%0 Journal Article %J The Astrophysical Journal Letters %D 2004 %T The Dependence on Environment of the Color-Magnitude Relation of Galaxies %A Hogg, David W. %A Blanton, Michael R. %A Brinchmann, Jarle %A Eisenstein, Daniel J. %A Schlegel, David J. %A Gunn, James E. %A McKay, Timothy A. %A Rix, Hans-Walter %A Bahcall, Neta A. %A Brinkmann, J. %A Meiksin, Avery %X

The distribution in color and absolute magnitude is presented for 55,158galaxies taken from the Sloan Digital Sky Survey in the redshift range0.08-1 Mpc and line-of-sighthalf-length 8 h-1 Mpc. In all environments, bulge-dominatedgalaxies (defined to be those with radial profiles best fitted withlarge Sérsic indices) have a color-magnitude diagram dominated byred galaxies for which the mode of the color distribution at fixedabsolute magnitude depends linearly on absolute magnitude. Although themost luminous galaxies reside preferentially in high-density regions andblue galaxies reside preferentially in low-density regions, there isonly a barely detectable variation with overdensity in the color (zeropoint) or slope of the linear relation between the mode color andluminosity [<0.02 mag in 0.1(g-r) or (B-V)]. These resultsconstrain variations with environmental density in the ages or

%B The Astrophysical Journal Letters %V 601 %P L29-L32 %8 January 1, 2004 %G eng %U http://adsabs.harvard.edu/abs/2004ApJ...601L..29H %3 eprintid: arXiv:astro-ph/0307336