GalaxyZoo Blog

• by ElisabethB moderator

  A blog post by vrooje (Brooke Simmons) who is out observing !
  Observing Run: WIYN, Kitt Peak – First Report

  Posted May 15, 2013 9:44 AM

• by JeanTate

  And a second one: Why I’m at WIYN: Mergers and Bulgeless Galaxies

  Posted May 17, 2013 8:34 AM

• by ElisabethB moderator

  Galaxy Zoo continues to evolve

  Posted October 15, 2013 2:21 PM

• by vrooje admin, scientist

  Each of the UKIDSS images has a counterpart in SDSS, and they are linked in the Examine page. At least, I know the UKIDSS images link to SDSS SkyServer, but I don't know if the SDSS Examine pages link to UKIDSS if a UKIDSS image exist.

  You're right that there are differences in appearance (some slight, some not) between the different surveys, but hopefully they aren't too offensive. 😃 In the case of CANDELS, the same kind of algorithm was used to make the color images. There weren't any different backgrounds inserted or altered -- that's just what they look like. I do agree that sometimes the noise shows up more clearly than others.

  Posted October 17, 2013 3:29 PM

• by KWillett scientist, admin, translator

  Skyserver is a tool made by SDSS, for SDSS - it doesn't host any other data. There is an access page for UKIDSS data (http://surveys.roe.ac.uk:8080/wsa/DataAnalysis.jsp), but it's not nearly as user-friendly as the Skyserver. Creating a color image is a multi-step process, and you can't easily navigate around the sky or access metadata in the same way you can with SDSS.

  Posted October 18, 2013 2:40 AM

• by KWillett scientist, admin, translator

  No - the Voorwerp isn't visible in infrared images. The Voorwerp is a cloud of ionized gas, showing up most strongly in the optical [OIII] lines (which is why it looks blue in SDSS images). Objects in the sky that have strong emission in the near-infrared (1-2 microns in the UKIDSS images) come mostly from older stars, with temperatures around 2000 K. The Voorwerp has few (if any) stars that would produce light like this, and so it's not visible in the UKIDSS survey.

  Here's the UKIDSS image of IC 2497, the galaxy that produced the radiation ionizing the Voorwerp. The galaxy is clearly visible in the center, but the Voorwerp isn't.

  

  You can see this more clearly on the new SkyServer page, which also hosts data from 2MASS. 2MASS was an older infrared survey that operated at the same wavelengths as UKIDSS, but at lower sensitivities. If you click on the buttons above the image, you can switch back and forth between SDSS and 2MASS and see how the Voorwerp disappears in the infrared images.

  http://skyserver.sdss3.org/public/en/tools/chart/navi.aspx?ra=145.267149113176&dec=34.7329058160271&scale=0.2

  Posted October 18, 2013 10:14 PM

• by zutopian in response to KWillett's comment.

  Thanks for your replies and for the new topic "How to create and access UKIDSS images".
  I think, that it would be better, if the SDSS Skyserver would contain the UKIDSS images instead of the images from 2MASS, which is an older infrared survey.: The image quality of the UKIDSS images is much better.
  (Or the UKIDSS images should be available in wikisky.)

  Posted October 19, 2013 7:42 AM

• by vrooje admin, scientist

  I think it would be great if UKIDSS were available in SkyServer! But that's not really up to us -- SkyServer is run by the SDSS collaboration, so you could always suggest it to them. You may find that they're already working on it, but it may also be the case that there are technical (etc.) obstacles that make this difficult.

  In the meantime, try going to the Data Analysis page Kyle mentioned above, or even the Image Extraction page directly. Many of the objects posted in the GZ Forum thread "Give peas a chance!" have their RA and dec coordinates listed, and you can try them out to see if they're in UKIDSS.

  For instance, I've just tried ra=133.350366, dec=19.506294 from the first page of that thread and got this K-band beauty (let's hope it shows up):

  

  That image would be combined with the J and H in UKIDSS to make the color images you classify, and K band would be the reddest of them. (I haven't looked up whether this is in our sample.) Definitely a detection, unlike the voorwerp!

  Cheers,
  -Brooke

  Posted October 19, 2013 5:38 PM

• by KWillett scientist, admin, translator

  We encourage you to follow up on the images after classification, absolutely. However, having users do so BEFORE the "Done" button is push will bias the classification. The ultimate goal is to explore the astronomical and physical properties of these galaxies. However, if we changed the interface so that you were comparing optical and UV images, that would add additional information, and make impossible to reliably compare data before and after.

  Classifications as green pea-type objects (or anything else) is an analysis task that we will carry on separately from the classifications (and discussions in Talk will be part of this).

