the LBGs."
reply from Budgieye "Nice! A clear example of how a Grism spectra works! The prism was positioned at an angle to get all three in the same run and the light from all 3 object was put through a Grism prism which smears out light This is how the wavelengths of light are separated out into a spectrum.. The two closer objects have their spectra mixed up together. You can see the distant galaxy's Lyman alpha emission lurking in the orange galaxy spectra, although slightly off-center. The galaxy below is clear of the orange galaxy and the spectrum is separate, and it has only one peak, nothing else.
The main galaxy has a Oii peak, indicating that there is star formation happening. If it has a Lyman peak, it would be off the image to the left. Lyman UV light is difficult to detect in "closer" galaxies, because it requires different equipment.
The two distant green galaxies have Lyman-alpha emission, so also lots of star formation. The galaxy at the top is further away, as it light has been redshifted further to the right."
Forum: Saturday, 17th August, 2013: White by JeanTate http://www.galaxyzooforum.org/index.php?topic=281083.0 Post-quench galaxies " a scatterplot I created using Tools; it plots the colors of (almost) all the 3002 objects in the Quench Sample catalog [7], one blue point for each object... " the absorption spectra of dusty galaxies.
Forum: Friday 9 December 2011: The H-beta aberration by laihro http://www.galaxyzooforum.org/index.php?topic=279704.0 After much work, laihro and c_cld decided that the impossible charts were an artifact.
Forum discussion: Bad Chart Thread http://www.galaxyzooforum.org/index.php?topic=10095.0 bad charts, meaning ones where the peaks do not match the tags on the spectral chart. but also has other errors.
Forum: Wednesday, 23rd January, 2013: AGN? Starburst? Both?? Jean Tate http://www.galaxyzooforum.org/index.php?topic=280601.0 Spectra and BPT diagram.
Forum: Sunday 3rd March 2013: what broadens spectral lines? by Alice http://www.galaxyzooforum.org/index.php?topic=280662.0 Collisions, heat and redshift, and quasars have all three of these.
Forum: Wednesday, 19th December, 2012: Pixel Ruler by JeanTate http://www.galaxyzooforum.org/index.php?topic=280563.0 for determining peaks on DR7 spectra. DR9 and higher now have a built-in tool for this.
Forum: Thurs Nov 1 2012 An unusual spectrum by Budgieye http://www.galaxyzooforum.org/index.php?topic=280487 BAL quasar? Red Star?
Forum; Thursday, 8 November 2012: A New Einstein Cross Gravitational Lens http://www.galaxyzooforum.org/index.php?topic=280490.0 an anomalous spike in a spectrum led to finding exciting lens in a spiral galaxy nucleus.
Forum: Wednesday, 9th February, 2011: a galaxy, with ... eggs?!? by JeanTate http://www.galaxyzooforum.org/index.php?topic=278912.0 "Suppose you have a spectrum, of a faint piece of fuzz in the sky, and it has but one emission line. Can you determine a redshift, from just that one line? Confidently? Well, the authors of that paper presented what they consider to be a reasonably robust method of deciding - fairly reliably - whether that single emission line is [OII] 372.7 nm (high redshift object) or H-alpha (low redshift one). Pretty impressive, eh?"
Forum: hot spectra of IC 2520 IC2520 http://www.galaxyzooforum.org/index.php?topic=280422.msg616383#msg616383
http://blog.sdss.org/wp-content/uploads/2014/08/klaenemount-300x225.jpg
SDSS website: SDSS Plates The SDSS has used thousands of plug plates in its fourteen year history. These are large aluminium plates into which tiny holes are drilled. Each hole has an optical fibre plugged into it (by hand by our plate pluggers). Each hole corresponds to the sky location where there is an object (a star or a galaxy) which SDSS wants to measure a spectrum for. During SDSS spectroscopic observations, between six and nine of these are used every night. Each plate is custom drilled for a special part of the sky (about the size of your palm stretched out at arms length), and once all the data is collected for the astronomical objects in that plate, it becomes surplus to requirements.All SDSS Collaboration members can request that used plates be sent to them (contact your Collaboration Council Representative for assistance with this). This has resulted in some interesting uses for the leftover plates across our diverse collaboration. http://blog.sdss.org/2014/09/19/sdss-plates/
Talk; Star, but fuzz around it [Star in front of galaxy, and the spectral chart is a mix of both] https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0002dsc?page=1&comment_id=58a0e5827d25c700790000ce
Talk: Distance of objects [Blue irregular and yellow spiral galaxy spectral charts mixed together] https://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0002doe?page=1&comment_id=58a012147d25c756d0000053
MaNGA
taking many spectral charts of each part of a galaxy to measure redshift of each part, and get detailed meaurements of movement of stars and gas within the galaxy
SDSS Mapping Nearby Galaxies at APO (MaNGA) http://www.sdss.org/surveys/manga/ "Unlike previous SDSS surveys which measured spectra only at the centers of target galaxies, MaNGA bundles sets of optical fibers into tightly-packed arrays, enabling spectral measurements across the face of each of ~10,000 nearby galaxies. MaNGA’s goal is to understand the “life cycle” of present day galaxies from imprinted clues of their birth and assembly, through their ongoing growth via star formation and merging, to their death from quenching at late times."
Talk: Mapping Movement inside nearby galaxies with MaNGA https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001ynm Explanation of MaNGA?
Blog: Fibers and Voorwerpjes November 18, 2014 by billkeel http://blog.galaxyzoo.org/2014/11/18/fibers-and-voorwerpjes/ "the Integral-Field Unit (IFU)..use fiber optics to rearrange light from the object,.. revealing multiple clouds of gas moving within a total span of almost 1000 km/s.Elsewhere, the European Southern Observatory has commissioned an enormous IFU, and the Sloan team has rebuilt their fiber bundles so that each one now makes multiple IFUs which can be placed on many galaxies at a time – this par of the Sloan survey extension in known as MANGA. Then there is the Spanish-led CALIFA project for hundreds of galaxies, which has publicly released data for their first two subsets. Then there are SAURON (whose data ca be tamed in software by GANDALF) and the upgrade of SCORPIO-2 and more… "
A galaxy within a galaxyLarge-scale maps of the (a) reconstructed surface brightness, (b) mean stellar velocity, (c) stellar velocity dispersion, (d) Mg_b linestrength, and (e) H_beta linestrength for NGC4365. The maps are based on two partially overlapping SAURON pointings. Notice how the two kinematically-decoupled components have identical stellar populations.
A paper describing this work has appeared in Davies et al. (2001)..===============
Talk: Two different spectra for the same galaxy in DR9 https://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0002j7h?page=1&comment_id=5942d90661ec36008d0005d8 overlapping galaxies seen in spectrum
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Budgieye
moderator
7.2 Redshift z and photometric Z (PhotoZ) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
Talk: Astrophysics for Galaxy Zoo Talk - redshift z PhotoZ spectra emissions AGN by Budgieye http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp If you want to learn more about galaxies, here are links to useful information from Talk, Forum and the SDSS website and other places
PAGE 1 see below for finding information in Talk Galaxy Zoo http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp
PAGE 2 Galaxy Redshift Chart http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000ulp?page=2
PAGE 3 Spectra guide for Galaxy Zoo Talk http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp?page=3&comment_id=53fef2ee3d5a77490c0001b6 If you want to learn more about galaxies, here are links to useful information from Talk, Forum and the SDSS website and other places
Forum: Re: z and velocity of recession by Edd http://www.galaxyzooforum.org/index.php?topic=273059.msg217557#msg217557 "Be wary of simply using the relativistic formula - it's not right, not for this universe. Be wary of lots of things in fact. It's a complicated and non-trivial issue (and even a source of argument about whether it's a Doppler shift at all - an argument I refuse to give an unqualified yes or no to!).
Andy: z is dimensionless, but you can use the speed of light to provide the factor for it, basically.
The simple answer is that you almost certainly don't want to calculate the recession velocity. It's not usually a useful quantity and you'll only tie yourself in knots trying to think about it. The longer answer is that you have to define precisely what you mean by velocity (and this is not easy in cosmological contexts) and then you go and work out from a cosmological model what exactly your answer will be.
Further reading:
http://cosmicvariance.com/2008/10/06/does-space-expand/
http://www.roe.ac.uk/~jap/book/expandspace.pdf
http://arxiv.org/pdf/0808.1081
"
Talk: Redshift - Am I getting this right? http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ00019ww?page=1&comment_id=54e91aa3697526269a0002bd
Forum: Redshift of Hubble galaxies, with spectra by Budgieye http://www.galaxyzooforum.org/index.php?topic=277967.0 Hubble images are in 2 colours: blue and red
4500-7078Å is represented by blue, and 7078-9500Å is represented by red
The two colours can mix together to make white.
The spectral charts are taken with a ground based telescope.
The spectra are in the range of 6500Å to 9200Å, which is shorter than the SDSS charts.
The forum is locked and the information in the guide cannot be updated.Publication: Galaxy Zoo Morphology and Photometric Redshifts in the Sloan Digital Sky Survey Way, M. J. http://adsabs.harvard.edu/abs/2011ApJ...734L...9W results of classifying spirals and ellipticals can help teach machines to do the same.
redstretchingForum: The red peaks fall off the right side of the graph faster. http://www.galaxyzooforum.org/index.php?topic=280662.msg627501#msg627501
Forum: Sunday 3rd March 2013: what broadens spectral lines? by Alice http://www.galaxyzooforum.org/index.php?topic=280662.msg627603#msg627603"Now, let's say we have two emitted photons, one of 500 and one of 600nm. If you multiply their wavelengths by 1.1, the longer wavelength one is stretched more than the shorter-wavelength one. As NGC3314 put it: "All wavelengths are stretched by redshifting by the same fraction (1+z). So redstretching might be a better term." "
How far away is the galaxy? http://www.wolframalpha.com/input/?i=redshift+z%3D0.03&a=FSelect_**LookbackTimeFromRedshift--
Forum thread: Nearby galaxies z less than 0.004 http://www.galaxyzooforum.org/index.php?topic=7811.0Forum thread: Even closer? z less than 0.000 The blueshift galaxy thread http://www.galaxyzooforum.org/index.php?topic=279890.0
Forum thread: VERY nearby galaxies: z less than 0.001 http://www.galaxyzooforum.org/index.php?topic=278513.0
Forum thread: Most Distant Spirals http://www.galaxyzooforum.org/index.php?topic=277905.0 Hubble
Forum: Wednesday, 26th September, 2012 Does Controversy Sell? Let's See: Arp Was Right! by JeanTate http://www.galaxyzooforum.org/index.php?topic=280426.0 "the biggest controversy in extra-galactic astronomy is (or was) that the redshifts of quasars and (mostly distant) galaxies contain an "intrinsic" component, one that's due to something about the source, not the expansion of the universe"
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Budgieye
moderator
7.3 Measure distance, size https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
How far away is that galaxy? Use this calculator
Here is an example of measuring distance
In
https://www.wolframalpha.com/input/?i=redshift+z%3D0.5&assumption="FSelect"+->+{{"LookbackTimeFromRedshift"}}go into the calculation area, and change 0.5 to the value you want eg. 0.3
Glare at Dopppler redshift
Click on cosmological redshift , and press return
and look lower down and
you should getCosmological results:More
time ago (lookback time) | 3.41 billion years
time since big bang | 10.3 billion years
distance (comoving) | 3.89 billion ly (light years)
1190 Mpc (megaparsecs)
3.68×10^22 km (kilometers)
2.29×10^22 milesfraction of total observable radius | 0.0833
scale factor | 0.769 × current value
epoch | dark energy dominated, post-recombination
radiation temperature | 3.54 K (kelvins)
(based on 5-year WMAP data and Lambda-CDM model; current universe age: 13.7 billion years)https://www.wolframalpha.com/input/?i=redshift+z%3D0.3&assumption="FSelect"+->+{{"LookbackTimeFromRedshift"}}
taken from
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/974533?comment=1616328&page=1
Forum: Wednesday 29th April 2009: How far is that? by waveney http://www.galaxyzooforum.org/index.php?topic=275099.msg313543#msg313543 images from asterods to distant galaxies
Forum: Friday 8th January, 2010. Two galaxies, the same size? by Budgieye http://www.galaxyzooforum.org/index.php?topic=277034.msg416504#msg416504 measure the size and distance of two galaxies
Forum: Thurs Sept 27, 2012 Measuring the size of distant galaxies by Budgieye http://www.galaxyzooforum.org/index.php?topic=280432.0 using guesswork, wolframalpha and others.
Forum: Finding redshift and spectra for Hubble galaxies in various databases http://www.galaxyzooforum.org/index.php?topic=277683.msg609794#msg609794
1....... AEGIS DEEP2 http://tkserver.keck.hawaii.edu/egs/dataAccess/query/egs_query_deep2.php (little box to put number into is hard to see)
2.......I think these are SDSS numbers ? I think
3..... SDSS objects from stripe82 (and stripe 84?)
5....... use GOODS-N http://www.astro.caltech.edu/~drlaw/GOODS/
9....... use Chandra Deep Field South http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/253 use the last 5 digits only in the recno box, has estimates of redshift
Talk: distant arcs and the Einstein radius http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0001f7cby vrooje ADMIN, SCIENTIST The Universe is smaller at higher redshift, and because of this the way the apparent size of a galaxy changes as a function of redshift is a little non-intuitive. Galaxies of the same intrinsic physical size appear smallest at about redshift 1-2, and then start to appear larger as you go to really high redshift. It's a little jargony but the Wikipedia description of angular diameter distance may help.
website: Wolfram Alpha computational knowledge enginehttps://www.wolframalpha.com/
http://www.wolframalpha.com/input/?i=cosmological+redshift&a=*C.cosmological+redshift-_*Formula- (click on cosmological redshift)
Parsec https://www.wolframalpha.com/input/?i=parsec
Redshift https://www.wolframalpha.com/input/?i=redshift
How far away is the galaxy? http://www.wolframalpha.com/input/?i=redshift+z%3D0.03&a=FSelect_**LookbackTimeFromRedshift--
Arcseconds https://www.wolframalpha.com/input/?i=arcsec
website: Ned Wright’s Cosmology Calculator http://www.astro.ucla.edu/~wright/CosmoCalc.html
website: The Distance Scale of the Universe by NED Wright http://www.atlasoftheuniverse.com/redshift.html Explains the mind boggling concepts about expansion of the Universe
website: Paper-and-pencil cosmological calculator by Sergey V. Pilipenko https://arxiv.org/abs/1303.5961 You can easily look up distance to your galaxy using these tables.
Talk: Alice and the Ellipticals, Galaxy Zoo to the Rescue! by Alice June 2013) by Alice http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ00002kk "there is a rather simple pattern in their properties. From an analysis of the data in photometric images - such as those we zooites were served up to classify - two key properties are highly correlated, the size (as measured quantitatively by the effective radius) and the central brightness (as measured by the mean surface brightness within the effective radius)."
Forum: Dating SDSS Images by waveney http://www.galaxyzooforum.org/index.php?topic=272749.0
Sometimes it is useful to know the date that an SDSS image was created, for example, to check whether the current image could contain a supernova which exploded in a particular year. This procedure should work for all images.
From the SkyServer Object Explorer page for the object in question, click on the “Field” link on the left under the “PhotoObj” heading. Scroll down to the “mjd_u” label and note down the value in the right-hand field. This is in MJD format (Modified Julian Date) and in scientific notation. Convert the value to standard decimal and add 2400000.5 to the value. As an example, if the original value is “5.26674166E4” it would become “52667.4166” then “2452667.9166”. Now enter this value into the “Julian Date” field on the following web site and click the button to get your date.Or find the Gregorian date in this link: Julian Date Converter http://pdc.ro.nu/mjd.cgi
Forum: Proper motion of stars Mukund Vedapudi http://www.galaxyzooforum.org/index.php?topic=276167.msg371776#msg371776Mukund Vedapudi
Modern measurement of proper motions:* Compare images of the sky taken 20 to 50 years apart. * Measure how much the stars have moved relative to distant background objects (usually galaxies or quasars).Example: Consider a star with a proper motion of 0.1 arcsec/year:
* After 1 year: star has moved 0.1 arcsec * After 10 years: star has moved 0.1x10 = 1 arcsec * After 100 years: star has moved 0.1x100 = 10 arcsec
APOD website: A Redshift Lookup Table for our Universe http://apod.nasa.gov/apod/ap130408.html
Talk: distant arcs and the Einstein radius http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0001f7c?page=1&comment_id=55479fdea77a1b1f33000a6e "The Universe is smaller at higher redshift, and because of this the way the apparent size of a galaxy changes as a function of redshift is a little non-intuitive. Galaxies of the same intrinsic physical size appear smallest at about redshift 1-2, and then start to appear larger as you go to really high redshift."
