The Color and Stellar Mass Dependence of Small-Scale Galaxy Clustering in SDSS-III BOSS

We measure the correlation of clustering to color and stellar mass in spectroscopic galaxies at 0.6 or \(\pm\)/span> 0.05. Red galaxies therefore have denser environments that their blue counterparts at span class="math-tex">\(z \approx\)/span> 0.625, and this effect heightens with decreasing radius. Irrespective of color, we find that omega; does not obey a simple power law relation with radius, showing a dip around 1 Mpc attributable to the transition from one- to two-halo regimes in HOD models. Holding mass fixed, we find a clear differentiation between clustering in red and blue galaxies, showing that clustering is not solely determined by stellar mass. Holding color fixed, we find that clustering increases with mass, and that this relationship is especially strong in red galaxies at small scales (a factor of 2 effect)./p