Unusual pair of galaxies, one is a ring
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by
Budgieye
moderator
In SDSS, I would think that the galaxy on the right has an artifact, but in GAMA-KiDS. it appear to be a ring. Real rings are rare.
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
Are they interacting?
ThePlatypusWrangler pointed out that the galaxies are different colours, the one of the right may be closer.
z 0.149 zErr 0.00003
http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=135.89738773&dec=0.3469047
The center galaxy has a calm spectrum, no evidence of recent collisions.
http://skyserver.sdss.org/dr9/en/get/specById.asp?id=529304655096735744
objID 1237674460950102288
z 0.132907
zErr 0.025516 might be the same distancehttp://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?id=1237674460950102288
Posted
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For the 'ring' galaxy go to it's NED object page, then click 'spectra' (then FULL DESCRIPTION).
There is a GAMA spectra with z = 0.1493 (Err unknown), so should be at +/- same redshift as central galaxy.On that spectra there is also a 'SPEC ID' you can use in the GAMA 'Single Object Viewer' here: http://www.gama-survey.org/dr2/tools/sov.php
And by going to examine page of the central galaxy you also get the GAMA object page for that one.
Central galaxy GAMA z= 0.14884
http://www.gama-survey.org/dr2/tools/sov.php?cataid=600477
Ring galaxy GAMA z = 0.1493
http://www.gama-survey.org/dr2/tools/sov.php?specid=G09_Y1_FS2_254#spectop
Besides looking like a ring it also reminds me of AGZ000d0es, a galaxy merger with two 'tails', called a 'cometary galaxy'.
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