Forum: Thursday 25th October, 2012: TIME Ancient Hindu metrics of time Mukund Vedapudi http://www.galaxyzooforum.org/index.php?topic=280474.0
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Budgieye
moderator
7.4 Using NED (NASA Extra-galactic Database) https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
Talk: #1 How do I : Find out more information about the galaxy I have classified? by Capella05 MODERATOR http://talk.galaxyzoo.org/#/boards/BGZ0000005/discussions/DGZ0000lv2
Forum OOTD: Tuesday, August 20th, 2013: One among trillions by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281104.0 guess how many galaxies a
Google scholar http://scholar.google.co.uk/
NED Database FAQ https://ned.ipac.caltech.edu/help/faq5.html
List of Objects in NED
Here is the current list of object types used in NED, listed alphabetically (objects within the Milky Way Galaxy have their types preceded by an exclamation point "!"):
- Star or Point Source
** Double star
*Ass Stellar association
*Cl Star cluster
AbLS Absorption line system
Blue* Blue star
C* Carbon star
EmLS Emission line source
EmObj Emission object
exG* Extragalactic star (not a member of an identified galaxy)
Flare* Flare star
G Galaxy
GammaS Gamma ray source
GClstr Cluster of galaxies
GGroup Group of galaxies
GPair Galaxy pair
GTrpl Galaxy triple
G_Lens Lensed image of a galaxy
HII HII region
IrS Infrared source
MCld Molecular cloud
Neb Nebula
Nova Nova
Other Other classification (e.g. comet; plate defect)
PN Planetary nebula
PofG Part of galaxy
Psr Pulsar
QGroup Group of QSOs
QSO Quasi-stellar object
Q_Lens Lensed image of a QSO
RadioS Radio source
Red* Red star
RfN Reflection nebula
SN Supernova
SNR Supernova remnant
UvES Ultraviolet excess source
UvS Ultraviolet source
V* Variable star
VisS Visual source
WD* White dwarf
WR* Wolf-Rayet star
XrayS X-ray source
!* Galactic star
!** Galactic double star
!*Ass Galactic star association
!*Cl Galactic Star cluster
!Blue* Galactic blue star
!C* Galactic carbon star
!EmObj Galactic emission line object
!Flar* Galactic flare star
!HII Galactic HII region
!MCld Galactic molecular cloud
!Neb Galactic nebula
!Nova Galactic nova
!PN Galactic planetary nebula
!Psr Galactic pulsar
!RfN Galactic reflection nebul
a
!Red* Galactic red star!SN Galactic supernova
!SNR Galactic supernova remnant
!V* Galactic variable star
!WD* Galactic white dwarf
!WR* Galactic Wolf-Rayet star
https://ned.ipac.caltech.edu/?q=help/srcnom/list-objecttypes&popup=1
NED Frequently Asked Questions -- NED Database
https://ned.ipac.caltech.edu/help/faq5.html#5jPosted
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Budgieye
moderator
7.5 Using SIMBAD https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
SIMBAD is a database for stars, but bright galaxies and quasars are on it too. You can check your galaxy on SIMBAD as you go through SkyServer. Always check that SIMBAD is showing you the same object by checking the co-ordinates ra and dec. If SIMBAD doesn't find any thing at the location you ask, it takes you to the nearest object it has on the database. If it says something like "see distance to center is 50.98." you are looking at something far away from your original. It should say distance to the center is 2 or 1 or less arcsec.
https://blog.backyardworlds.org/2017/03/01/getting-started-with-simbad/
https://blog.backyardworlds.org/2017/02/18/an-introduction-to-vizier/
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Budgieye
moderator
7.6 Catalogs of Galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
Talk: One of the most powerful features of Talk is the ability to create collections 😃 http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0000vv1 "Instead of creating dozens of separate threads for the various catalogues / objects - we are going to maintain a index of collections. For each collection that we index, we will include a definition and examples - just so you know what we are looking for! Be sure to click on 'info' for more information on the relevant collection. All you need to do is #hashtag the image with the respective tag, and the collection will get continuously built 😃 We are also looking for volunteers to manage the collections - in other words to remove the images that do not conform. If you are interested, and have a few classification under your belt - please contact me!"
NGC objects | Info | | CGZL00003q | #NGC by vrooje ADMIN, SCIENTIST
Zooniverse Galaxy of the Week (ZGOTW) | Info | CGZL00003t | #ZGOTW
Gravitational lensing | Info | CGZL00000h | #lens
UGC catalogue | Info | CGZL00003w | #UGC by Capella05 MODERATOR
Asteroids! | Info | CGZL00003x | #asteroid
Markaryan objects | Info | CGZL00003y | #MRK
X-Shaped bulges | Info | CGZL000040 | #x-shaped
Polar Rings | Info | CGZL000047 | #polar
Comets! | Info | CGZL00004c | #comet
Nebula | Info | CGZL00004m | #nebula
If you would like a collection added to the 'Index', please PM @Capella05 - you can post at the end of this thread, but it will eventually be subsumed by the most recent collection 😃 Thanks! GZ Talk Team.
Image Gallery of Large Galaxies (the IC , NGC and UGC galaxies), with DECaLS using the Blanco-4m telescope, legacy survey
http://portal.nersc.gov/project/cosmo/data/legacysurvey/dr2/gallery/
Forum: P U B L I S H E D C A T A L O G U E S IN THE FORUM http://www.galaxyzooforum.org/index.php?topic=279855.0
NGC New General Catalogue / IC Objects
http://ngcicproject.org/dss/dss_ngc.asp
Forum thread: NGC catalogue LIST ** by ctlgprjct http://www.galaxyzooforum.org/index.php?topic=280028.0** Where to find several thousand "Welcome to the Galaxy Zoo's NGC-objects-in-numerical-order-list, a thread like no other. Below you will find an image of every NGC object that is in the Sloan Digital Sky Survey (SDSS) footprint, 4.297 of them. This thread also includes non-SDSS images of about 25 percent of those galaxies that are outside the SDSS footprint, as well as both SDSS and non-SDSS images of several dozen galaxies."
Forum: NGC Catalogue http://www.galaxyzooforum.org/index.php?topic=273743.0 The New General Catalogue
Forum: Wednesday, 6th February, 2013: Celebrating a Zooite Milestone by JeanTate http://www.galaxyzooforum.org/index.php?topic=280625.0 "The NGC catalogue LIST already has over 100,000 Views, even though it's not yet a year old, and is not a Stickied thread 😮; how many people, from all over the world, have typed an NGC object's name into a search engine, clicked on a link that took them here, to our very own Galaxy Zoo forum (i.e. a post in the NGC LIST thread) ... and suddenly discovered a new world?
Forum: IC catalogue by AlexandredOr http://www.galaxyzooforum.org/index.php?topic=275898.1740
Forum: IC catalogue Index Catalog http://www.galaxyzooforum.org/index.php?topic=275898.0
Forum: The complete IC catalog (not completed because forum was shut down) by planetaryscience http://www.galaxyzooforum.org/index.php?topic=281588.0 matching up #IC IC means Index Catalog, it is a list of fuzzy things done in 1880s and includes galaxies, nebula and star cluster.
ARP Atlas of Peculiar Galaxies
Forum: The ARP Peculiar Galaxy Atlas http://www.galaxyzooforum.org/index.php?topic=10300.0 "The Atlas of Peculiar Galaxies is a catalog of peculiar galaxies produced by Halton Arp. A total of 338 galaxies are presented in the atlas, which was originally published in 1966 by the California Institute of Technology."
wiki http://en.wikipedia.org/wiki/Atlas_of_Peculiar_Galaxies
ATLAS OF PECULIAR GALAXIES, CIT, 1966 http://ned.ipac.caltech.edu/level5/Arp/Arp_contents.html has detailed B&W images in reversed colours.
PGC - Principal Galaxy Catalog (PGC) 2003 - a million of the closest galaxies, with HYPERLEDA and LEDA framework http://heasarc.nasa.gov/W3Browse/all/pgc2003.html http://heasarc.nasa.gov/W3Browse/all/pgc2003.html Images from Skyview
HYPERLEDA and LEDA The physics and evolution of galaxies. uses the virtual observatory, a major interest for education and popularization of astronomy. http://leda.univ-lyon1.fr/intro.html
CDS Catalogues. B. Copies of external databases, regularly updated.http://cdsarc.u-strasbg.fr/cats/B.htx
Catalogues and files available at CDS http://cdsarc.u-strasbg.fr/cats/cats.html
Forum: ABELL catalogue http://www.galaxyzooforum.org/index.php?topic=278412.0 Clusters of galaxies.
Forum: Vorontsov-Velyaminov Interacting Galaxies http://www.galaxyzooforum.org/index.php?topic=279218.0
Forum: AGC catalogue http://www.galaxyzooforum.org/index.php?topic=279945.0 Arecibo General Catalog (radio galaxies)
Forum: UGC Catalog http://www.galaxyzooforum.org/index.php?topic=275993.0
Forum: The Abell catalogue http://www.galaxyzooforum.org/index.php?topic=278412.0 galaxy clusters.
Forum: AGC catalogue http://www.galaxyzooforum.org/index.php?topic=279945.0 AGC catalogue aka Arecibo General Catalog and ALFALFA ... 30,000 extragalactic HI line sources out to z~0.06, and its catalog will be especially useful in synergy with wide area surveys conducted at other wavelengths.
Forum: Another great Markarian, we need a thread for these. http://www.galaxyzooforum.org/index.php?topic=10047.0 "NGC2214 says "The Markarian catalog was produced by Benyamin Markarian and colleagues (I claim today's award for obviousness) at the Byurakan Observatory in Armenia. It included objects which were unusually bright in the near-ultraviolet, as seen in objective-prism photographs from their Schmidt telescope. Thus the catalog of 1500 objects includes Seyfert galaxies (the first large sample of these), starbursts, star-forming knots in bright galaxies, and BL Lacertae objects. I have a reformatted version of the final catalog provided by once-Soviet colleagues here. Since the Byurakan astronomers continued similar work with a different photographic setup in the Second Byrurkan Survey or SBS, the original Markarian project is now sometimes known as the FBS."
Forum: 2MASX Catalog http://www.galaxyzooforum.org/index.php?topic=278490.0 Galaxy that emit infrared light The 2MASS All-Sky Data Release includes ... and 1.6 million objects identified as extended in an Extended Source Catalog.
http://cdsbib.u-strasbg.fr/cgi-bin/cdsbib?2006AJ....131.1163SForum: The MAILYAN catalogue http://www.galaxyzooforum.org/index.php?topic=280055.0 dwarf galaxies
Forum: IRAS catalogue http://www.galaxyzooforum.org/index.php?topic=279896.0
Forum: Vorontsov-Velyaminov Interacting Galaxies thread http://www.galaxyzooforum.org/index.php?topic=279218.0
Forum: ESO Catalogue thread (European Southern Observatory) galaxies http://www.galaxyzooforum.org/index.php?topic=278377.0 were measured from the Palomar Sky Survey Prints, many are Markarian
Forum: ARK Catalogue were measured from the Palomar Sky Survey Prints
Forum thread: New HCG LIST by Tony Wei http://www.galaxyzooforum.org/index.php?topic=281574.0 Hickson Compact Group catalog
Forum thread: Messier objects by Karma http://www.galaxyzooforum.org/index.php?topic=274553.0 Galaxies visible in small telescopes also http://www.galaxyzooforum.org/index.php?topic=280086.0
Lists started in Galaxy Zoo Forum
2MASX (Catalogue) Started by RandyC ABELL(catalogue) Started by AlexandredOr AGC(catalogue) Started by egalaxy Another great Markarian, we need a thread for these Started by helioprogenus ARK (catalogue) Started by Lightbulb500 ARP Peculiar Galaxy Atlas Started by Rick Nowell Caldwell (catalogue) Started by egalaxy (David Dunlap Observatory)DDO (catalogue) Started by AlexandredOr (European Southern Observatory)ESO (catalogue) Started by AlexandredOr (Flat Galaxy Catalogue) FGC (Catalogue) Started by elizabeth (Hickson Compact Groups)HCG (catalogue) Started by Rick Nowell (Index catalogue)IC (catalogue) Started by AlexandredOr (Infrared Astronomical Satellite)IRAS (catalogue) Started by egalaxy (Kisp Ultraviolet Galaxy) KUG (Catalogue) Started by RandyC (Lynd's Dark Nebulae)LDN (catalogue) Started by egalaxy (Morphological catalogue of galaxies)MCG (Catalogue) started by RandyC (Messier objects)M(catalogue) Started by Karma MAILYAN(catalogue) Started by AlexandredOr (New General Catalogue)NGC (Catalogue) Started by dylhomme (Principle galaxy catalogue.) PGC (catalogue) Started by egalaxy SDSS OPEN CLUSTERS INDEX -- Which one have I found? Started by jules Sharpless (catalogue) Started by egalaxy (Uppsala General Catalogue of Galaxies)UGC (Catalogue) Started by elizabeth (Virgo Cluster Catalogue)VCC (catalogue) Started by egalaxy (Vorontsov-Velyaminov Interacting Galaxies) VV (catalogue) Started by RandyC (MCG: Morphological Catalogue of GalaxiesVorontsov-Velyaminov and Arhipova, Moscow State University, 1962-1968, 4 volumes. Contains 29,000 objects. Also referred to as VV.)
Zwicky galaxies(ZW) Started by milk_n_cookiesPosted
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Budgieye
moderator
7.7 data analysis, FITS images https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
Google scholar [search engine] http://scholar.google.co.uk/ Find research publications.
Note: these instructions are for Old Talk. In 1918, we are using new talk.
Talk: Making images smaller in Talk http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0001thi?page=9&comment_id=56b5eb9cf724d76a43001d51When adding an image, just add '=300x' or '=300x300' directly behind jpg
Or for example '=150x' for thumbnails, using 150x150 might skew a non-square image though
or
IMG SRC="" WIDTH="600" (enclose in pointy brackets which look like less than or more than symbols, paste image address in between quotes, change size to suit)
Forum: Using the query box to make arrows to point to objects Friday July 2, 2010 What is the mysterious white box? by Budgieye http://www.galaxyzooforum.org/index.php?topic=277957.msg475577#msg475577
Modified Julian Dates (mjd)
- giving dates as numbers instead of year, month, date
mjd_u 51259.38963377
mjd_g 51259.39129242
mjd_r 51259.38797511
mjd_i 51259.38880444
mjd_z 51259.39046309mjd_u 5.12593896E4
mjd_g 5.12593913E4
mjd_r 5.1259388E4
mjd_i 5.12593888E4
mjd_z 5.12593905E4Modified Julian date converter http://pdc.ro.nu/mjd.cgi , use the Gregorian date, because that is the calendar that we now use.
Using FITS files
Talk: Using FITS files by KWillett ADMIN, SCIENTIST The raw images are stored in a format known as FITS, which stands for "Flexible Image Transport System". It's been the standard in astronomy for many years, although not used very commonly in other fields. Unlike formats like JPEG or PNG, FITS both preserves the measured values in the image (which we need to make accurate measurements of brightness) and can include metadata about the observation as part of the image. The most common software for viewing FITS images is called DS9. It's free to download, and there are versions for Windows, Mac, and Linux. There are other ways to view and interact with FITS files, including common packages for IDL and Python. So - how do you get FITS images for a DECaLS subject? You can do it from the web browser. Let's ... http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001kaa
DECaLS - new images and science by KWillett ADMIN, SCIENTIST (FITS files explanation half way down the page) http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001kaa
"OK - many users have raised interesting questions about the images that are coming up, often with features that are obvious only in one or more bands (remember that the color images you're classifying are a combination of three different filters). Since the GZ Examine tool doesn't work on the current images, at least for the moment, I wanted to show how you can download the raw images yourself.The raw images are stored in a format known as FITS, which stands for "Flexible Image Transport System". It's been the standard in astronomy for many years, although not used very commonly in other fields. Unlike formats like JPEG or PNG, FITS both preserves the measured values in the image (which we need to make accurate measurements of brightness) and can include metadata about the observation as part of the image.
The most common software for viewing FITS images is called DS9. It's free to download, and there are versions for Windows, Mac, and Linux. There are other ways to view and interact with FITS files, including common packages for IDL and Python.
So - how do you get FITS images for a DECaLS subject? You can do it from the web browser. Let's use AGZ000atp8 as an example. From its page on Talk, I can find the coordinates for this galaxy, which are RA: 318.35963, DEC: 0.97547. Now I'm going to insert those coordinates into the following URL in my web browser:
You can see in the middle of that URL that I've set the RA and dec coordinates for this particular galaxy; you can pick any point on the sky and just substitute those values in. The other two parameters here are pixscale, which is the physical scale of the image in arcsec/pixel, and size, which gives you the number of pixels per side in the square image you're going to download. You can also change either of those values if you want to change the image size or scale. So this URL is going to download a 512x512 pixel FITS image for a galaxy centered at RA: 318.35963, DEC: 0.97547, at a scale of 0.2 arcsec/pixel (which means that the image will be 102 arcsec, or 1.7 arcmin in size).
That URL will download all three individual filters as a single file; DS9 can load it as a "data cube", where each plane of the data corresponds to a different filter. That's useful since you can toggle back and forth between the different filters, or even play it as a movie.
If you just want to download a single filter - say the image in the r-band, for instance, just add it to the end of the URL:
Remember, the three filters you have available are g, r, and z.
This is a bit more work, but will give you the same data that are used to make the color composites. I hope some of you are interested in using this and exploring the data further, especially for objects where you see single-color features that might only come from one band.
Yeah - DS9 was never designed with newbies in mind, and better tutorials would be a fantastic resource. Not something that the astro community has managed to develop, though, to my knowledge.
Here's one that astrobites put out: http://astrobites.org/2011/03/09/how-to-use-sao-ds9-to-examine-astronomical-images/
And this is a good tutorial on IRAF, which has some DS9 stuff in it, but it's lacking in screenshots. http://www.twilightlandscapes.com/IRAFtutorial/"
SAO webite: SAOImage DS9 http://ds9.si.edu/site/Home.html "SAOImage DS9 is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps. It provides for easy communication with external analysis tasks and is highly configurable and extensible via XPA and SAMP."
Forum: FITS Files (Flexible Image Transport System) by waveney
FITS is a standard method for storing astronomical data and is used for the transport, analysis, and archival storage of scientific data sets. FITS is the most commonly used digital file format used in astronomy.
See the forum link below for a tutorial on using the FITS file to look at SDSS images.
