Galaxies in SDSS and DEEP2: A Quiet Life on the Blue Sequence?

  title={Galaxies in SDSS and DEEP2: A Quiet Life on the Blue Sequence?},
  author={Michael R. Blanton},
  journal={The Astrophysical Journal},
  pages={268 - 280}
  • M. Blanton
  • Published 5 December 2005
  • Physics
  • The Astrophysical Journal
In the six billion years between redshifts z = 1 and z = 0.1, galaxies change due to the aging of their stellar populations, the formation of new stars, and mergers with other galaxies. Here I explore the relative importance of these various effects, finding that mergers and other processes are unlikely to convert more than 10% of the blue galaxy sequence into red galaxies in that time period. I compare the galaxy population at redshift z ~ 0.1 from the Sloan Digital Sky Survey (SDSS) to the… 
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