Environmental dependence of different colors in the CMASS sample of the SDSS DR9

Abstract

In this study, I investigate the environmental dependence of galaxy colors in the CMASS sample of the Sloan Digital Sky Survey Data Release 9 (SDSS DR9). To decrease the radial selection effect, I divide the CMASS sample into subsamples with a redshift binning size of 0.01 and analyze the environmental dependence of the u-r, u-g, g-r, r-i and i-z colors for these subsamples in each redshift bin. Statistical analysis shows that all the five colors weakly correlate with the local environment, which may mean that the environmental processes responsible for a galaxy's properties proceed slowly over cosmic time.

12 pages, 6 figures, accepted by RAA

References in corpus (10)

• The Baryon Oscillation Spectroscopic Survey of SDSS-III
• The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey
• Galaxy Zoo: the dependence of morphology and colour on environment
• The DEEP2 Galaxy Redshift Survey: The Relationship Between Galaxy Properties and Environment at z ~ 1
• Stellar masses of SDSS-III BOSS galaxies at z~0.5 and constraints to galaxy formation models
• The DEEP2 Galaxy Redshift Survey: Evolution of the Color-Density Relation at 0.4 < z < 1.35
• The VIMOS VLT Deep Survey: The build-up of the colour-density relation
• The DEEP2 galaxy redshift survey: the evolution of the blue fraction in groups and the field
• The evolution of early and late type galaxies in the COSMOS up to z~1.2
• Comparisons of the environmental dependence of galaxy properties between galaxies above and below M