Links: FITS Home Page http://fits.gsfc.nasa.gov/ Wikipedia FITS Entry http://en.wikipedia.org/wiki/FITS
Pat’s Tutorial on using FITS Sunday April 5th 2009: DS9 and Platterpillars http://www.galaxyzooforum.org/index.php?topic=274805.0website: Aladin Desktop is the main application of the Aladin Sky Atlas suite. http://aladin.u-strasbg.fr/java/nph-aladin.pl?frame=downloading. It enables easy use of FITS files
Talk: Shared learning: Statistics, Data Mining, and Machine Learning in Astronomy by Jean Tate http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000v7s?page=2&comment_id=5429b35f077a5b27e3000610
Python,"Statistics, Data Mining and Machine Learning in Astronomy" by Ivezic, Connolly, VanderPlas and Gray (2014, Princeton Univ. Press, ISBN 978-0-691-15168-7) reviewed In Journal of the British Astronomical Association April 2014
Forum: Making Science Papers Accessible to the Layman: Who can Help? http://www.galaxyzooforum.org/index.php?topic=276198.msg372515#msg372515 what are scientific papers
Blog: Using Space Warps to Discover and Weigh Galaxies by Brooke Simmons 2013 http://blog.galaxyzoo.org/2013/05/14/space-warps-discover-weigh-galaxies/ "Co-lens-experts Phil Marshall and Aprajita Verma joined us during this hangout to describe how they use gravitational lenses to weigh galaxies
Blog: How to Navigate the Astro Literature, Part 1 November 4, 2011 by Kevin http://blog.galaxyzoo.org/2011/11/04/how-to-navigate-the-astro-literature-part-1/ Using NASA ADS (Astrophysics Data System) http://adsabs.harvard.edu/abstract_service.html to find abstracts and papers
Blog: Can you feel a draft? February 15, 2008 by The Zooniverse Steven http://blog.galaxyzoo.org/2008/02/15/can-you-feel-a-draft/ the main business of writing the text and putting together the figures is done by one person, the lead author. "
Blog; What happens next… Peer Review http://blog.galaxyzoo.org/2008/03/28/what-happens-next-peer-review/ "Good scientists spend most of their time arguing against the effects they see in their own data, to avoid falling into traps of seeing only what they expect to see...The editor of this journal will now select an anonymous referee who can comment on the scientific and technical merits of the paper." Link to: How to Write Like a Scientist By Adam Ruben March 23, 2012 http://sciencecareers.sciencemag.org/career_magazine/previous_issues/articles/2012_03_23/caredit.a1200033 amusing
Blog: The Bias Study Dec 2007 http://blog.galaxyzoo.org/2007/12/31/the-bias-study/ technical computer analysis
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Budgieye
moderator
7.8 computer recogition of galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
A transient search using combined human and machine classifications Darryl E. Wright et al https://arxiv.org/abs/1707.05223?t=1&cn=ZmxleGlibGVfcmVjc18y&iid=00f57649b3cf40a7a3b0e05c2c0205dc&uid=114131259&nid=244+272699400
Blog: New paper: Galaxy Zoo and machine learning March 31, 2015 by Kyle Willett (Sander Dieleman) http://blog.galaxyzoo.org/2015/03/31/new-paper-galaxy-zoo-and-machine-learning/" we ran an online competition through the Kaggle data platform called “The Galaxy Challenge”. The premise was fairly simple – we used the classifications provided by citizen scientists for the Galaxy Zoo 2 project and challenged computer scientists to write an algorithm to match those ...One of the innovative techniques in Sander’s work has been to use a model that makes use of the symmetry in the galaxy images.classifications as closely as possible...."
Blog: Machine Learning & Supernovae August 2012 Joey Richards http://blog.galaxyzoo.org/2012/08/03/machine-learning-supernovae/ "The manual vetting of tens of thousands of supernova candidates by the Galaxy Zoo community has provided PTF an invaluable data set which could be used to accurately train such a ML classifier."
Blog: Galaxy Zoo and Zooniverse review article posted today on ArXiv May 2, 2011 by Lucy http://blog.galaxyzoo.org/2011/05/02/galaxy-zoo-and-zooniverse-review-article-posted-today-on-arxiv/ "a related endeavor, called Data Mining, is applying these algorithms to large quantities of data to extract patterns or knowledge. "" By the time we reach the end of this decade when the Large Synoptic Survey Telescope (LSST) is online, the data will be coming in at tens of Terabytes a night. "
Blog: Galaxy Zoo: Mergers – A personal perspective November 26, 2009 by John http://blog.galaxyzoo.org/2009/11/26/galaxy-zoo-mergers-a-personal-perspective/ "The idea of using volunteers to help us happened a few years ago. It was crazy and impractical to imagine volunteers helping out with a project like this. Even so, a group of us proposed to do. ..With your help, we can create the models we need to understand the histories of hundreds of galaxy collisions. These models will be more reliable than any a single scientist could create. ..by carefully analyzing your inputs, we eventually hope to train the computers to do thousands of more models. This kind of man/machine partnership is being planned for a number of future data projects, where computers need help learning how to be scientists. ...However, in return, we will also never make you do busy work that a machine can do."
Blog: Machine learning paper now available http://blog.galaxyzoo.org/2009/08/17/machine-learning-paper-now-available/ Just a quick note that Manda’s submitted paper on machine learning
Blog: Man vs Machine? August 2009 http://blog.galaxyzoo.org/2009/08/21/man-vs-machine/ "it important that we don’t waste your time by having you do tasks that computers are perfectly capable of completing. ...New surveys, larger, deeper and more ambitious that the Sloan are being planned; one of the largest, the Large Synoptic Survey Telescope, is estimated to produce 30 TB of data per night....That amount of data will overwhelm even the largest Zoo. We’ll need to automatically classify most of it – and more importantly use machines to decide which objects are interesting enough (or confusing enough!) to be passed to humans for more careful attention"
Blog: Latest Galaxy Zoo paper submitted! August 2009 by Manda Banerji http://blog.galaxyzoo.org/2009/08/05/latest-galaxy-zoo-paper-submitted/ " using ~10% of the sample of objects that you have classified to train an artificial neural network, we are able to reproduce your classifications for the rest of the objects to an accuracy of greater than 90% provided we choose our neural network input parameters carefully."
Publication: The Milky Way Project: Leveraging Citizen Science and Machine Learning to Detect Interstellar Bubbles, Beaumont+ 2014. http://arxiv.org/abs/1406.2692 Brut is based on the Random Forest algorithm, and uses bubbles identified by >35,000 citizen scientists from the Milky Way Project to discover the identifying characteristics of bubbles in images from the Spitzer Space Telescope.
Publication: Dynamic Bayesian Combination of Multiple Imperfect Classifiers by Simpson, Edwin; Roberts, Stephen; Psorakis, Ioannis; Smith, Arfon http://adsabs.harvard.edu/abs/2012arXiv1206.1831S "community structure of the decision makers, based on their inferred decision making strategies, and show that natural groupings are formed."
Paper: Galaxy Zoo: reproducing galaxy morphologies via machine learning, Banerji+ 2010. http://arxiv.org/abs/0908.2033 " it is promising to use machine- learning algorithms to perform morphological classification for the next generation of wide-field imaging surveys and that the Galaxy Zoo catalogue provides an invaluable training set for such purposes."
Paper: Computer-generated visual morphology catalog of ~3,000,000 SDSS galaxies Evan Kuminski, Lior Shamir http://arxiv.org/abs/1602.06854
The Pan-STARRS Moving Object Processing System http://iopscience.iop.org/article/10.1086/670337#artAbst has images of near-earth objects and artifacts.
Posted
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Budgieye
moderator
7.9 Education and Outreach, Magazines https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
Zooniverse website: ZooTeach http://www.zooteach.org/ Where educators can share high quality lesson plans & resources that complement the Zooniverse citizen science projects, science, mathematics, humanities, art
Alice's MSc Astrophysics reports http://www.galaxyzooforum.org/index.php?topic=279479.0
Waveneys PhD Blog http://www.galaxyzooforum.org/index.php?topic=278798.0
Blog: Off to Queen Mary University July 20, 2011 by Alice http://blog.galaxyzoo.org/2011/07/20/off-to-queen-mary/
Blog: Pretty galaxies on the BBC Big Screens March 14, 2011 by karenlmasters http://blog.galaxyzoo.org/2011/03/14/pretty-galaxies-on-the-bbc-big-screens/ "As part of National Science and Engineering Week, 11-20th March 2011 in the UK I was involved in the production of a series of 5 short videos called “From the Earth to the Edge of the Universe” which were made as a collaboration between Creative Technologies and the Institute of Cosmology and Gravitation at the University of Portsmouth. They are going on the BBC Big Screens, apparently right across the UK and continuing up until the 2012 Olympics."
Blog: A Comic Voorwerp August 20, 2010 by Pamela, Hanny, Bill, Kelly, Elea and Chris http://blog.galaxyzoo.org/2010/08/20/a-comic-voorwerp/
Blog: Galaxy Zoo gets a mention on The Archers [British radio drama series] October 6, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/10/06/galaxy-zoo-gets-a-mention-on-the-archers/ "“People all over the world, categorizing galaxies… It’s rather, addicting, actually."
Blog: A New Zoo Adventure in Learning March 2009 http://blog.galaxyzoo.org/2009/03/17/a-new-zoo-adventure-in-learning/ So, whether you’re using the Zoo for yourself or in your classroom, we’re asking everyone to share their ideas with us. Hanny is working to go through the forum to find the things you’ve already mentioned and she is looking for teachers who are already using the Zoo
http://blog.zooniverse.org/2014/02/03/thoughts-from-the-classroom-jack-and-brendan/
Publication: Creativity in citizen cyberscience: All for one and one for all, Jennett+ 2013. http://ac.aup.fr/~croda/tclab/creativity&attention2013Material/CharleneJennett.pdf creativity and fun in learning
Publication: Learning by volunteer computing, thinking and gaming: What and how are volunteers learning by participating in Virtual Citizen Science?, Kloezter+ 201 Session 38 "informal and social aspects in adult learning and science education and also stresses the importance for learning through the indirect opportunities provided by the project: the
main one being the opportunity to participate and progress in a project community,
according to one's tastes and skills." ie. the forum and Talk
RAS Royal Astronomical Society, BAA British Astronomical Association, and more...**
Blog: And the winner is….. Arp 142 (The Penguin Galaxy) August 8, 2013 http://blog.galaxyzoo.org/2013/08/08/and-the-winner-is-arp-142-the-penguin-galaxy/ by karenlmasters
Blog: Vote for the Cover Image of October “Astronomy and Geophysics” July 17, 2013 by karenlmasters http://blog.galaxyzoo.org/page/8/ we have put together five images for you to vote on
Blog: A Galaxy Zoo science team dinner June 7, 2013 by karenlmasters http://blog.galaxyzoo.org/2013/06/07/a-galaxy-zoo-science-team-dinner/ Galaxy Zoo hosted a Specialist Discussion at the Royal Astronomical Society in London, on the topic of Morphology in the Era of Large Surveys... One of the other fun things about this meeting was that as well as the fantastic invited speakers, mostly from outside Galaxy Zoo collaboration, many members of the Galaxy Zoo science team were able to attend and contribute talks. We had representatives of team members from Minnesota, Oxford, Nottingham, Portsmouth, Hertfordshire and Zurich in attendance"
Blog: Bars in Spain! November 9, 2011 by Ben http://blog.galaxyzoo.org/2011/11/09/bars-in-spain/ "Recently the Spanish media has described the Google funded GZ bar drawing project. The article, which can be seen here and was based on this MNRAS paper , was written by members of the Spanish Public Agency for the Dissemination of Scientific Knowledge, (see here), which is a leading news agency in Spain."
Blog: Galaxy Zoo podcast with S and T October 7, 2011 http://blog.galaxyzoo.org/2011/10/07/galaxy-zoo-podcast-with-st/ There’s an article on Galaxy Zoo in this month’s Sky and Telescope which comes with a podcast!
Blog: Galaxy Zoo featured on Astronomy Picture of the Day! APOD October 26, 2009 by The Zooniverse http://blog.galaxyzoo.org/2009/10/26/galaxy-zoo-featured-on-astronomy-picture-of-the-day/ http://apod.nasa.gov/apod/ap091026.html " a group of vibrant mergers found by Zooites demonstrates the diverse zoo-like nature of many interacting galaxies in the universe."
Blog: Galaxy Zoo Lunch at the AAS June 8, 2011 by karenlmasters http://blog.galaxyzoo.org/2011/06/08/galaxy-zoo-lunch-at-the-aas/ pictures
Blog: Live from the AAS International Year of Astronomy Press Conference, part 2 June 9, 2009
by The Zooniverse http://blog.galaxyzoo.org/2009/06/09/live-from-the-aas-international-year-of-astronomy-press-conference-part-2/Blog: Galaxy Zoo at Dragon*Con September 2, 2008 http://blog.galaxyzoo.org/2008/09/02/galaxy-zoo-at-dragoncon/ "This annual event is among the worlds largest gatherings for people interested in science fiction, fantasy, gaming, the electronic world – and science. ..."
Blog: Galaxy Zoo at the British Astronomical Association by Karen April 2009 http://blog.galaxyzoo.org/2009/04/06/galaxy-zoo-at-the-british-astronomical-association/ "The aim of my talk was to show all the interesting thing we can learn about galaxy formation and evolution from galaxy classifications."
Blog: Howdy from Texas! American Astronomical Society meeting in Austin, Texas.January 8, 2008 by The Zooniverse http://blog.galaxyzoo.org/2008/01/08/howdy-from-texas/
Blog: Interview with Chris on cosmology January 10, 2008 by The Zooniverse http://blog.galaxyzoo.org/2008/01/10/interview-with-chris-on-cosmology/ "Galaxy zoo finds people are screwed up, not the Universe"
Posted
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by
Budgieye
moderator
7.10 She's an Astronomer https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=7
ongoing She’s an Astronomer series on the Galaxy Zoo Blog is support of the IYA2009 cornerstone project of the same name (She’s an Astronomer). We are listed on the She’s an Astronomer website in their Profiles.
Here’s the full list of interviews:
Zooites:
Hanny Van Arkel (Galaxy Zoo volunteer and finder of Hanny’s Voorwerp). Hanny’s interview in het Nederlands.Alice Sheppard (Galaxy Zoo volunteer and forum moderator).
Gemma Couglin (“fluffyporcupine”, Galaxy Zoo volunteer and forum moderator).
Aida Berges (Galaxy Zoo volunteer – major irregular galaxy, asteroid and high velocity star finder). Entrevista de Aida en español.
Julia Wilkinson (“jules”, Galaxy Zoo volunteer. Frequent forum poster, and member of irregular and HVS projects).
Els Baeton (“ElisabethB”, Galaxy Zoo folunteer. Frequent forum poster, and member of most of the spin-off projects!). Els’s interview in het Nederlands.
Hannah Hutchins (Galaxy Zoo volunteer, forum poster and co-creator of Galaxy Zoo APOD)
Elizabeth Siegel (Galaxy Zoo volunteer, forum poster)
Researchers:
Dr. Vardha Nicola Bennert (researcher at UCSB involved in Hanny’s Voorwerp followup and the “peas” project). Vardha’s Interview auf Deutsch.
Carie Cardamone (graduate student at Yale who lead the Peas paper).
Dr. Kate Land (original Galaxy Zoo team member and first-author of the first Galaxy Zoo scientific publication; now working in the financial world).
Dr. Karen Masters (researcher at Portsmouth working on red spirals, and editor of this blog series.)
Dr. Pamela L. Gay (astronomy researcher and communicator based at Southern Illinois University).
Anna Manning (Masters’ Degree Student in Astronomy at Alabama University working with Dr. Bill Keel on overlapping galaxies)
Dr. Manda Banerji (recent PhD and author of the machine learning paper)Prof. Meg Urry (Professor at Yale, Zookeeper Kevin’s current boss!).
Blog: IYA 2009: She's an Astronomer May 1, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/05/01/iya-2009-shes-an-astronomer/ , "2009 is the International Year of Astronomy, and all sorts of projects have been launched to promote astronomy. One of the IYA2009 Cornerstone projects is She’s an Astronomer and its aim is to address the issues around gender imbalance in astronomy (only roughly 1/4 of professional astronomers are women) by promoting gender equality and empowering women."
Blog: She's an Astronomer: Meg Urry May 2, 2010 by karenlmasters http://blog.galaxyzoo.org/2010/05/02/shes-an-astronomer-meg-urry/ "(Interesting fact: 2/3 of married women in physics are married to men in physics or closely related fields.)...As a postdoc, the lack of women started to bother me. Where were the other women who had gotten physics degrees? At MIT, I was the only female postdoc in space science, out of dozens. Meanwhile, people had been telling me for years that, as a woman, I would benefit (the implication was, unfairly) from affirmative action – I should have no trouble getting into grad school, getting a postdoc, getting a faculty position, whatever – because all the universities would be eager to hire women. When people say this today, as they often do, I have to laugh. I sure do wish it were true but 30 years in physics and astronomy have shown me, instead, the huge pile of female talent that goes wasted every year."
Blog: She's an Astronomer: Did we really need that series? by karenlmasters January 2011 http://blog.galaxyzoo.org/2011/01/07/shes-an-astronomer-did-we-really-need-that-series/ "“The 1998 PPARC/RAS survey for the first time enquired into the gender of members of the UK astronomical community. Women comprised 22% of the population of PhD students, which compares favourably with the 20% of students accepted for undergraduate places in physics and astronomy. However, only 7% of permanent university staff in astronomy are female. Of the UK IAU membership in 1998, 9.2% are female.”"