  Posted January 3, 2014 4:49 PM

• by ElisabethB moderator

  New blog post by Kyle Willett : Images and Artifacts in Galaxy Zoo UKIDSS images

  Posted May 25, 2014 5:51 PM

• by ElisabethB moderator

  Blog post : Finished with Galaxy Zoo UKIDSS

  Posted May 29, 2014 4:23 PM

• by ElisabethB moderator

  New blog post by Kyle Willett Finished with Galaxy Zoo UKIDSS !

  Posted May 29, 2014 5:01 PM

• by ElisabethB moderator

  New blog post : A galaxy in a teacup or vice versa

  Posted July 9, 2014 3:26 PM

• by ElisabethB moderator

  And a very special blog post : Thanks to the Forum and farewell

  Posted July 10, 2014 1:00 AM

• by ElisabethB moderator

  Our seven favourites

  And what are yours? 😄

  For me it is peas, asteroids, lenses, voorwerpjes, overlaps, zooites, bars (in galaxies) in no particular order ! 😄

  Posted July 11, 2014 5:48 PM

• by ElisabethB moderator

  A couple of blog posts celebrating GalaxyZoo's sevent birthday :

  The SEVEN wonders of GalaxyZoo

  Our SEVEN favourites

  A perfect woollen gift for the SEVENTH anniversary

  Posted July 12, 2014 11:15 AM

• by ElisabethB moderator

  Observing in Hawai'i : Sunset in Hawai'i

  Posted July 12, 2014 11:16 AM

• by Capella05 moderator

  New blog post: Galaxy Zoo: Are Bars Responsible for the Feeding of Supermasssive Black Holes Beyond the Local Universe?

  Posted October 6, 2014 8:44 PM

• by Capella05 moderator

  A new blog from Bill! Fibers and voorwerpjes

  Posted November 18, 2014 7:00 PM

• by ElisabethB moderator

  New Galaxy Zoo Paper accepted for Publication

  First Results from Galaxy Zoo Candels

  Remote observing with the CSO

  Posted December 14, 2014 10:09 AM

• by ElisabethB moderator

  Zooniverse at Mauna-Kea - Part 1, 2, 3, 4, 5 and 6

  Posted February 11, 2015 5:19 PM

• by ElisabethB moderator

  And a Zooniverse blog : The science of Citizen Science meetings in San-Jose this week
  
  There will be a session that is titled, “Citizen Science from the Zooniverse: Cutting-Edge Research with 1 Million Scientists,” at the Citizen Science Association (CSA) and American Association for the Advancement of Scientists (AAAS) meetings in San Jose, California this week. Looks really interesting. It's not just about Galaxy Zoo but lots of scientists from other Zooniverse projects will be present as well.

  Posted February 11, 2015 5:25 PM

• by Capella05 moderator

  Rob's final blog and all about us citizen scientists 😃

  Who Are The Zooniverse Community? We Asked Them...

  From the blog post:

  This is my final blog post as a part of the Zooniverse team. It has been by pleasure to work at the Zooniverse for the last five years. Much of that time has been spent trying to motivate and engage the amazing community of volunteers who come to click, chat, and work on all our projects. You’re an incredible bunch, motivated by science and a desire to be part of something important and worthwhile online. I think you’re awesome. In the last five years I have seen the Zooniverse grow into a community of more than one million online volunteers, willing to tackle big questions, and trying and understand the world around us.

  Thank you for your enthusiasm and your time. I’ll see you online… Rob

  Best of luck from all of here at Galaxy Zoo!

  Posted March 5, 2015 7:43 PM

• by Capella05 moderator

  Another blog from Bill Keel - Hubble science results on Voorwerpjes – episode 1

  Posted March 17, 2015 10:28 PM

• by Capella05 moderator

  From Karen Masters - "What’s all the fuss about bars in galaxies?"

  Posted March 22, 2015 1:15 PM

• by Capella05 moderator

  New GZ Images! From Karen Masters - New Images on Galaxy Zoo, Part 1

  Posted March 27, 2015 7:49 AM

• by Capella05 moderator

  From Kyle Willet: A new paper: Galaxy Zoo and machine learning

  I’m really happy to announce a new paper based on Galaxy Zoo data has
  just been accepted for publication. This one is different than many of
  our previous works; it focuses on the science of machine learning, and
  how we’re improving the ability of computers to identify galaxy
  morphologies after being trained off the classifications you’ve
  provided in Galaxy Zoo. This paper was led by Sander Dieleman, a PhD
  student at Ghent University in Belgium.

