Color bimodality

• by Ghost_Sheep_SWR

  Apparently this is a 'thing', but it refers to red or blue galaxies and not to bi-coloured galaxies that clearly exhibit two distinct different colours.

  Might a visually undisturbed non-artifact bi-coloured galaxy be the actual snapshot of a short-lived asymmetric transition phase from blue-to-red or red-to-blue?

  Posted February 11, 2017 10:49 AM

• by Ghost_Sheep_SWR

  For example these two galaxies from the collection thread https://talk.galaxyzoo.org/?_ga=1.244656832.476670387.1443719759#/boards/BGZ0000007/discussions/DGZ0002cgg?page=3&comment_id=58a0c8827d25c733c30001b4

  They don't look disturbed and show the same bi-colour appearance in two or three different surveys, so it is very unlikely an optical artifact

  
  

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  Posted February 13, 2017 9:32 AM

• by c_cld

  For your collection

  Duo

  SDSS J014705.91-024335.2 1237678889058173148

  SDSS J014705.77-024332.6 1237678889058173147

  

  😉

  Posted February 13, 2017 3:10 PM

• by c_cld

  And a funny one

  SDSS J011925.46+014215.5 1237678617963397147)

  

  Posted February 13, 2017 3:14 PM

• by Ghost_Sheep_SWR in response to c_cld's comment.

  Thanks c_cld they look nice I'll put the first one in 😃. The first one surely must be optical artifact, oh I wish DECaLS was back up again.

  Second one definitely disturbed, like a quarter galaxy was ripped off (too disturbed for me, you can put in thread yourself if you want to).

  Posted February 13, 2017 9:10 PM