Blog: She's an Astronomer: Elizabeth Siegel March 24, 2010 by karenlmasters http://blog.galaxyzoo.org/2010/03/24/shes-an-astronomer-elizabeth-siegel/ "When I was around 14 years old I had read a lot of books on the moon and meteorites and wanted to be an astronomer. That year my Christmas present was a telescope...I love looking at the galaxies, learning about them and discussing them with fellow zooites from around the world online or in person through group meets like the one we had in September 2008 at Chabot Observatory in Oakland California (West Coast Meet Ups Forum Thread). "
Blog: She's an Astronomer: Manda Banerji March 1, 2010 by karenlmasters http://blog.galaxyzoo.org/2010/03/01/shes-an-astronomer-manda-banerji/ "s artificial neural networks to estimate the redshifts of galaxies from their colours. ..I first became interested in astronomy when I was about ten years old. I still remember the day actually. We were visiting the Kennedy Space Center in Orlando on a family holiday in Florida. I was so inspired and fascinated by everything I saw and just contemplating the vastness of space and the many things we didn’t know about it, I couldn’t imagine not wanting to find out more. Ever since that day I have wanted to be an astrophysicist. I should also mention that were it not for my brilliant physics teacher at sixth form college, I probably would never had the confidence to pursue an academic career. He would spend most of his lessons making us read New Scientist and watching Horizon and I think this is when I developed an appetite for scientific research and began to appreciate the creativity and independence it affords.... I don’t think astronomy is any longer a male dominated subject ,,the need to move around frequently for postdoc positions often means people have to make very tough choices...he lack of female role models...There are very few female astronomers in very senior academic positions and even fewer who have chosen to have a family. "
Blog: She's an Astronomer: Anna Manning February 1, 2010 by karenlmasters http://blog.galaxyzoo.org/2010/02/01/shes-an-astronomer-anna-manning/ "On field trip in middle school we spent a day at space camp in Florida which began my general interest. In high school I really enjoyed Physics class and decided to major in it in college where I started doing actual research in astronomy.... A female office mate and I were discussing how we don’t think there have been any obstacles for us"
Blog: She's an Astronomer: Hannah Hutchins February 15, 2010 by karenlmasters http://blog.galaxyzoo.org/2010/02/15/shes-an-astronomer-hannah-hutchins/ "Knowing that I’m helping science. It’s fantastic because I don’t have to be an adult in university doing astrophysics or something to be able to contribute to science like this. ..an astronomy book called ‘Spacewatching: The ultimate guide to the stars and beyond’, I remember staring in wonder at pictures of nebulae ... there is sometimes an attitude where it is bad to have an interest in science and maths, they have to be viewed as so very boring. "
Blog: She's an Astronomer: Karen Masters November 2, 2009 http://blog.galaxyzoo.org/2009/11/02/shes-an-astronomer-karen-masters/ " I am much more proud of is initiating and running this She’s An Astronomer series. It seemed like an obvious thing to do to me, to hi-light the amazing women who have been involved in Galaxy Zoo, and of course very timely with the IYA2009 cornerstone project. As a woman in astronomy I’m unfortunately very aware of the gender imbalance we face and hoped to do something which was both positive and encouraging for more women to get involved, but also tried to address some of the reasons for the current problem. I was very keen to profile both the researchers and a cross section of the volunteers – so you will notice that the series has so far been alternating between researchers and “Zooites...I don’t remember what first piqued my interest about astronomy in particular, but I do remember collecting newspaper clippings of astronomy stories in a scrap book as a young teenager (pre-internet), ...it seems to be difficult to attract anyone into science (boys or girls)....The second problems seems to be societal. Many people see girls/women who are interested in science as weird.... to remain in a career as a researcher is very difficult”.
Blog: She's an Astronomer: Pamela L. Gay December 3, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/12/03/shes-an-astronomer-pamela-l-gay/ "it has been a pleasure to keep busy trying to understand the people who make the Zoo the great community that it is....The thing about science is the most interesting questions that get answered are the ones no one realized they were asking. So far Galaxy Zoo has found blue elliptical galaxies, red spiral galaxies in clusters, what may be a light echo from a quasar (Hanny’s Voorwerp), and small wildly star bursting galaxies (the peas). I think the most interesting question Galaxy Zoo will help answer may just be, “What amazing things can the universe offer that we didn’t imagine? ...” I just can’t remember a time when I wasn’t interested in astronomy and when I didn’t like French fries. The first memory I have of doing something related to astronomy is looking through a small dime-store telescope at the moon with my dad when I was about 5... As a kid I got Odyssey magazine, and then Sky and Telescope. I went to Space Camp, and studied astronomy in High School. .. While it is harder to succeed as a woman, positive accomplishments are noticed and remembered (And since there are so few women, the positive things I do are easier for people to remember as being things I did.) I suspect it will take at least a generation (and major reform to things like maternity leave and health care) for real change to take place, but I believe the change has started.”
Blog: She’s an Astronomer: Els Baeten December 15, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/12/15/shes-an-astronomer-els-baeten/ "I’ve been involved in most of the projects. First of all classifying galaxies in Galaxy Zoo 1 and 2 of course, and I also really like the special hunts for mergers, peas and voorwerpjes. My contribution to the Peas paper was finding lots of them. And it was really great to see my name mentioned in that paper! I’m also rather fond of Gravitational Lenses ... love the fact that people from every background are able to make a real contribution to scientific research. It’s also great to be part of a team of enthusiastic people from all over the world....When I was young I saw all around me that science was a part of everyday life. Both my grandfathers were avid readers who loved sharing their knowledge about nature and everything with their grandchildren. I watched the first moon landing in my pyjamas together with my entire family. My sister, brother and I had a really big book with the history of the earth and also with lots of pictures of the solar system and the stars. I also have fond memories of watching Cosmos with Carl Sagan with my family. And our parents let us stay up very late during clear summer nights to watch the stars and the occasional meteor...In my school, a traditional all girls school, I never had the impression that science and maths weren’t for girls. They were just subjects some of us were good at. " In Dutch http://blog.galaxyzoo.org/2009/12/15/zij-is-een-astronoom-els-baeten/
Blog: She's an Astronomer: Julia Wilkinson Nov 2009 http://blog.galaxyzoo.org/2009/11/15/shes-an-astronomer-julia-wilkinson/ "I also attend Galaxy Zoo meet ups whenever possible which are great opportunities to discuss astronomy in general with like minded people and find out about future plans for Galaxy Zoo....I get a real kick out of the fact that I am contributing to cutting edge research in astronomy on an equal footing with other volunteers and professional astronomers. The sense of being part of a team is very real. The fact that we are kept informed of research developments on the forum and the Blog and then credited as co-authors in academic papers is wonderful and epitomises the ethos of Galaxy Zoo. I also like the fact that we are encouraged to have a go and analyse data for ourselves....The Apollo Moon programme was very active when I was growing up and I was fascinated by it. I had my first telescope when I was 12. I learned the constellations, watched Patrick Moore and later Carl Sagan. I now own telescopes which allow me to see the Moon in incredible detail ...when I was at school I suppose. Girls just weren’t encouraged to take sciences. "
Blog: She's an Astronomer – International Editions October 15, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/10/15/shes-an-astronomer-international-editions/ "She’s an Astronomer series is part of the International Year of Astronomy – and what better way to be international than to provide some posts in languages other than English! "
Blog: She's an Astronomer: Aida Berges http://blog. galaxyzoo.org/2009/10/01/shes-an-astronomer-aida-berges/ Aida Berges (“lovethetropics“) lives in Puerto Rico "For the HVSs project it was pure coincidence that I found two in about five minutes....What I like the most is helping scientists discover new things and being there when that happens. And the people at the Zoo are wonderful, starting with the Moderators, Zookeepers and Zooites. For me it feels like coming home....When I was young I lived in the country so the moon and stars were spectacular…ever since I first saw the stars I have been interested. I started to surf the internet because I wanted to read everything I could about astronomy...I come from a third world country, the Dominican Republic. In my time girls were supposed to marry young and be housewives, but now I see that the universities there are full of women studying and that makes me so proud. "
Blog: She's an Astronomer: Kate Land September 15, 2009 by karenlmasters http://blog.galaxyzoo.org/2009/09/15/shes-an-astronomer-kate-land/ "I was pretty heavily involved in all stages of the project for its fist year from helping to test the site, monitor traffic, analyse data, interact with zooites, deal with the press, and eventually publish papers! I was part of the front line when it all kicked off in July 07 – and I mean front line! It was madness with thousands of emails a day coming in, media people ringing for interviews, and servers exploding! I loved answering peoples questions but we quickly realised that we couldn’t keep up with the emails and we launched first the FAQ page on the site, and then the forum. The media part was fun too… doing live radio interviews on the fly, and helping with pieces for .. I was, and remain, more interested in cosmology; the study of Universe as a whole...As a kid I was always fascinated by big questions, like ‘where is the edge of the Universe?’, and ‘what is empty space made of?’. I couldn’t sleep sometimes for getting myself so confused and freaked out! My granddad was also a massive influence on me – he was a mathematician, and fascinated by astronomy. At 7 he bought me a calculator, at 8 a star chart, and at 9 a subscription to the Junior Astronomical Society. I also got handed down a telescope about this time and saw some of Jupiter’s moons and Saturn’s rings from my bedroom window. Very cool! Maths became my thing at school, ..."
Blog: She's an Astronomer: Hanny van Arkel July 2009 http://blog.galaxyzoo.org/2009/05/01/shes-an-astronomer-hanny-van-arkel/ "Hanny discovered what is now known as “Hanny’s Voorwerp” while classifying galaxies on Galaxy Zoo, back in 2007. ...lectures about the Voorwerp and Galaxy Zoo ...One of the things I still like is the fact that people without a scientific background can actually contribute to real scientific research here. And personally I get a lot back from it as well and then I’m not even talking about all the fun stuff I get to do. I’ve learned a lot about astronomy in general and the English language for that matter and I met some of my best friends through the Galaxy Zoo meet-ups." in Dutch http://blog.galaxyzoo.org/2009/12/12/zij-is-een-astronoom-hanny-van-arkel/
Blog: She's an Astronomer: Alice Sheppard July 2009 http://blog.galaxyzoo.org/2009/07/01/shes-an-astronomer-alice-sheppard/ "...moderated the forum since it was started... link between the scientists and everybody else...nvolved in Waveney’s Irregulars project, ....I’ve moderated the forum since it was started. It’s become a wonderful place – my pride and joy! I answer astronomy and technical questions, deal with problems, and organise on-forum and public events. Oh, and chat, of course. Both genders do that. Honest! I’m the only person who’s been moderating since day 1. I’m also sort of the link between the scientists and everybody else. If Chris or Kevin or Jordan or Pamela want something, they ask me, and it’s usually me the zooites go to to get something sorted out. I also run the Object of the Day rota."
Blog: She's an Astronomer: Gemma Coughlin August 2009 http://blog.galaxyzoo.org/2009/08/28/shes-an-astronomer-gemma-coughlin/ "(better known as “fluffyporcupine“) has been one of the Galaxy Zoo forum moderators ..a PhD in Engineering..members of the peas corps) for the Peas paper ...Everyone is so patient and helpful (even if we disagree) and very free with a wealth of knowledge (and the beer at meet ups). Never thought I would meet so many kind and interesting people on the internet let alone for so many of them to become friends!...My dad showed me Saturn through a scope as a kid – that got me hooked. He still laughs at my reaction – the wow i can SEE the rings! "
Blog: She's an Astronomer: Vardha Nicola Bennert June 2009 http://blog.galaxyzoo.org/2009/06/01/shes-an-astronomer-nicola-bennert/ a spectrum of “Hanny’s Voorwerp”. I agreed, went observing, had several clear nights and was able to get the spectrum. I was immediately intrigued by the object [Hanny's Voorwerp] as the spectrum looked very familiar to me – very much like the narrow-line regions of active galaxies ... that there was no evidence of an active galactic nucleus in the center!..... analyzed HST images of the “peas” discovered in the Galaxy Zoo project....As a child, I loved looking at the stars, and was fascinated by the books by Prof. Stephen W. Hawking, although I did not understand much at the time… However, this did not turn me off from pursuing a scientific career. On the contrary, I always found it exciting to be at the edge of my understanding and learn new things all the time...It is great that so many citizen astronomers are involved, and that it has such a strong public outreach component. For me, public outreach is not only our duty as researchers who are basically funded through the tax payers’ money but something that I enjoy a lot. I love seeing how people get excited about astronomy and the research that I am doing." In German http://blog.galaxyzoo.org/2010/01/15/sie-ist-astronom-vardha-nicola-bennert/
Blog: She’s an Astronomer: Carie Cardamone July 2009 http://blog.galaxyzoo.org/2009/07/27/shes-an-astronomer-carie-cardamone/ Her research focuses on the properties of distant Active Galactic Nuclei (AGN) and their host galaxies. By studying these objects she intends to further our understanding of how the growth of galaxies is tied to the growth of their central black holes. Her most recent paper, “Galaxy Zoo Green Peas: Discovery of A Class of Compact Extremely Star-Forming Galaxies,...I studied planets and archeoastronomy (the history of human understanding of astronomy) but when we got to Cosmology, learning about the history of the universe, I was fascinated by how our understanding of the universe is growing and changing as new discoveries are uncovered each year.
In my opinion, there are two barriers to a woman becoming an
astrophysicist.The first is very simple: it may never occur to her to study
Astronomy.....The second barrier to a woman becoming an astrophysicist comes much
later as she is finishing up graduate school and starting her career.
An astronomer must spend much of her 20s and 30s moving from
institution to institution, completing a graduate degree and a couple
of postdoctoral positions before finding a permanent position. If
you’re married and thinking about starting a family, it can be very
difficult to be this mobile....”Posted
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by
Budgieye
moderator
Index for Galaxy Zoo Talk: Artifacts, our solar system, Fun things https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
8.1 Artifacts, cosmic rays 8.2 airplanes. satellites and meteors 8.3 asteroids, ice worlds, Planet Nine 8.4 comets 8.5 Sun Moon planets 8.6 Just Chat, birthdays, greetings, 8.7 jokes, limericks 8.8 our astrophotography 8.9 Artistic images of galaxies 8.10 Fun images of galaxies8.1 Artifacts, cosmic rays https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
Hashtag: #artifact artifact
Talk: New to Galaxy Zoo? Want Help? Read this! by vrooje ADMIN, SCIENTIST http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ1006byh weird stuff, overexposed stars, star spikes, satellite trails, #edgeofchip #artifact also, things to look for voorwerpjes. overlaps and mergers, bulgeless
cosmic ray hit http://talk.galaxyzoo.org/#/subjects/AGZ0003rquBlobs of pure red, green or blue created hen cosmic rays hit the ccd plate on the telescope.There are more cosmic ray artifacts in older data, such as dr7. In dr8, more have been cleaned away by the software. Sometimes the clean up produces circular artifacts. Sometimes cosmic rays are embedded in the galaxy image and are not cleaned away. Possibly the software may clean up something that it shouldn't.
Cosmic Rays and Other Nonsense in Astronomical CCD Imagers
http://www.astronomy.ohio-state.edu/MDM/OSMOS/CCD_CosmicRays_groom.pdf
artifact nuclear ringTalk:UKIDSS artifacts planetaryscience http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ0000fd1 "blue nuclear rings, rainbow coloured satellite trails,
Forum: WOW WHAT'S THAT? LOOK HERE FIRST! by Jules 2009 http://www.galaxyzooforum.org/index.php?topic=276702.0 nebulae, overexposed stars, star clusters,satellite plane and meteor trails, cosmic ray hits, asteroids, comets, misaligned filters, "muffins" which are rows of malfunctioning ccds, "platterpillars" 2 or 2 close stars which software thinks might be galaxies, window ghost in Hubble images, edge of surveys creating black edges.
Blog: Images and artifacts in Galaxy Zoo: UKIDSS May 2014 by Kyle Willett http://blog.galaxyzoo.org/2014/05/25/images-and-artifacts-in-galaxy-zoo-ukidss/ green squares, rings and ghosts, grid patterns and speckles
Blog: How to handle Hubble images April 12, 2010 by Bill Keel http://blog.galaxyzoo.org/2010/04/12/how-to-handle-hubble-images/ How cosmic rays are cleaned up in Hubble images.
Forum: Hubble and Galex artifacts by c_cld http://www.galaxyzooforum.org/index.php?topic=277602.msg465804#msg465804 "When you buy a camera, may be you want to know the pro's and con's about optics, sensor, image processing and so on.