  Posted March 31, 2015 5:27 PM

• by ElisabethB moderator

  Visualizing the decision trees for Galaxy Zoo

  Posted April 6, 2015 12:27 PM

• by Capella05 moderator

  From Coleman Krawczyk, a Zooniverse Data Scientist at the ICG at the University of Portsmouth. Explore Galaxy Zoo Classifications

  Today we’ve added another new tool for visualizing Galaxy Zoo, this time showing the full vote path of all users for each galaxy from GZ2 onward. The first node of the visualization shows an image of the galaxy and each of the other nodes represents the answer to a question from the Galaxy Zoo decision tree, and the size of the node is proportional to the number of votes for that answer.

  Posted April 27, 2015 5:19 PM

• by Capella05 moderator

  From Kyle Willet: Finished with Hubble (for now), with new images going back to our “local” Universe

  The new set of images now active are slightly different for us, and so we wanted to explain here what they are and why we want to collect classifications for them.

  Please go and have a read of the blog for more info on the new images!

  Posted May 13, 2015 10:35 PM

• by Capella05 moderator

  From Edmond Cheung: Stellar Populations of Quiescent Barred Galaxies Paper Accepted!

  Posted May 20, 2015 3:44 PM

• by ElisabethB moderator

  New blog post :

  Now back in technicolor

  Posted June 22, 2015 12:05 PM

• by ElisabethB moderator

  1st of 8 daily blog posts featuring relevant eights for the 8th anniversary of Galaxy Zoo by NGC3314 aka Bill Keel

  Eight years, eight Hubble Voorwerpjes targets

  Posted July 5, 2015 9:18 AM

• by ElisabethB moderator

  And here is n°2

  Eight Years and the 8 most Talked-about Galaxies in Galaxy Zoo

  Posted July 5, 2015 4:22 PM

• by ElisabethB moderator

  N°3

  Eight Years and the 8th Most Cited Paper from Galaxy Zoo

  Posted July 6, 2015 7:06 PM

• by Capella05 moderator

  And the 4^th one!

  Eight Years & the 8th Paper: Green Peas – Living Fossils of Galaxy Evolution

  Posted July 7, 2015 5:48 PM

• by ElisabethB moderator

  N°5 !

  8 kpc - The approximate distance of the Sun from the centre of our Galaxy

  Posted July 8, 2015 6:45 PM

• by ElisabethB moderator

  N°6 !

  Eight years and 8 billion years of cosmic history

  Posted July 9, 2015 5:43 PM

• by ElisabethB moderator

  N°7

  Eight years and eight different types of galaxy images

  Posted July 13, 2015 10:05 PM

• by ElisabethB moderator

  And n°8 ! 😄

  Eight Years of Galaxy Zoo

  Happy Birthday Galaxy Zoo ! 😄

  Posted July 13, 2015 10:07 PM

• by Capella05 moderator

  First Radio Galaxy Zoo paper has been accepted!

  The first Radio Galaxy Zoo paper has been accepted by the Monthly Notices of the Royal Astronomical Society (MNRAS) and is available today on astro-ph. The paper entitled “Radio Galaxy Zoo: host galaxies and radio morphologies derived from visual inspection” outlines the project and provides the first look into some of the science that has come from Radio Galaxy Zoo.

  .

  The project now has over 7500 citizen scientists and their
  contributions are individually awknowledged at
  http://rgzauthors.galaxyzoo.org

  Posted July 28, 2015 10:30 AM

• by ElisabethB moderator

  Very exciting new blog posts :

  New images for Galaxy Zoo part 1 - DECaLS

  and

  New images for Galaxy Zoo part 2 - Illustris

  Happy hunting ! 😄

  Posted September 21, 2015 6:23 PM

• by ElisabethB moderator

  Some info on the blue blobs in the Illustris images : Blue stuff in the Illustris galaxy images 😄

  Posted November 11, 2015 8:43 PM

• by ElisabethB moderator

  Not a blog post but a tweet ! 😄

  This got tweeted yesterday :
  
  

  We passed half a million classifications for DECaLS yesterday! Thanks so much to everyone who's helped so far.
  

  Posted November 18, 2015 10:49 PM

• by ElisabethB moderator

  And a new one !

