Possible collision
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by sagan0224
This galaxy looks like it's been through a lot. Does it look to anyone else like it either hit another one or passed real close?
Posted
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Looks like a spiral / purple pea merger (starforming area?), PhotoZ z of purple object (radio?) is much higher than central galaxy.
Also looks like massive tidal debris towards the star in the lower right corner in DSS and DSS2, but strangely not visible in SDSS or DECaLS? Does anyone know why this would be better visible in old DSS2 than DECaLS (which is best suited for faint sources?
http://legacysurvey.org/viewer?ra=172.18457&dec=-0.29187&zoom=14&layer=decals-dr2
hmm maybe optical artifact combination from two foreground stars..
Posted