Between CCD and Cmos sensor there are great differences on blooming artefact for example: see http://dpanswers.com/content/tech_defects.phpFor zoo images, I referred to SDSS "Famous Places - Artifacts" http://casjobs.sdss.org/dr7/en/tools/places/page6.asp
and more convincingly you could browse any pipeline processing and get explanations of defects. One readable is on Galex site
7.GALEX Image Artifacts
http://www.galex.caltech.edu/DATA/gr1_docs/GR1_Pipeline_and_advanced_data_description_v2.htm#_Toc58822750a few excerpts:
The principal artifacts are:Bright star halos Bright star beveled edge reflections Dichroic
ghosts Detector window ghosts Near-field stray light from bright
stars Other artifacts are produced by transient effects.? These
include Unmasked detector hot spots (hot spot masks are updated
occasionally as hot spot come and go) Satellite transits Asteroid
motion Local flaring of detector count rate caused by South Atlantic
Anomaly, solar activityOn the GEMS tiles we see ghosts mostly from stars, or very bright galaxies sources as
large (dim red ) ghosts due to detector window Edge Ghost by window
Bevel Reflection"
window ghost, Hubble artifactForum: Sat May 29, 2010 Window ghosts / window ghost by Budgieye http://www.galaxyzooforum.org/index.php?topic=277796.0
http://talk.galaxyzoo.org/#/subjects/AGZ000bhhv
Talk: In the DECaLS telescope images, the ccd plates are thicker, and cosmic ray hits become longer. #muon #worm by c_cld http://talk.galaxyzoo.org/#/boards/BGZ0000003/discussions/DGZ0001twc?page=1&comment_id=56b5c5bef724d7640d00108a
http://www.astronomy.ohio-state.edu/MDM/OSMOS/CCD_CosmicRays_groom.pdf
a cosmic ray hitUnknown object / cosmic ray hit, not geostationary satellite https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001y94?page=4&comment_id=57210ffe08ca6d46e000040b
http://www.astro.rug.nl/~nobels/Characterising_the_cosmic_rays_in_a_CCD_nobels_and_bremer.pdf
The invasion fleet
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1011508?comment=1672819&page=1
http://www.legacysurvey.org/viewer?ra=119.7951&dec=22.8105&zoom=15&layer=decals-dr5
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1270/1070138?comment=1766797&page=1Triangular artifacts in DECaLS legacy survey
Internal reflection in DECaLS dr5, gone in dr8
http://www.legacysurvey.org/viewer?ra=155.9708&dec=19.9787&layer=decals-dr5&zoom=10
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1270/1098275You are seeing internal reflection within the telescope. It is even more confusing if you zoom out. The 4 dark lines is the "spider", the arms that hold up the secondary reflector. The reflection is probably caused by a nearby bright star, which has been blacked out in dr5.
http://www.legacysurvey.org/viewer?ra=214.2998&dec=19.1379&layer=decals-dr5&zoom=9It has been repaired in DECaLS dr7
http://www.legacysurvey.org/viewer?ra=214.2119&dec=19.1223&layer=dr8&zoom=9Posted
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Budgieye
moderator
8.2 airplanes, satellites and meteors https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
Meteor trails - Real & suspected http://www.galaxyzooforum.org/index.php?topic=271994.0
AIRPLANES
propellors? 587738951488897186
http://www.legacysurvey.org/viewer?ra=232.50314363395603&dec=4.995703951952791&zoom=15&layer=decals-dr5
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1086547?comment=1782600&page=1
SATELLITES
satellites by c_cldTransient objects from SDSS: Near earth objects (NEO) asteroids and high orbit spacecrafts (above geosync) #satellitetrail by c_cld https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000x5k
tumbling satellite?
http://www.legacysurvey.org/viewer?ra=251.2787&dec=19.6775&layer=decals-dr5&zoom=14
tumbling satellite? http://dr10.sdss3.org/sas/dr10/boss/photoObj/frames/301/2141/4/frame-irg-002141-4-0124.jpg
satellites?
http://cas.sdss.org/dr7/en/tools/quicklook/quickobj.asp?id=587730841524240498
Talk: "Green sabres" - how easy is it to identify green satellite trails, from PhotoObj parameter values? started by Jean Tate http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000wiz?page=2&comment_id=5467297b415ac13c21000009
Forum: WOW WHAT'S THAT? LOOK HERE FIRST! by Jules 2009 http://www.galaxyzooforum.org/index.php?topic=276702.0 nebulae, overexposed stars, star clusters,satellite plane and meteor trails, cosmic ray hits, asteroids, comets, misaligned filters, "muffins" which are rows of malfunctioning ccds, "platterpillars" 2 or 2 close stars which software thinks might be galaxies, window ghost in Hubble images, edge of surveys creating black edges.
flash from satellite?
http://skyserver.sdss3.org/dr9/en/tools/explore/obj.asp?id=1237679439347056777
Forum: Sunday 12th August 2012: What's this then? [Iridium flash] by Alice http://www.galaxyzooforum.org/index.php?topic=280334.msg612835#msg612835
geostationary satellites in DECaLS
http://www.legacysurvey.org/viewer/jpeg-cutout/?ra=128.5950&dec=5.0034&zoom=9&layer=decals-dr8
Talk: Unknown object / cosmic ray hit, not geostationary satellite page 3 by c_cld https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001y94?page=3 examples of geostationary satellite trails in DECaLS
https://talk.galaxyzoo.org/#/boards/BGZ0000006/discussions/DGZ0001y94
https://talk.galaxyzoo.org/#/subjects/AGZ000cfa2
Forum: Wednesday, 29th August, 2012: Blue Satellites by Jean Tate http://www.galaxyzooforum.org/index.php?topic=280367.0 why there are so few blue satellites? a study of SDSS filters
website APOD: Andromeda before Photoshop Image Credit: Kees Scherer shows the many airplane and sateliite trails on an image before cleanup.
https://apod.nasa.gov/apod/ap191014.html?fbclid=IwAR0A_FHRQc_pYnmp22IP0vJMWkSg-lD76HD_KlQkXMlfdlYTY182X1wv2PIMETEORS
meteor?
587732703408292095
meteor?
http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=587736975810429073 http://www.galaxyzooforum.org/index.php?topic=271994.30
Publication: The distribution of interplanetary dust between 0.96 and 1.04 au as inferred from impacts on the STEREO spacecraft observed by the heliospheric imagers by Davis + http://adsabs.harvard.edu/abs/2012MNRAS.420.1355D This is about meteor dust fragments
Posted
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Budgieye
moderator
8.3 asteroids, ice worlds, TransNeptunian Objects, Planet Nine https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
There are no major planets in SDSS images.
Pluto (and some planets) in wiseview and byw flipbooks
https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9/talk/694/1209199?comment=2027098Jupiter in infrared WISE images. It is blurred because it moves during imaging. http://irsa.ipac.caltech.edu/applications/finderchart/#&id=Hydra_finderchart_finder_chart&projectId=finderchart&UserTargetWorldPt=2.1625;-0.4208;EQ_J2000&subsize=0.195556&sources=DSS,SDSS,2MASS,IRIS,WISE&DoSearch=true
#asteroid asteroid
Collection asteroids - Collection ID: CGZS000068 - by wtaskew http://talk.galaxyzoo.org/#/collections/CGZS000068
There are asteroids and ice worlds (dwarf planets past Neptune) on our data.
How to submit new solar system objects to the minor planet center https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/1024570
asteroids look like this. The asteroid moved during the time the SDSS telescope took the blue, red and green images.
Talk: Transient objects from SDSS: Near earth objects (NEO) asteroids and high orbit spacecrafts (above geosync) #satellitetrail by C_cld http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000x5k
Forum: The Asteroid Thread http://www.galaxyzooforum.org/index.php?topic=3393.0 15,000 posts of asterods, with some identified in the posts at the end.
Forum: Just Another Asteroid (Feb. 20th, 2010) http://www.galaxyzooforum.org/index.php?topic=277264.msg434466#msg434466 How to find the name of an asteroid in an image
NASA: Small Body Identification http://ssd.jpl.nasa.gov/sbfind.cgi This tool provides a list of small-bodies only (asteroids and/or comets) which are likely contained in the specified field on the specified date/time.
https://ssd.jpl.nasa.gov/sbdb.cgi
You have to fill in the JPL form yourself like this:**************** SBFIND v2.9-lin.ifort 2019-Jul-12 02:07:17 ****************
Observation Date = 2008-Oct-08 09:33:00 (2454747.897917 UT)
Location = Apache Pt.-Sloan Digital Sky Survey
Center R.A., Dec. = 16:34:27, +04 15'11" (Apparent)
Offsets (+/-) = 00:00:02, +00 00'30"
Magnitude Limit = ( none )
Magnitude Req. = false
Requested Group = all asteroids and comets
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1048036?comment=1732831
You have to fill in the JPL form yourself something like this, as put together by Rick for an asteroid in SDSS, location Apache Point, USA
The DECaLS location is
[W84] Cerro Tolodo-DECam (I think)
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1048036?comment=1732831
Twp-click Finding of asteroids in DECaLS A. F. Jonkeren
@Ghost_Sheep_SW https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/578781?comment=959825&page=1"Oh and take a look at the very cool feature Dustin has recently built in; when you set your pointer on the DECaLS asteroid and click ‘DATA’, you’ll see ‘JPL’ links at the back which automatically search the JPL database on mjd, object coordinates and telescope coordinates."
Near-earth asteroidhttps://talk.galaxyzoo.org/#/subjects/AGZ0002ftz by VJOM, ID posted by c_cld
Finally, I identified an asteroid https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0001y3h
NASA: Small Body Identification http://ssd.jpl.nasa.gov/sbfind.cgi
This tool provides a list of small-bodies only (asteroids and/or
comets) which are likely contained in the specified field on the
specified date/time.Asteroid description http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2007 MB24
Date of green image mjd_r 5.29091759E4 or 52909.1759
Modified Julian Date converter http://pdc.ro.nu/mjd.cgi
The 4th Release of the Sloan Digital Sky Survey Moving Object Catalog http://www.astro.washington.edu/users/ivezic/sdssmoc/sdssmoc.html
"The 4th Release of the Sloan Digital Sky Survey Moving Object Catalog lists astrometric and photometric data for 471,569 moving objects observed prior to March 2007. Of those, 220,101 are linked to 104,449 unique objects from ASTORB file, and their orbital elements are also listed."← direction of motion is green red blue, solar system objects move to the "left" or east most of the time. ["left" is "east" up in the sky]
→ direction of motion is green red blue, retrograde motion, asteroid appears to be going "backwards", an illusion caused by Earth's faster motion.
Forum: Saturday 08th November 2008 - Moving objects by FermatsBrother http://www.galaxyzooforum.org/index.php?topic=273089.msg219938#msg219938 Mapping asteroids, retrograde motion
Blog: Rocks… In… Spaaaaaace by Brooke Simmons January 2014 http://blog.galaxyzoo.org/2014/02/25/rocks-in-spaaaaaace/ These objects are a source of intense study for some astronomers and planetary scientists, and the SDSS Moving Object Catalog gives the properties of over 100,000 of them. Planetary astronomer Alex Parker, who studies asteroids, has made a video showing their orbits.
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587724199353581588
Forum: Re: The Asteroid Thread Here's two shots of asteroid Holeungholee (aka 1978 WU14, 1962 XO1, 1962 YC, 1972 RM1 or 1988 RM) by FermatsBrother http://www.galaxyzooforum.org/index.php?topic=3393.msg205270#msg205270
asteroids in DECaLS
The blue and green images can be very close, or further apart. The red image can be close or on the other side of the sky. Click on DECaLS brower and filter image to see dates and times when taken.
DECaLS red is close
http://legacysurvey.org/viewer/jpeg-cutout/?ra=139.8727&dec=19.6201&zoom=15&layer=decals-dr5
DECaLS slow moving asteroid
https://talk.galaxyzoo.org/?_ga=1.235320775.711441289.1371287491#/boards/BGZ0000005/discussions/DGZ00020qm?page=1&comment_id=576ec8e2992fff00bd0033dd http://legacysurvey.org/viewer?ra=183.2125&dec=2.6718&zoom=16&layer=decals-dr5
DECaLS big asteroid, no red image
http://legacysurvey.org/viewer/jpeg-cutout/?ra=119.1384&dec=5.5383&zoom=15&layer=decals-dr5
Talk: One or two asteroids https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0001zaj?page=1&comment_id=573d0ad34d344144880006a4 double exposure of asteroid in DECaLS
Talk: Green and magenta asteroid in DECaLS dr2 https://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0001wql?page=1&comment_id=5704bed3861f894ff300100f blue image landed on a red star to create magenta (purple) colour
Talk: asteroid covers whole galaxy (well, it is a distant galaxy)
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1082607?comment=177726
http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237663784741044578
Images of asteroids in KiDS the Kilo-Degree Survey
5 photographic exposures in RGB, of about 1000 sec each, so 15 images stacked in total
so 5 images showed asteroid, images stacked, and slight gap between each exposure
https://blog.galaxyzoo.org/2017/01/31/new-images-for-galaxy-zoo-from-gama-kids/
website: http://kids.strw.leidenuniv.nl/index.php technical specifications http://kids.strw.leidenuniv.nl/techspecs.php
website: Asteroid Zoo: Hunt for Resource-Rich Asteroids! http://www.asteroidzoo.org/
website: Citizen science project - asteroids in SDSS
Blog: Anyone Fancy an Asteroid? by Chris Lintott June 2013 http://blog.zooniverse.org/2013/06/27/anyone-fancy-an-asteroid/
" Planetary Resources’ fundraising effort to build and launch the ARKYD space telescope. They’ve already raised more than a million dollars – helped in part by a cunning plan to let you take a picture of yourself in space – but they’re not stopping there. With three days to go, we’re delighted to announce that they’re going to try and help us help Zooniverse volunteers hunt for potentially hazardous asteroids."Forum: Thursday 21st August 2008 (Els to power 5) by Alice http://www.galaxyzooforum.org/index.php?topic=272024.0 Five asteroids in one image.
How to submit new solar system objects to the minor planet center
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/1024570
Ice Hunters:
Targeting Crisis Averted for New Horizons By: Shannon Hall | October 21, 2014 in Sky and Telescope NASA scientists have found three potential Kuiper belt objects in the nick of time, saving the Pluto-bound probe from missing out on half of its mission. - See more at: http://www.skyandtelescope.com/astronomy-news/targeting-crisis-averted-new-horizons-10212014/?et_mid=699761&rid=246903522#sthash.M2IrogEw.dpuf But, despite using some of the best ground-based telescopes in the world, the search turned up only 50 new KBOs, none of which were close enough for New Horizons to reach. So the team turned to Hubble and was awarded roughly two weeks of observing time — a large chunk on the most sought-after telescope. And it paid off. Hubble quickly picked up three potential targets.
Citizen Scientists: Discover a New Horizons Flyby Target in Zooniverse: Ice Hunters: New Horizons Next Destination Starship Asterisk* APOD and General Astronomy Discussion Forum http://asterisk.apod.com/viewtopic.php?f=32&t=24234#p151079 "The world is invited to help discover a potential new, icy follow-on destination for NASA’s New Horizons spacecraft, using the Ice Hunters website. New Horizons is currently en route to make the first flyby of the Pluto system, and is then capable of exploring additional bodies still farther out in the Kuiper Belt. Through this citizen science project, the public can help scientists search through specially-obtained telescopic images for currently unknown objects in the Kuiper Belt. Along the way, they will also discover variable stars and asteroids. Ice Hunters is a Zooniverse citizen science project."
Zooniverse website: Ice Hunters: Find targets for the New Horizons probe https://www.zooniverse.org/project/icehunters?lang=en "Thanks to your hard work, we've sorted through all the available data and this project is now retired. "
A screenshot of the new citizen science project, Icehunters, produced by Southern Illinois University Edwardsville in collaboration with the New Horizons project and Zooniverse.
Ice Hunters 2011 and the New Horizons Mission- See more at: http://www.skyandtelescope.com/astronomy-news/icehunters-a-kuiper-belt-search/#sthash.McZ2Ochl.dpuf
The difference images used on Icehunters.org, were created by subtracting two telescopic wide field-images from each other .The image to the right shows blobs and streaks marked with a circle and an asterisk respectively. Blobs are Kuiper Belt objects, while streaks are asteroids in the main belt between Mars and Jupiter.
Intern B (Shweta Krishnan)- See more at: http://www.skyandtelescope.com/astronomy-news/icehunters-a-kuiper-belt-search/#sthash.McZ2Ochl.dpuf
IceHunters: A Kuiper Belt Search By: Shweta Krishnan | June 24, 2011 in Sky and Telescope http://www.skyandtelescope.com/astronomy-news/icehunters-a-kuiper-belt-search/
"Back in January 2006, NASA launched the New Horizons spacecraft to skim past Pluto and its moons and, perhaps, other cold worlds in the outer reaches of the solar system. New Horizons will fly by the dwarf planet in July 2015 and cruise through the heart of the Kuiper Belt from 2016 to 2020. Astronomers think the craft will have enough fuel to change course slightly and visit a few of the icy bodies there — if any happen to lie close enough to its trajectory.
This is where you come in. Imagine what you might feel if NASA decides to maneuver the craft toward a Kuiper Belt object you helped discover! That is the kind of excitement that the newest “Zooniverse” citizen science project, Icehunters, is hoping to generate.
The program was developed at Southern Illinois University in March by Pamela Gay and Cory Lehan. A beta version launched in May drew thousands of interested citizens and encouraged the team to take the site live on Tuesday. from images taken in 2004 and 2005 using the Subaru Telescope atop Mauna Kea in Hawaii and the Magellan Telescope in Chile. - See more at: http://www.skyandtelescope.com/astronomy-news/icehunters-a-kuiper-belt-search/#sthash.McZ2Ochl.dpuf- See more at: http://www.skyandtelescope.com/astronomy-news/icehunters-a-kuiper-belt-search/#sthash.McZ2Ochl.dpuf
Publication: 2011 HM102: Discovery of a High-Inclination L5 Neptune Trojan in the Search for a post-Pluto New Horizons Target,Parker+ 2012. http://arxiv.org/abs/1210.4549
SDSS Press Release Images: SEE YOU AGAIN IN 22,000 YEARS
Astronomers Find an Unusual New Denizen of the Solar System
August 18, 2008 http://www.astronomy.ohio-state.edu/~dhw/SDSS08/ssfigs.html
"Animation showing the detection of SQ372 by SDSS-II. Successive frames show images from the SDSS-II supernova survey taken on October 21, 23, and 28, 2006. SQ372 changes position as it moves in its orbit, while the positions of the stars, which are much more distant, stay fixed."
Sedna
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237670016737804583 posted by planetaryscience in
Chat http://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ0000v89?page=38
Talk: On the discovery and precovery of Trans-Neptunian Objects from SDSS images Nov 1 2014 by planetaryscience http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ000116c?page=1 "update: My observations for 136199 Eris, 90377 Sedna, and 1999 CL119 were accepted by the IAU and orbits subsequently updated. 2004 XR190, 79360, 2003 UB292, and 2011 GM27 still awaiting acceptance." another 20 http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ000116c?page=9&comment_id=55299b2940ead5450a000027
Limerick on the pronunciation of the ice world Makemake
There was a young fellow named Jake
Pronounced the ice world as "Make-make"
Then played some ice hockey
On rocky Mah-key Mah-key
On a methane and nitrogen lake.
By Budgieye
Planet Nine in BBC Stargazing Live 2017
moving objects seen in red, green blue, this is the minor planet Comacina.
https://www.zooniverse.org/projects/skymap/planet-9/talk/subjects/8469694
https://www.zooniverse.org/projects/skymap/planet-9/talk/793/243564https://www.zooniverse.org/projects/skymap/planet-9 run through BBC Stargazing Live 2017 images taken several weeks apart, in visual light.