  Finished with the first set of Illustris images

  Posted December 15, 2015 8:57 PM

• by ElisabethB moderator

  A couple of new blog posts :

  Go west young astronomer

  Finished with the first set of Illustris images

  Posted December 20, 2015 5:29 PM

• by ElisabethB moderator

  Another new blog post :

  Galaxy Zoo is in Florida

  You can follow what is happening there on Twitter #aas227

  Posted January 6, 2016 9:53 AM

• by ElisabethB moderator

  Great overview of Galaxy Zoo 2015

  Galaxy Zoo Highlights from 2015

  Posted January 11, 2016 6:27 PM

• by ElisabethB moderator

  An exciting pea blog : Green Pea Galaxies may have been responsible for re-ionizing the Universe

  Posted January 18, 2016 12:35 AM

• by ElisabethB moderator

  Galaxy Zoo at the 27th AAS meeting 😄

  Posted January 26, 2016 10:06 AM

• by ElisabethB moderator

  Finished with two more sets of galaxy images

  Posted February 20, 2016 1:28 PM

• by ElisabethB moderator

  New blog post by Ross Hart

  Spiral galaxies (and why Galaxy Zoo is perfect for their study)

  Posted March 16, 2016 5:27 PM

• by ElisabethB moderator

  New blog post by Coleman Krawczyk

  New Galaxies in galaxy Zoo

  Posted April 7, 2016 10:54 AM

• by ElisabethB moderator

  Happy - sad news : Kyle's legacy

  Posted June 2, 2016 9:17 AM

• by Budgieye moderator in response to ElisabethB's comment.

  Ahhh, no....

  Posted June 2, 2016 2:34 PM

• by 15darnoldf

  cool

  `

  1. Blockquote

  `

  Posted July 4, 2016 2:38 PM

• by ElisabethB moderator

  A new paper about spiral galaxies in Galaxy Zoo : Galaxy Zoo: comparing the demographics of spiral arm number and a
  new method for correcting redshift bias

  Posted July 22, 2016 3:01 PM

• by johnfairweather in response to ElisabethB's comment.

  Ah you found it, didn't have the time to find it - it makes interesting reading.

  Posted July 22, 2016 7:31 PM

• by ElisabethB moderator

  A new blog post about a new GZ paper. Congrats Becky ! 😄

  New paper on active black holes affecting star formation rates

  Posted September 2, 2016 12:04 PM

• by ElisabethB moderator

  Two new blog posts on two new Galaxy Zoo papers ! 😄

  Galaxy Zoo Candels

  and

  Galaxy Zoo Hubble data release

  Congrats Brooke and Kyle and everyone else involved ! 😄

  and a shout out from DailyZoo

  Posted October 13, 2016 5:28 PM

• by ElisabethB moderator

  And a new blog post with some more information on the new FERENGI images : FERENGI 2 images launched

  Posted December 12, 2016 4:59 PM

• by zysyx

  How do I help with the #FERENGI dataset?

  Posted December 14, 2016 3:46 PM

• by ElisabethB moderator in response to zysyx's comment.

  Just classify here in GZ. Some of the images will still be from the DECaLS dataset and others from the FERENGI dataset.

  Thanks for your cooperation and happy hunting ! 😄

  Posted December 14, 2016 4:00 PM

• by ElisabethB moderator

  And another new blog post : New Hubble + Gemini results - history of fading AGN

  Posted December 22, 2016 1:51 PM

• by ElisabethB moderator

  And here's the first GZ blog post of 2017 : Galaxy Zoo relatives at AAS meeting - Hubble does overlapping galaxies

  Posted January 7, 2017 3:38 PM

• by ElisabethB moderator

  And we've got some new images ! New Images for Galaxy Zpp from GAMA - KiDS

  Posted January 31, 2017 1:43 PM

• by Ghost_Sheep_SWR

  Galaxy Zoo Daily Zooniveeeeeeeerse! 😃

  https://daily.zooniverse.org/2017/03/06/its-dutch-for-object/

  (Classifiers inbound?)

  Posted March 6, 2017 6:35 PM

• by ElisabethB moderator in response to Ghost_Sheep_SWR's comment.

  Nice ! 😄

  Posted March 6, 2017 6:58 PM

• by ElisabethB moderator

  Not a blog, but a press release from Liverpool John Moores University with regards to the launch of the GAMA - KiDS dataset : Galaxy Zoo allows public to zoom in on Universe discoveries

  Posted March 6, 2017 7:02 PM

• by ElisabethB moderator

  And here's a new blog post : FERENGI complete + New Illustris images

  Posted March 7, 2017 7:27 AM

• by ElisabethB moderator

  New Papers Investigate Galactic Rings in Galaxy Zoo

  Posted July 26, 2017 7:47 PM

• by ElisabethB moderator

  Want to get involved in a different way ? See : Galaxy Zoo Literature Search

  Posted September 28, 2017 2:31 PM

• by ElisabethB moderator

  A new GZ paper : “Galaxy Zoo: Morphological classification of galaxy images from the Illustris simulation”

  Read more about it here : Classifying galaxies from another galaxy

  Posted February 1, 2018 9:38 AM

• by JeanTate

  Blog post announcing the launch of ZooGems: Gems of the Galaxy Zoos – help pick Hubble observations!

  Posted February 2, 2018 10:12 PM