Searching for faint tidal debris in DECaLS images

by Budgieye moderator

Scientist Sugata Kaviraj is looking for faint tidal debris in DECaLS images. Bright tidal trails will get picked up during classification. This is for the dim ones, old relics of the history of the galaxies.

Below are examples from the blog.

#faint_tidal_debris

Blog: Searching for “tidal debris” in DECaLS images by Sugata Kaviraj,

http://blog.galaxyzoo.org/page/2/?_ga=1.166705400.711441289.1371287491

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Example 1. Faint tidal debris extension is visible to the upper left of the main galaxy. Image courtesy DECaLS/Galaxy Zoo.

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Example 2. Faint tidal debris is visible around the main galaxy in a shell-like shape (see arrows). Image courtesy DECaLS/Galaxy Zoo.

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http://talk.galaxyzoo.org/#/subjects/AGZ000ao5x

Example 3. Faint tidal debris extension is visible to the left of the main galaxy (within red ellipse). Image courtesy DECaLS/Galaxy Zoo.

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Example 4. A small satellite galaxy is merging into the larger one at the center, being ripped apart and causing tidal debris. Image courtesy DECaLS/Galaxy Zoo.

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Example 5. Tidal debris (within the red outline) extending to the top and left of the main galaxy. Image courtesy DECaLS/Galaxy Zoo.

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Example 6. Faint tidal debris in a “shell” structure, extending in several directions from the main galaxy (comparable to Example 3). Image courtesy DECaLS/Galaxy Zoo.

Posted February 7, 2016 11:33 PM

by Budgieye moderator

I removed my post, - tidal debris was pretty, but not faint

Posted February 8, 2016 12:00 AM

by Budgieye moderator

faint line beneath galaxy ( or my imagination)

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http://talk.galaxyzoo.org/#/subjects/AGZ000asy0

Posted February 8, 2016 12:29 AM

by Budgieye moderator

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http://talk.galaxyzoo.org/#/subjects/AGZ000bcl4

Posted February 8, 2016 12:32 AM

by Budgieye moderator

faint ring far away from galaxy

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http://talk.galaxyzoo.org/#/subjects/AGZ000bhcw

Posted February 8, 2016 2:01 PM

by Budgieye moderator

much debris

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http://talk.galaxyzoo.org/#/subjects/AGZ000bgwx

Posted February 8, 2016 2:14 PM

by Budgieye moderator

faint ring

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http://talk.galaxyzoo.org/#/subjects/AGZ000bfg2

Posted February 8, 2016 2:20 PM

by Budgieye moderator

large tidal debris

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http://talk.galaxyzoo.org/#/subjects/AGZ000alt9

Posted February 8, 2016 2:22 PM

by Abe_Hoekstra

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http://talk.galaxyzoo.org/#/subjects/AGZ000b3tg

Posted February 8, 2016 2:25 PM

by c_cld

Could be of interest:

great outer ring leaning out the disk plane of galaxy MCG+00-58-012

http://legacysurvey.org/viewer/jpeg-cutout-decals-dr2/?ra=343.8192&dec=2.2465&size=512&pixscale=0.4&bands=grz

MCG+00-58-012 4' on a side

Posted February 8, 2016 2:35 PM

by Budgieye moderator

large halo

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http://talk.galaxyzoo.org/#/subjects/AGZ000bbny

Posted February 8, 2016 10:13 PM

by Budgieye moderator

several long faint debris trails

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http://talk.galaxyzoo.org/#/subjects/AGZ000aleg

Posted February 8, 2016 10:43 PM

by Budgieye moderator

faint debris on top

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http://talk.galaxyzoo.org/#/subjects/AGZ000artk

Posted February 9, 2016 6:09 AM

by c_cld

AGZ000b76g

NGC6622 NGC 2622

and group neighbors

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Posted February 9, 2016 3:44 PM

by williamaskew

I just started a collection for you if it helps. Check in periodically and there will be new ones for you. Ill go through some old collections too, if someone hasn't already.

Billy

http://talk.galaxyzoo.org/?_ga=1.91378142.533301967.1455069689#/collections/CGZS000oxa

Posted February 10, 2016 3:01 AM

by Budgieye moderator

Maybe we should ask the scientist who is interested in this to come in. I think faint details are wanted. Large debris trails would be picked up during classification

Posted February 10, 2016 5:58 AM

by Budgieye moderator

debris disk around galaxy

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