Known objects discovered in the search https://www.zooniverse.org/projects/skymap/planet-9/talk/793/243564SkyMapper
The SkyMapper Southern Sky Survey is making a digital map of the southern hemisphere sky, much as the Sloan Digital Sky Survey (SDSS) did for the northern hemisphere. Alongside the Southern Sky Survey, SkyMapper is carrying out a search for supernovae and other transient astronomical objects. This survey covers a large area of the southern sky (2000 Square Degrees).
The telescope is housed in a dome that is 11.5m tall and 6.25m in diameter, located near the summit of Siding Spring Mountain, at The Australian National University's Siding Spring Observatory.
SkyMapper is observing the sky in a custom-made set of filters optimised for studying stars, allowing SkyMapper to select interesting objects for follow-up at other telescopes: extremely old, nearly metal-free stars; high-redshift quasars; and supernovae found shortly after the explosion.
Talk: Planet Nine , Planet X http://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0001udd?page=2&comment_id=56cdf5ac327fbb367c000186
Backyard Worlds: Planet 9
Help scan the realm beyond Neptune for brown dwarfs and planet nine.
https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9Blog https://blog.backyardworlds.org/
https://blog.backyardworlds.org/2017/03/01/getting-started-with-simbad/
https://blog.backyardworlds.org/2017/02/24/brown-dwarf-the-object-you-should-start-to-love/
https://blog.backyardworlds.org/2017/02/20/searches-for-planet-nine/
https://blog.backyardworlds.org/2017/02/19/fast-movers-are-they-planet-9/
https://blog.backyardworlds.org/2017/02/18/an-introduction-to-vizier/
https://blog.backyardworlds.org/2017/01/25/welcome/
Wiki: Wide-field Infrared Survey Explorer (WISE) is a NASA infrared-wavelength astronomical space telescope launched in December 2009,[3][4][5] and placed in hibernation in February 2011 when its transmitter turned off.[6] It was re-activated in 2013.[7] WISE discovered thousands of minor planets and numerous star clusters. Its observations also supported the discovery of the first Y Dwarf and Earth trojan asteroid. WISE performed an all-sky astronomical survey with images in 3.4, 4.6, 12 and 22 μm wavelength range bands, over ten months using a 40 cm (16 in) diameter infrared telescope in Earth orbit.[13] After its hydrogen coolant depleted, a four-month mission extension called NEOWISE was conducted to search for near-Earth objects such as comets and asteroids using its remaining capability https://en.wikipedia.org/wiki/Wide-field_Infrared_Survey_Explorer
The Pan-STARRS Moving Object Processing System http://iopscience.iop.org/article/10.1086/670337#artAbst has images of near-earth objects and artifacts.
Hubble images movement of Luhman 16AB, nearby brown dwarf binary system
Hubble applauds waltzing dwarfs https://www.nasa.gov/feature/goddard/2017/hubble-applauds-waltzing-dwarfs
RA: 162.312 DEC: -53.3183
WISE 1049−5319WISE J104915.57−531906.1
Posted
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Budgieye
moderator
8.4 comets https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
#cometThere are about 20 comets in the SDSS data.
Talk: Comet 67P/Churyumov-Gerasimenko by c_cld http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0001258?page=1&comment_id=546a3cf2415ac10fd1000397 dr6 image
Talk Collection: Comets! http://talk.galaxyzoo.org/#/collections/CGZL00004c maintained by Capella05 info at http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ0000vv1?page=1&comment_id=542b10d4ee1d26055c0004af
comet in SDSS
http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=588297864729067549
Forum OOTD: Wednesday, 29th February, 2012: SDSS comets (and a bit of a mystery)
http://www.galaxyzooforum.org/index.php?topic=279947.0
http://www.galaxyzooforum.org/index.php?topic=279947.msg587977#msg587977 comet scientist joins in with Publication:Detecting active comets in the SDSS Michael Solontoia et al 2010 http://www.astro.washington.edu/users/ivezic/SDSSReferences/Solontoi2010.pdf
http://www.galaxyzooforum.org/index.php?topic=279947.msg588899#msg588899 c_cld's list of comets
Forum OOTD: Friday, December 19, 2008. Comets by Lovethetropics http://www.galaxyzooforum.org/index.php?topic=273468.0 A nearly complete list of comets found in SDSS
Forum OOtD: Thursday 05th March 2009 - Lulin prompts more on comets !! by FermatsBrother http://www.galaxyzooforum.org/index.php?topic=274331.0
Forum thread : Comets http://www.galaxyzooforum.org/index.php?topic=437.0
Talk: Comet Lovejoy in DECam images https://talk.galaxyzoo.org/#/boards/BGZ0000008/discussions/DGZ0001ze5?page=1&comment_id=573ecb4d4d344100a5001de1
Backyard Worlds Talk: Something peculiar in the infrared https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9/talk/693/203009 https://irsa.ipac.caltech.edu/applications/finderchart/#id=Hydra_finderchart_finder_chart&RequestClass=ServerRequest&DoSearch=true&subsize=0.08333333400000001&thumbnail_size=medium&sources=DSS,SDSS,twomass,WISE&overlay_catalog=true&catalog_by_radius=true&sdss_radius=25&twomass_radius=25&wise_radius=25&one_to_one=none&UserTargetWorldPt=349.2860416666667;-32.27283333333333;EQ_J2000&SimpleTargetPanel.field.resolvedBy=nedthensimbad&dss_bands=poss1_blue,poss1_red,poss2ukstu_blue,poss2ukstu_red,poss2ukstu_ir&SDSS_bands=u,g,r,i,z&twomass_bands=j,h,k&wise_bands=1,2,3,4&projectId=finderchart&searchName=finder_chart&shortDesc=Finder%20Chart&isBookmarkAble=true&isDrillDownRoot=true&isSearchResult=true
DECaLS: possible comet in DECaLS
http://legacysurvey.org/viewer?ra=70.8791&dec=-42.5261&zoom=15&layer=des-dr1
Zooniverse website Comet Hunters
https://www.zooniverse.org/projects/mschwamb/comet-hunters/home
http://blog.comethunters.org/2015/12/16/comets-lurking-in-the-asteroid-belt/ December 16, 2015 by hhsieh00
http://blog.comethunters.org/2015/12/17/the-story-of-the-subaru-telescope/
http://blog.comethunters.org/2015/12/17/how-the-images-were-obtained-observing-at-subaru/ by Meg Schwamb
Comet Hunters featured in the most recent episode of one of the world's longest running TV shows, The Sky at Night June 2016
C/2014 R3 PANSTARRS
C/2014 R3 PANSTARRShttp://legacysurvey.org/viewer/cutout.jpg?ra=175.0031&dec=58.5987&layer=ls-dr67&pixscale=0.25
http://legacysurvey.org/viewer?ra=175.0030&dec=58.5985&layer=ls-dr67&zoom=13
CCD z 125508 CCD2, 80.1 sec (x,y ~ 3088,2803)
(mosaic/CP20170430/k4m_170501_040648_ooi_zd_v1.fits.fz [2])
(observed 2017-05-01 @ 04:06:48.000107)http://legacysurvey.org/viewer/cutouts/?ra=175.0071&dec=58.5997&layer=ls-dr67
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=C%2F2014 R3;old=0;orb=1;cov=0;log=0;cad=0#phys_par
Comet 41P (Tuttle-Giacobini-K)
http://legacysurvey.org//viewer/?ra=175.5178&dec=59.1103&layer=ls-dr67&zoom=10
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1268/1114145?comment=1830664
Comet identified as 246P/NEAT in Asteroid Zoo Talk
https://talk.asteroidzoo.org/#/subjects/AAZ0000qwxPosted
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Budgieye
moderator
8.5 Sun Moon Planets https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
for planets around other stars see 4.10 exoplanets http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4&comment_id=53d8b9ef0d43f77b9e000f9b
for our solar system see 8.3 asteroids, ice worlds, TransNeptunian Objects, Planet Nine https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
Sun
http://www.solarstormwatch.com/images/spot-and-track/landing-page-cme.jpg?1411987069) solar ejection approaching Earth, as seen from one of the STEREO spacecraft
Solar Stormwatch http://www.solarstormwatch.com/?utm_campaign=Homepage+Catalogue&utm_medium=Web&utm_source=Zooniverse+Home "Solar storms can go in all directions, but some are on a collision course with Earth. Here they’re a health hazard for astronauts and can damage satellites. On the plus side, they also spark the beautiful atmospheric reactions better known as the northern and southern lights, or aurora."
Sunspotter http://www.sunspotter.org/?utm_source=Zooniverse Home&utm_medium=Web&utm_campaign=Homepage Catalogue map sunspots
Moon
circle craters, identify boulder, find caves and caverns, Apollo landing sites
http://www.universetoday.com/73659/lro-takes-closer-look-at-moon-caves/ "lava tubes that have been discovered by LRO and the Kaguya spacecraft. These are deep holes on the moon that could open into vast underground tunnels, and could serve as a safe, radiation shielding habitats for future human lunar explorers"Moon Zoo http://www.moonzoo.org/?utm_source=Zooniverse Home&utm_medium=Web&utm_campaign=Homepage Catalogue map the Moon
Mars
Six fans from three sources on MarsPlanet Four http://www.planetfour.org/?utm_source=Zooniverse Home&utm_medium=Web&utm_campaign=Homepage Catalogue map Mars " The images on this site come from the HiRISE (High Resolution Imaging Science Experiment) camera on board the Mars Reconnaissance Orbiter. HiRISE can image Mars with resolutions of 0.3 m/pixel (about 1 foot), resolving objects below a meter across.
Why do you need our help?
There are far too many images for a group of scientists to get through alone and computers are just no good at detecting the features we are trying to mark. The human mind is far superior at analyzing images with the complexity of the Martian surface!HiRISE’s Beagle 2 Detective Story January 18, 2015 http://blog.planetfour.org/2015/01/18/hirises-beagle-2-detective-story/
by Meg Finding the crashed Mars Lander
Jupiter
Jupiter in infrared WISE images. It is blurred because it moves during imaging. http://irsa.ipac.caltech.edu/applications/finderchart/#&id=Hydra_finderchart_finder_chart&projectId=finderchart&UserTargetWorldPt=2.1625;-0.4208;EQ_J2000&subsize=0.195556&sources=DSS,SDSS,2MASS,IRIS,WISE&DoSearch=true
Neptune in unWISE
https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9/talk/subjects/9145283
Saturn in unwise https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9/talk/subjects/27641361
Pluto in unwise https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9/talk/694/1209199
Jupiter, Saturn, Uranus, Pluto in unwise https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9/talk/694/1209199Asteroids
find an asteroid in 4 sequential imagesAsteroid Zoo http://www.asteroidzoo.org/?utm_source=Zooniverse Home&utm_medium=Web&utm_campaign=Homepage Catalogue The Catalina Sky Survey "examines vast amounts of the sky very quickly and automatically, and therefore computer programs automatically reduce the data to find the asteroids in the images. These programs are very good at finding bright objects, but are not quite smart enough by themselves to detect the faint ones. Although, humans can look at the detections and validate the program's work. This is where you come in!"
Posted
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Budgieye
moderator
8.6 Just Chat, birthdays, greetings, news
https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8There have been a few of these thank you posters made, with thousands of names on them making up an image.
As well as the one that you have found,
Galaxy Zoo 1 2008
Blog: A Big Thanks to all our Collaborators! May 2008 http://blog.galaxyzoo.org/2008/05/28/a-big-thanks-to-all-our-collaborators/ names of over 100,000 people on the poster..with lin
there are
Galaxy Zoo 2 2010
FIND YOUR NAME IN THIS LIST* Project Volunteers The science of Galaxy Zoo is made possible by the work of our volunteers; those who gave us permission to publish their names are included. It may be your avatar name, or your real name if you gave permission to use it. http://authors.galaxyzoo.org/authors.html#galaxyzoo
http://zooniverse-resources.s3.amazonaws.com/advent-calendar-2010/GalaxyZoo2Poster_900.jpg
FIND YOUR NAME IN THIS IMAGE Galaxy Zoo 2 Author Poster The Advent Calendar poster shows the Sombrero Galaxy (M104) made up of the 51,000 names of Galaxy Zoo 2 volunteers who gave permission for us to display their names
http://adsabs.harvard.edu/abs/2010MNRAS.406..342B
Merger Zoo 2010
http://galaxyzooblog.files.wordpress.com/2010/12/mergersposter_900.jpg?w=479
Blog: Mergers Author Poster Dec 2010 http://blog.galaxyzoo.org/2010/12/23/mergers-author-poster/ A poster of a merging galaxy with the names of every citizen scientist who helped with Merger Zoo.
Supernova Zoo 2010
Blog: Galaxy Zoo: Supernova Author Poster http://blog.galaxyzoo.org/2010/12/04/galaxy-zoo-supernova-author-poster/ 13,400 individuals, who have taken part in the Supernova project to date, merged into an amazing image of the famous supernova 1987a.
Forum OOTD: Monday 7 July 2014: Happy 7th birthday Zoo! by Hanny http://www.galaxyzooforum.org/index.php?topic=281958.msg661893#msg661893 What are our highlights according to you?
Forum: Love Bubble With Ego (Valentine heart nebula) http://www.galaxyzooforum.org/index.php?topic=281534.0
Forum: Thursday, January 3rd, 2013: The Celebration Continues... Zeus2007 http://www.galaxyzooforum.org/index.php?topic=280575.0
Forum: Thursday November 22nd 2012: Break a (Turkey) Leg! by egalaxy http://www.galaxyzooforum.org/index.php?topic=280516.0
Patrick Moore
Forum: Sunday 9th December 2012: Sir Patrick Moore http://www.galaxyzooforum.org/index.php?topic=280545.0 "Sir Patrick, you'll be very much missed - thank you for all the stars."
Forum: Memorial thread for Sir Patrick Moore http://www.galaxyzooforum.org/index.php?topic=280544.0
Forum: Galaxy Zoo Get-Together: Farthings, Sir Patrick Moore's house, 8th November, 3pm by Alice http://www.galaxyzooforum.org/index.php?topic=272207.msg171313#msg171313
Talk: Heartshape galaxies and mergers by Ine Theunissen
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1270/1114495?comment=1823575&page=1Posted
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Budgieye
moderator
8.7 jokes, limericks https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
Zooniverse website: Listen to Zooniverse http://eatyourgreens.github.io/listen-to-zooniverse/ Music plays when a classification is done.
Recently, during one of our regular "hack days", Zooniverse lead
front-end developer Jim O'Donnell created 'Listen to the Zooniverse'.
Based on a similar page for Wikipedia edits, it allows you to listen
to the classifications and Talk comments as they come in from all
across the Zooniverse. It's actually very relaxing (I have it on while
I work most days now), and it's great to think that every time you
hear a sound, that's a brand new contribution to research! Listen
along now at eatyourgreens.github.io/listen-to-zooniversehttp://eatyourgreens.github.io/listen-to-zooniverse/ https://daily.zooniverse.org/2016/06/20/listen-to-the-zooniverse/
Forum OOTD: Jan 1 2014 Happy New Year with a loopy galaxy by Budgieye http://www.galaxyzooforum.org/index.php?topic=281547.0
Forum: April 1, 2011 A really cool star! http://www.galaxyzooforum.org/index.php?topic=279059.msg539585#msg539585 A brown dwarf with surface temperature of a cup of coffee.
Forum: April 1, 2012 Two spiral galaxies walk into a bar... by Budgieye http://www.galaxyzooforum.org/index.php?topic=280029.msg591131#msg591131
Using the query box to make arrows to point to objects
Call up any dr10 Finding Chart eg http://skyserver.sdss.org/dr10/en/tools/chart/image.aspx?ra=132.74897009049&dec=11.6561555350173&width=512&height=512&scale=0.4
Paste ra 230.199, dec -2.410, scale 0.4, width 512, height 512
Press "Get image" and you get a big red star that has no ObjID number.
Copy into the "Use query to mark objects" box
ra,dec 230.198, -2.411 230.192, -2.411 230.195, -2.414 230.197, -2.418 230.196, -2.419 230.195, -2.420 230.194, -2.419 230.193, -2.418Click "Get Image" and see what appears.
Blog: Fibers and Voorwerpjes November 18, 2014 by billkeel http://blog.galaxyzoo.org/2014/11/18/fibers-and-voorwerpjes/ Swimming in data as we sift for knowledge, I am reminded of this anonymous computer error message in haiku form:
Out of memory.
We wish to hold the whole sky
but we never will.
"
Forum: Zoo limericks http://www.galaxyzooforum.org/index.php?topic=278070.0
Forum: Astronomically Awful Jokes!!!!! http://www.galaxyzooforum.org/index.php?topic=2214.0
Forum: Music To Classify Galaxies To ...http://www.galaxyzooforum.org/index.php?topic=274175.0
Forum OOTD : Wednesday 23rd December 2009: Christmas Quiz http://www.galaxyzooforum.org/index.php?topic=276963.msg410503#msg410503
Blog: Black hole hunter finds quarry! October 1, 2010 http://blog.galaxyzoo.org/2010/10/01/black-hole-hunter-finds-quarry/ The care and feeding of black holes in galaxies has been a major focus of Zookeeper Kevin’s work. Checking his research publications shows at least a dozen journal papers dealing with black holes, whether seen actively accreting and shining as active galactic nuclei, or lurking quietly in less spectacular galaxies. Now I can reveal that, thanks to new technology, black hole hunting has become dramatically easier. Witness this documentation from a site visit – "
Blog: Cooking Galaxies January 29, 2011 by Alice http://blog.galaxyzoo.org/2011/01/29/cooking-galaxies/
Blog: Zoo Limericks Dec 2010 http://blog.galaxyzoo.org/2010/12/17/zoo-limericks/
Blog: Galacticats? April 1 2009 http://blog.galaxyzoo.org/2009/04/01/galacticats/ Seeing features of galaxies in cats
Blog: A startling discovery in the latest paper from the Zoo April 1, 2009 by Marven F. Pedbost and Trillean Pomalgu, http://blog.galaxyzoo.org/2009/04/01/the-latest-paper-from-the-zoo/ We have identified a new class of galaxy cluster using data from the Galaxy Zoo project. These clusters are rare, and thus have apparently gone unnoticed before, despite their unusual properties. They appear especially anomalous when the morphological properties of their component galaxies are considered. Their identification therefore depends upon the visual inspection of large numbers of galaxies, a feat which has only recently been made possible by Galaxy Zoo, together with the Sloan Digital Sky Survey. We present the basic properties of our cluster sample, and discuss possible formation scenarios and implications for cosmology. http://arxiv.org/pdf/0903.5377v1.pdf
Pinocchio AHZ40005e6Forum: Wednesday, 1st February 2012: A Galactic Salute to Carlo Collodi (Pinocchio too) by JeanTate http://www.galaxyzooforum.org/index.php?topic=279883.0
Smiley facehttp://zoo-hst-inv.s3.amazonaws.com/20181913.jpg http://www.galaxyzooforum.org/index.php?board=4.150
Forum: Monday 7th October - Galilieo's tomb by PeterD http://www.galaxyzooforum.org/index.php?topic=281412.0 seen on a trip to Florence.
Forum: Dec 21, 2012 Galactic alignment, or End Of The World day, again. by Budgieye http://www.galaxyzooforum.org/index.php?topic=280566.0 either a galactic jet from the black hole in the centre of the Milky Way galaxy will hit Earth, with Earth being sucked into the black hole, earthquakes, various unknown planets hitting earth, and government conspiracy cover-up or, we experience spiritual enlightenment, take your pick.
Forum: Sunday 20th January 2013: this really is a zoo by Alice http://www.galaxyzooforum.org/index.php?topic=280598.0 pictures galaxies which look like animals from Snapshot Serengeti
Forum Wednesday, 11th July, 2012: Animals and Galaxies by JeanTate http://www.galaxyzooforum.org/index.php?topic=280267.0 The Mice NGC 4676 NGC4676, The Spider (UGC 5829, DDO 84) UGC5829, Papillon (IC 708) IC708, Bear's Claw, or Paw (NGC 2537) NGC2537, The Whale, sometimes also called the Herring Galaxy (NGC 4631), NGC4631 featured in The Hockey Stick and the Whale OOTD
Forum: Sunday 9th September 2012: a pipe and a fluorescent scarf by Alice http://www.galaxyzooforum.org/index.php?topic=280383.0 a post AlexandredOr made announcing the Pipe Nebula.
Forum: (Very late) Sunday 28th October 2012: Scary Spirals by Alice http://www.galaxyzooforum.org/index.php?topic=280481.0 reminiscent of a Fibonacci spiral -
Talk NGC 6745 http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ1006a0g NGC6745
Forum: Wednesday, 8th August, 2012: Oddballs, or Perhaps Not by JeanTate http://www.galaxyzooforum.org/index.php?topic=280325.0 a selection of puzzling objects
Forum: Monday 6th August 2012: Hanny's Voorwerp is a cloud! by Hanny http://www.galaxyzooforum.org/index.php?topic=280322.0 a wordcloud of keywords used in our papers on Hanny's Voorwerp so far
Snowflakes they are like.
Classify as best you can.
No two are the same.https://talk.galaxyzoo.org/#/subjects/AGZ000cjm3
http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=142.56327260913204&dec=4.144199235197301
Roses are red but can be blue if at great speed they come towards you. At one hundred million meters per second red becomes blue in visual spectrum. Rose breeders seek a true blue rose. Hybrids still are purple and mauve. On rose seller’s shelves soon you'll find them: Rosa “Blueshift”, a fast-moving item.By Christine Macmillan and Douglas Robertson 2012
Forum: Thurs April 19 2012 Roses are red, but can be blue... http://www.galaxyzooforum.org/index.php?topic=280077.msg601111#msg601111
Twitter https://twitter.com/penguingalaxy/status/192996187337523200 retweeted by Nature and 60 retweets
"The Galaxy Song" by Monty Python http://www.montypython.net/scripts/galaxy.php https://en.wikipedia.org/wiki/Galaxy_Song
Fiddler Crab Galaxy
https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1267/1191071
http://www.legacysurvey.org/viewer?ra=183.69099155486344&dec=13.975113832531175&zoom=15&layer=decals-dr5Posted
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Budgieye
moderator
8.8 Our Astrophotography https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
http://blogs.zooniverse.org/galaxyzoo/files/2011/01/Galaxy-Zoo-365-2-1024x742.jpg
Blog: Astrophotography 365 – Completed! by Jules and Zooniverse http://blog.galaxyzoo.org/2011/01/07/astrophotography-365-completed/
Forum thread: Zooties cosmic pictures by AlexandredOr http://www.galaxyzooforum.org/index.php?topic=270643.0
Blog: A mixed night http://blog.galaxyzoo.org/2008/04/28/a-mixed-night/ "Just outside the door a few hours ago was the tail of Scorpius and its neighbouring constellation Sagittarius. Neither gets very high from home (parts of Scorpius don’t even rise), but there they were. To the left was Jupiter, ..."
Blog: Observing Run: Raw Data versus Finished Product May 19, 2013 by Brooke Simmons http://blog.galaxyzoo.org/2013/05/19/observing-run-raw-data-versus-finished-product/ explanation of dithering in astrophotography and cleaning up of data
Blog: No place like dome http://blog.galaxyzoo.org/2008/04/29/no-place-like-dome/ dome roots that aren't dome shaped
Blog: Dust gets everywhere by Bill Keel http://blog.galaxyzoo.org/2008/04/30/dust-gets-everywhere/ manifestation of dust – the zodiacal light,
Forum thread: VCC catalogue http://www.galaxyzooforum.org/index.php?topic=279880.0 the Virgo Cluster Catalogue.
Forum thread: Messier objects by Karma http://www.galaxyzooforum.org/index.php?topic=274553.0 Galaxies visible in small telescopes also http://www.galaxyzooforum.org/index.php?topic=280086.0
Forum: Thursday 13 December 2012: Jupiter then and now by jules http://www.galaxyzooforum.org/index.php?topic=280553.0
Forum: Sunday 26th August 2012: Wink at the Moon by Alice http://www.galaxyzooforum.org/index.php?topic=280362.0 some Zooite Moon pictures.
Posted
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Budgieye
moderator
8.9 Artistic images of galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
Talk: Pure Art discussion http://talk.galaxyzoo.org/#/boards/BGZ0000002/discussions/DGZ0000vlc
Forum OOTD: Thursday 9th September 2010: Creative Zooism by Alice
Forum: Pure art thread http://www.galaxyzooforum.org/index.php?topic=270863.msg147196#msg147196
Forum: Just draw me a sheep http://www.galaxyzooforum.org/index.php?topic=275380.msg332195#msg332195
Forum: Blues Galllery http://www.galaxyzooforum.org/index.php?topic=279187.0
http://talk.spacewarps.org/#/subjects/ASW000057k
Forum thread: The best Stars! http://www.galaxyzooforum.org/index.php?topic=270719.2745 pretty images of overexposed stars
Blog: From data to art January 17, 2011 by Zolt Levay http://blog.galaxyzoo.org/2011/01/17/from-data-to-art/ How Hubble images are processed.
http://talk.galaxyzoo.org/#/subjects/AGZ00081nk
http://talk.galaxyzoo.org/#/subjects/AGZ00081qb
Forum: Wednesday, 28th November, 2012: Tri-Colour Stars by JeanTate http://www.galaxyzooforum.org/index.php?topic=280526.0
Forum: Thursday 11th December 2008. Story part 2. by AlexandredOr http://www.galaxyzooforum.org/index.php?topic=273422.0
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Budgieye
moderator
8.10 Fun images of galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=8
Celestial Seahorse, Heavenly Hippocambushttps://zooniverse-static.s3.amazonaws.com/www.galaxyzoo.org/subjects/standard/5857c4ddd369fd0040001b43.png
https://talk.galaxyzoo.org/#/subjects/AGZ000dpbdhttp://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=129.7108753&dec=1.40502449
http://blog.sdss.org/wp-content/uploads/2014/08/klaenemount-300x225.jpg
SDSS website: SDSS Plates The SDSS has used thousands of plug plates in its fourteen year history. These are large aluminium plates into which tiny holes are drilled. Each hole has an optical fibre plugged into it (by hand by our plate pluggers). Each hole corresponds to the sky location where there is an object (a star or a galaxy) which SDSS wants to measure a spectrum for. During SDSS spectroscopic observations, between six and nine of these are used every night. Each plate is custom drilled for a special part of the sky (about the size of your palm stretched out at arms length), and once all the data is collected for the astronomical objects in that plate, it becomes surplus to requirements.All SDSS Collaboration members can request that used plates be sent to them (contact your Collaboration Council Representative for assistance with this). This has resulted in some interesting uses for the leftover plates across our diverse collaboration. http://blog.sdss.org/2014/09/19/sdss-plates/
Galaxy Zoo logohttp://talk.galaxyzoo.org/#/subjects/AGZ0001iwy Galaxy Zoo logo? or null symbol ∅ RA: 268.6807, DEC: 15.7761
Galaxy Zoo logohttp://talk.galaxyzoo.org/#/subjects/AGZ00084gr RA: 53.1288662, DEC: -27.656587
Blog: 600 Most-Galaxified Words http://blog.galaxyzoo.org/2012/12/13/600-most-galaxified-words/ tool, which allows you to write in an alphabet of Galaxy Zoo galaxies. Since that time you have created 320,000 messages, http://writing.galaxyzoo.org/
applause for words written with galaxiesBlog: As promised – photos! January 2009 http://blog.galaxyzoo.org/2009/01/07/as-promised-photos/ Kevin with his opening slide, which generated some applause from the audience
Forum: Thursday 26th November: Happy birthday ZookeeperChris! http://www.galaxyzooforum.org/index.php?topic=276781.msg400254#msg400254 writing with galaxies
Galactic Alphabet Repository :: @ABCDEFGHIJKLMNO http://www.galaxyzooforum.org/index.php?topic=9682.msg99238#msg99238
Galactic Alphabet Repository :: PQRSTUVWXYZ[]^_ http://www.galaxyzooforum.org/index.php?topic=9683.msg99240#msg99240
Galactic Alphabet Repository :: !"#$%&'()*+,-./ http://www.galaxyzooforum.org/index.php?topic=9680.msg99236#msg99236
Galactic Alphabet Repository :: 0123456789:; less than, greater than equals ? http://www.galaxyzooforum.org/index.php?topic=9681.msg99237#msg99237
Galactic Alphabet Repository :: `abcdefghijklmno http://www.galaxyzooforum.org/index.php?topic=9685.msg99242#msg99242
Galactic Alphabet Repository :: pqrstuvwxyz{|}~ http://www.galaxyzooforum.org/index.php?topic=9686.msg99244#msg99244
Blog: Win a Signed Comic Book September 7, 2010 http://blog.galaxyzoo.org/2010/09/07/win-a-signed-comic-book/ This scene might have happened in the real world as well as the comic – except for one thing. What is it?
Blog: Comic moments with Hanny's Voorwerp and Galaxy Zoo September 9, 2010
by The Zooniverse from Rain Director – Space Track"Dr. Keel gives a great rundown of the events of the Hanny & the Mystery of Voorwerp comic. .. the fun people were having. Beyond the lovely Pam Gay co-hosting the event, Dr. Keel detailing the science and the wonderful Hanny via Skype acting as though this were the most common thing in the world, the young artists, Elea Braasch and Chris Spangler were obviously excited to be there"Blog: A Comic Voorwerp August 20, 2010 by Pamela, Hanny, Bill, Kelly, Elea and Chris http://blog.galaxyzoo.org/2010/08/20/a-comic-voorwerp/
Blog: A Comic Voorwerp August 20, 2010 by Pamela, Hanny, Bill, Kelly, Elea and Chris http://blog.galaxyzoo.org/2010/08/20/a-comic-voorwerp/
Blog: From Voorwerp to webcomic – the quest continues http://blog.galaxyzoo.org/2010/07/03/from-voorwerp-to-webcomic-the-quest-continues/
It came from the SDSS: The VoorwerpBlog: Voorwerp Web-Comic: Authors meeting at CONvergenceMay 13, 2010 by Pamela http://blog.galaxyzoo.org/2010/05/13/voorwerp-web-comic-authors-meeting-at-convergence/ "And the STScI agrees with us. They’ve funded the creation of a digitized comic book (a web comic) to tell the story of Hanny’s discovery of the Voorwerp "
late spiralBlog: An Extra-galactic Halloween October 31, 2010 by Kevin http://blog.galaxyzoo.org/2010/10/31/an-extra-galactic-halloween/ illustrating Hubble's tuning fork classification of galaxies
Blog: Happy Valentine’s Day from Galaxy Zoo by karenlmasters http://blog.galaxyzoo.org/2014/02/14/happy-valentines-day-from-galaxy-zoo/
Valentine's dayhttp://talk.galaxyzoo.org/#/subjects/AGZ00060rv
Talk Discussion: [Valentine 's day ]http://talk.galaxyzoo.org/#/boards/BGZ0000004/discussions/DGZ1006d4g?page=1&comment_id=5440d2905712301539003014
Shape of these merging galaxies http://daily.zooniverse.org/2014/08/01/amazing-galaxy-of-the-week-what-do-you-see/
Merger Zoo A Valentine's Day ChallengeBlog: A Valentine's Day Challenge February 14, 2010 by John http://blog.galaxyzoo.org/2010/02/14/a-valentines-day-challenge/
"This is the first example that I have ever seen of two ring galaxies created in the same collision. It seems like creating this type of system should be possible, but we aren’t sure how to create models that closely reproduce this beautiful system. As always, we need your help!"Blog: Galaxy drumstick, anyone? by Kyle Willett November 2013
Blog: Galaxy Zoo Top Trumps! April 19, 2011 by The Zooniverse http://blog.galaxyzoo.org/2011/04/19/gz-top-trumps/ "Now we’d like to make a Galaxy pack, and we’d like your help! We think galaxies are a perfect theme, and we should be able to design a pack that is fun to play and through which people can learn a little bit about the amazing objects in the Zoo"
Forum: Thursday 25 December 2008: CHRISTMAS DAY!http://www.galaxyzooforum.org/index.php?topic=273504.msg241865#msg241865
Forum the Manta Ray galaxy http://www.galaxyzooforum.org/index.php?topic=7294.0
T-shirtBlog: Galaxy Zoo Shop is open March 2009 http://blog.galaxyzoo.org/2009/03/14/galaxy-zoo-shop-is-open/ T-shirts
Blog: A perfect woollen gift for the SEVENTH anniversary http://blog.galaxyzoo.org/2014/07/11/a-perfect-woollen-gift-for-the-seventh-anniversary/ knitted logo, galaxies and planets
science fiction moviehttps://talk.galaxyzoo.org/#/subjects/AGZ000aqfv
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Rick_N.
This is an outstanding thread!
Posted
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Budgieye
moderator
Q 😃 it will never be finished!
Please make sure I include all your pea threads. Which reminds me to include Wikipedia too.
Posted
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by
Budgieye
moderator
Image Gallery of Large Galaxies several hundred labelled galaxies of IC, NGC and UGC in the Blanco-4m legacy survey
http://portal.nersc.gov/project/cosmo/data/legacysurvey/dr2/gallery/
CGCG49-52 IC1063 IC1102 IC1105 IC1149
CGCG49-52 IC1063 IC1102 IC1105 IC1149
IC1169 IC1196 IC1197 IC1199 IC1206
IC1169 IC1196 IC1197 IC1199 IC1206
IC1361 IC1365 IC1368 IC1401 IC1411
IC1361 IC1365 IC1368 IC1401 IC1411
IC1455 IC1507 IC2239 IC2435 IC2486
IC1455 IC1507 IC2239 IC2435 IC2486
IC3391 IC3473 IC3615 IC494 IC5090
IC3391 IC3473 IC3615 IC494 IC5090
IC523 IC5287 IC536 IC560 IC588
IC523 IC5287 IC536 IC560 IC588
IC851 IC962-MCG2-36-2 MCG-1-57-21 MCG-1-7-13 MCG0-56-13
IC851 IC962-MCG2-36-2 MCG-1-57-21 MCG-1-7-13 MCG0-56-13
MCG0-57-2 MCG0-60-58 MCG1-54-3 MCG2-35-24 MCG3-32-46
MCG0-57-2 MCG0-60-58 MCG1-54-3 MCG2-35-24 MCG3-32-46
MCG3-41-90 MCG5-20-11 MCG5-25-9 NGC2512 NGC2535
MCG3-41-90 MCG5-20-11 MCG5-25-9 NGC2512 NGC2535
NGC2538 NGC2572 NGC2592 NGC2598 NGC2607
NGC2538 NGC2572 NGC2592 NGC2598 NGC2607
NGC2620 NGC2622 NGC2623 NGC2628 NGC2723
NGC2620 NGC2622 NGC2623 NGC2628 NGC2723
NGC2735 NGC2750 NGC2824 NGC2862 NGC3209
NGC2735 NGC2750 NGC2824 NGC2862 NGC3209
NGC3720 NGC3821 NGC3840 NGC3886 NGC3919
NGC3720 NGC3821 NGC3840 NGC3886 NGC3919
NGC4045 NGC4061-NGC4065 NGC4075 NGC4116 NGC4155
NGC4045 NGC4061-NGC4065 NGC4075 NGC4116 NGC4155
NGC4158 NGC4204 NGC4293 NGC4336 NGC4344
NGC4158 NGC4204 NGC4293 NGC4336 NGC4344
NGC4394 NGC4493 NGC4539 NGC4561 NGC4635
NGC4394 NGC4493 NGC4539 NGC4561 NGC4635
NGC5202 NGC5505 NGC5550 NGC5587 NGC5613
NGC5202 NGC5505 NGC5550 NGC5587 NGC5613
NGC5614 NGC5646 NGC5758 NGC5839 NGC5845
NGC5614 NGC5646 NGC5758 NGC5839 NGC5845
NGC5846 NGC5848 NGC5864 NGC5868 NGC5887
NGC5846 NGC5848 NGC5864 NGC5868 NGC5887
NGC5936 NGC5957 NGC5984 NGC5990 NGC6007
NGC5936 NGC5957 NGC5984 NGC5990 NGC6007
NGC6012 NGC6014 NGC6017 NGC6036 NGC6063
NGC6012 NGC6014 NGC6017 NGC6036 NGC6063
NGC6081 NGC6092 NGC6106 NGC6132 NGC6364
NGC6081 NGC6092 NGC6106 NGC6132 NGC6364
NGC6372 NGC7040 NGC7047 NGC7069 NGC7077
NGC6372 NGC7040 NGC7047 NGC7069 NGC7077
NGC7102 NGC7164 NGC7181 NGC7182 NGC7189
NGC7102 NGC7164 NGC7181 NGC7182 NGC7189
NGC7198 NGC7215 NGC7222 NGC7364 NGC7391
NGC7198 NGC7215 NGC7222 NGC7364 NGC7391
NGC7396 NGC7398 NGC7428 NGC7458 NGC7589
NGC7396 NGC7398 NGC7428 NGC7458 NGC7589
NGC7603 NGC7629 NGC7667 NGC7684 NGC7693
NGC7603 NGC7629 NGC7667 NGC7684 NGC7693
NGC7716 NGC7738 NGC7739 NGC7746 NGC7787
NGC7716 NGC7738 NGC7739 NGC7746 NGC7787
PGC70104 UGC10000 UGC10005 UGC10009 UGC10014
PGC70104 UGC10000 UGC10005 UGC10009 UGC10014
UGC10025 UGC10026 UGC10027 UGC10029 UGC10041
UGC10025 UGC10026 UGC10027 UGC10029 UGC10041
UGC10068 UGC10077 UGC10082 UGC10130 UGC10131
UGC10068 UGC10077 UGC10082 UGC10130 UGC10131
UGC10137 UGC10158 UGC10172 UGC10184 UGC10203
UGC10137 UGC10158 UGC10172 UGC10184 UGC10203
UGC10213 UGC10216 UGC10225 UGC10238 UGC10249
UGC10213 UGC10216 UGC10225 UGC10238 UGC10249
UGC10327 UGC10337 UGC10373 UGC10375 UGC10384
UGC10327 UGC10337 UGC10373 UGC10375 UGC10384
UGC10414 UGC10416 UGC10435 UGC10463 UGC10545
UGC10414 UGC10416 UGC10435 UGC10463 UGC10545
UGC10808 UGC10842 UGC10866 UGC10879 UGC10894
UGC10808 UGC10842 UGC10866 UGC10879 UGC10894
UGC10909 UGC11695 UGC11714 UGC11723 UGC11724
UGC10909 UGC11695 UGC11714 UGC11723 UGC11724
UGC11725 UGC11733 UGC11740 UGC11765 UGC11773
UGC11725 UGC11733 UGC11740 UGC11765 UGC11773
UGC11782 UGC11789 UGC11790 UGC11792 UGC11814
UGC11782 UGC11789 UGC11790 UGC11792 UGC11814
UGC11816 UGC11825 UGC11827 UGC11853 UGC11863
UGC11816 UGC11825 UGC11827 UGC11853 UGC11863
UGC11982 UGC12068 UGC12114 UGC12151 UGC12208
UGC11982 UGC12068 UGC12114 UGC12151 UGC12208
UGC12295 UGC12336 UGC12346 UGC12348 UGC12452
UGC12295 UGC12336 UGC12346 UGC12348 UGC12452
UGC12479 UGC12492 UGC12503 UGC12521 UGC12589
UGC12479 UGC12492 UGC12503 UGC12521 UGC12589
UGC12635 UGC12656 UGC12659 UGC12661 UGC12685
UGC12635 UGC12656 UGC12659 UGC12661 UGC12685
UGC12690 UGC12709 UGC12729 UGC12739 UGC12769
UGC12690 UGC12709 UGC12729 UGC12739 UGC12769
UGC12774 UGC12810 UGC12857 UGC3916 UGC3939
UGC12774 UGC12810 UGC12857 UGC3916 UGC3939
UGC3960 UGC3995 UGC4038 UGC4135 UGC4208
UGC3960 UGC3995 UGC4038 UGC4135 UGC4208
UGC4251 UGC4253 UGC4254 UGC4269 UGC4341
UGC4251 UGC4253 UGC4254 UGC4269 UGC4341
UGC4346 UGC4364 UGC4381 UGC4418 UGC4431
UGC4346 UGC4364 UGC4381 UGC4418 UGC4431
UGC4439 UGC4450 UGC4464 UGC4542 UGC4575
UGC4439 UGC4450 UGC4464 UGC4542 UGC4575
UGC4597 UGC4602 UGC4624 UGC4626 UGC4638B
UGC4597 UGC4602 UGC4624 UGC4626 UGC4638B
UGC4640 UGC4651 UGC4684 UGC4722 UGC4745
UGC4640 UGC4651 UGC4684 UGC4722 UGC4745
UGC4746 UGC4748 UGC4764 UGC4774 UGC4802
UGC4746 UGC4748 UGC4764 UGC4774 UGC4802
UGC4804 UGC4845 UGC4857 UGC4902 UGC4955
UGC4804 UGC4845 UGC4857 UGC4902 UGC4955
UGC4957 UGC4965 UGC4994 UGC5027 UGC5094
UGC4957 UGC4965 UGC4994 UGC5027 UGC5094
UGC5129 UGC5299 UGC5377 UGC5638 UGC5713
UGC5129 UGC5299 UGC5377 UGC5638 UGC5713
UGC5830 UGC6252 UGC6697 UGC6881 UGC7049
UGC5830 UGC6252 UGC6697 UGC6881 UGC7049
UGC7133 UGC7148 UGC7237 UGC7263 UGC7280
UGC7133 UGC7148 UGC7237 UGC7263 UGC7280
UGC7331 UGC7370 UGC7396 UGC7697 UGC8067
UGC7331 UGC7370 UGC7396 UGC7697 UGC8067
UGC8238 UGC8448 UGC8473 UGC9002 UGC9044
UGC8238 UGC8448 UGC8473 UGC9002 UGC9044
UGC9221-UGC9222 UGC9224 UGC9243 UGC9273 UGC9279
UGC9221-UGC9222 UGC9224 UGC9243 UGC9273 UGC9279
UGC9288 UGC9367 UGC9491 UGC9659 UGC9667
UGC9288 UGC9367 UGC9491 UGC9659 UGC9667
UGC9694 UGC9732 UGC9744 UGC9746 UGC9751
UGC9694 UGC9732 UGC9744 UGC9746 UGC9751
UGC9757 UGC9758 UGC9781 UGC9785 UGC9787
UGC9757 UGC9758 UGC9781 UGC9785 UGC9787
UGC9808 UGC9889 UGC9901 UGC9919 UGC9941
UGC9808 UGC9889 UGC9901 UGC9919 UGC9941
UGC9945 UGC9951 UGC9953 UGC9960 UGC9962
UGC9945 UGC9951 UGC9953 UGC9960 UGC9962
UGC9968 UGC9976 UGC9980 UGC9990 UGC9991
UGC9968 UGC9976 UGC9980 UGC9990 UGC9991Posted
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by
Budgieye
moderator
Image Gallery of Large Galaxies
http://portal.nersc.gov/project/cosmo/data/legacysurvey/dr4/gallery/
Color mosaics generated using trilogy.py. The white bar represents 30 arcsec.
CGCG49-52 IC1063 IC1102 IC1105 IC1149
CGCG49-52 IC1063 IC1102 IC1105 IC1149
IC1169 IC1196 IC1197 IC1199 IC1206
IC1169 IC1196 IC1197 IC1199 IC1206
IC1361 IC1365 IC1368 IC1401 IC1411
IC1361 IC1365 IC1368 IC1401 IC1411
IC1455 IC1507 IC2239 IC2435 IC2486
IC1455 IC1507 IC2239 IC2435 IC2486
IC3391 IC3473 IC3615 IC494 IC5090
IC3391 IC3473 IC3615 IC494 IC5090
IC523 IC5287 IC536 IC560 IC588
IC523 IC5287 IC536 IC560 IC588
IC851 IC962-MCG2-36-2 MCG-1-57-21 MCG-1-7-13 MCG0-56-13
IC851 IC962-MCG2-36-2 MCG-1-57-21 MCG-1-7-13 MCG0-56-13
MCG0-57-2 MCG0-60-58 MCG1-54-3 MCG2-35-24 MCG3-32-46
MCG0-57-2 MCG0-60-58 MCG1-54-3 MCG2-35-24 MCG3-32-46
MCG3-41-90 MCG5-20-11 MCG5-25-9 NGC2512 NGC2535
MCG3-41-90 MCG5-20-11 MCG5-25-9 NGC2512 NGC2535
NGC2538 NGC2572 NGC2592 NGC2598 NGC2607
NGC2538 NGC2572 NGC2592 NGC2598 NGC2607
NGC2620 NGC2622 NGC2623 NGC2628 NGC2723
NGC2620 NGC2622 NGC2623 NGC2628 NGC2723
NGC2735 NGC2750 NGC2824 NGC2862 NGC3209
NGC2735 NGC2750 NGC2824 NGC2862 NGC3209
NGC3720 NGC3821 NGC3840 NGC3886 NGC3919
NGC3720 NGC3821 NGC3840 NGC3886 NGC3919
NGC4045 NGC4061-NGC4065 NGC4075 NGC4116 NGC4155
NGC4045 NGC4061-NGC4065 NGC4075 NGC4116 NGC4155
NGC4158 NGC4204 NGC4293 NGC4336 NGC4344
NGC4158 NGC4204 NGC4293 NGC4336 NGC4344
NGC4394 NGC4493 NGC4539 NGC4561 NGC4635
NGC4394 NGC4493 NGC4539 NGC4561 NGC4635
NGC5202 NGC5505 NGC5550 NGC5587 NGC5613
NGC5202 NGC5505 NGC5550 NGC5587 NGC5613
NGC5614 NGC5646 NGC5758 NGC5839 NGC5845
NGC5614 NGC5646 NGC5758 NGC5839 NGC5845
NGC5846 NGC5848 NGC5864 NGC5868 NGC5887
NGC5846 NGC5848 NGC5864 NGC5868 NGC5887
NGC5936 NGC5957 NGC5984 NGC5990 NGC6007
NGC5936 NGC5957 NGC5984 NGC5990 NGC6007
NGC6012 NGC6014 NGC6017 NGC6036 NGC6063
NGC6012 NGC6014 NGC6017 NGC6036 NGC6063
NGC6081 NGC6092 NGC6106 NGC6132 NGC6364
NGC6081 NGC6092 NGC6106 NGC6132 NGC6364
NGC6372 NGC7040 NGC7047 NGC7069 NGC7077
NGC6372 NGC7040 NGC7047 NGC7069 NGC7077
NGC7102 NGC7164 NGC7181 NGC7182 NGC7189
NGC7102 NGC7164 NGC7181 NGC7182 NGC7189
NGC7198 NGC7215 NGC7222 NGC7364 NGC7391
NGC7198 NGC7215 NGC7222 NGC7364 NGC7391
NGC7396 NGC7398 NGC7428 NGC7458 NGC7589
NGC7396 NGC7398 NGC7428 NGC7458 NGC7589
NGC7603 NGC7629 NGC7667 NGC7684 NGC7693
NGC7603 NGC7629 NGC7667 NGC7684 NGC7693
NGC7716 NGC7738 NGC7739 NGC7746 NGC7787
NGC7716 NGC7738 NGC7739 NGC7746 NGC7787
PGC70104 UGC10000 UGC10005 UGC10009 UGC10014
PGC70104 UGC10000 UGC10005 UGC10009 UGC10014
UGC10025 UGC10026 UGC10027 UGC10029 UGC10041
UGC10025 UGC10026 UGC10027 UGC10029 UGC10041
UGC10068 UGC10077 UGC10082 UGC10130 UGC10131
UGC10068 UGC10077 UGC10082 UGC10130 UGC10131
UGC10137 UGC10158 UGC10172 UGC10184 UGC10203
UGC10137 UGC10158 UGC10172 UGC10184 UGC10203
UGC10213 UGC10216 UGC10225 UGC10238 UGC10249
UGC10213 UGC10216 UGC10225 UGC10238 UGC10249
UGC10327 UGC10337 UGC10373 UGC10375 UGC10384
UGC10327 UGC10337 UGC10373 UGC10375 UGC10384
UGC10414 UGC10416 UGC10435 UGC10463 UGC10545
UGC10414 UGC10416 UGC10435 UGC10463 UGC10545
UGC10808 UGC10842 UGC10866 UGC10879 UGC10894
UGC10808 UGC10842 UGC10866 UGC10879 UGC10894
UGC10909 UGC11695 UGC11714 UGC11723 UGC11724
UGC10909 UGC11695 UGC11714 UGC11723 UGC11724
UGC11725 UGC11733 UGC11740 UGC11765 UGC11773
UGC11725 UGC11733 UGC11740 UGC11765 UGC11773
UGC11782 UGC11789 UGC11790 UGC11792 UGC11814
UGC11782 UGC11789 UGC11790 UGC11792 UGC11814
UGC11816 UGC11825 UGC11827 UGC11853 UGC11863
UGC11816 UGC11825 UGC11827 UGC11853 UGC11863
UGC11982 UGC12068 UGC12114 UGC12151 UGC12208
UGC11982 UGC12068 UGC12114 UGC12151 UGC12208
UGC12295 UGC12336 UGC12346 UGC12348 UGC12452
UGC12295 UGC12336 UGC12346 UGC12348 UGC12452
UGC12479 UGC12492 UGC12503 UGC12521 UGC12589
UGC12479 UGC12492 UGC12503 UGC12521 UGC12589
UGC12635 UGC12656 UGC12659 UGC12661 UGC12685
UGC12635 UGC12656 UGC12659 UGC12661 UGC12685
UGC12690 UGC12709 UGC12729 UGC12739 UGC12769
UGC12690 UGC12709 UGC12729 UGC12739 UGC12769
UGC12774 UGC12810 UGC12857 UGC3916 UGC3939
UGC12774 UGC12810 UGC12857 UGC3916 UGC3939
UGC3960 UGC3995 UGC4038 UGC4135 UGC4208
UGC3960 UGC3995 UGC4038 UGC4135 UGC4208
UGC4251 UGC4253 UGC4254 UGC4269 UGC4341
UGC4251 UGC4253 UGC4254 UGC4269 UGC4341
UGC4346 UGC4364 UGC4381 UGC4418 UGC4431
UGC4346 UGC4364 UGC4381 UGC4418 UGC4431
UGC4439 UGC4450 UGC4464 UGC4542 UGC4575
UGC4439 UGC4450 UGC4464 UGC4542 UGC4575
UGC4597 UGC4602 UGC4624 UGC4626 UGC4638B
UGC4597 UGC4602 UGC4624 UGC4626 UGC4638B
UGC4640 UGC4651 UGC4684 UGC4722 UGC4745
UGC4640 UGC4651 UGC4684 UGC4722 UGC4745
UGC4746 UGC4748 UGC4764 UGC4774 UGC4802
UGC4746 UGC4748 UGC4764 UGC4774 UGC4802
UGC4804 UGC4845 UGC4857 UGC4902 UGC4955
UGC4804 UGC4845 UGC4857 UGC4902 UGC4955
UGC4957 UGC4965 UGC4994 UGC5027 UGC5094
UGC4957 UGC4965 UGC4994 UGC5027 UGC5094
UGC5129 UGC5299 UGC5377 UGC5638 UGC5713
UGC5129 UGC5299 UGC5377 UGC5638 UGC5713
UGC5830 UGC6252 UGC6697 UGC6881 UGC7049
UGC5830 UGC6252 UGC6697 UGC6881 UGC7049
UGC7133 UGC7148 UGC7237 UGC7263 UGC7280
UGC7133 UGC7148 UGC7237 UGC7263 UGC7280
UGC7331 UGC7370 UGC7396 UGC7697 UGC8067
UGC7331 UGC7370 UGC7396 UGC7697 UGC8067
UGC8238 UGC8448 UGC8473 UGC9002 UGC9044
UGC8238 UGC8448 UGC8473 UGC9002 UGC9044
UGC9221-UGC9222 UGC9224 UGC9243 UGC9273 UGC9279
UGC9221-UGC9222 UGC9224 UGC9243 UGC9273 UGC9279
UGC9288 UGC9367 UGC9491 UGC9659 UGC9667
UGC9288 UGC9367 UGC9491 UGC9659 UGC9667
UGC9694 UGC9732 UGC9744 UGC9746 UGC9751
UGC9694 UGC9732 UGC9744 UGC9746 UGC9751
UGC9757 UGC9758 UGC9781 UGC9785 UGC9787
UGC9757 UGC9758 UGC9781 UGC9785 UGC9787
UGC9808 UGC9889 UGC9901 UGC9919 UGC9941
UGC9808 UGC9889 UGC9901 UGC9919 UGC9941
UGC9945 UGC9951 UGC9953 UGC9960 UGC9962
UGC9945 UGC9951 UGC9953 UGC9960 UGC9962
UGC9968 UGC9976 UGC9980 UGC9990 UGC9991
UGC9968 UGC9976 UGC9980 UGC9990 UGC9991
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