Luminosity and Color Distributions of Galaxies in Clusters and Groups in the SDSS

Details Luminosity and Color Distributions of Galaxies in Clusters and Groups in the SDSS Luminosity and Color Distributions of Galaxies in Clusters and Groups in the SDSS

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20921505h&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #215.05; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the luminosity and color distributions of galaxies in clusters and groups in the Sloan Digial Sky Survey, examined as a function of several cluster properties. The sample, identified with the maxBCG red-sequence method, covers 7398 square degrees of data between redshifts 0.05 and 0.3 and contains clusters and groups spanning a wide range of optical richness. We determine the density distribution of galaxies in clusters by statistically correcting the projected galaxy-cluster cross-correlation function for the effect of non-cluster interlopers. We then examine the distribution of K-corrected magnitudes and colors of the galaxies associated with clusters. We present the luminosity function and color distribution of cluster galaxies as a function of cluster radius (r/r_200), richness, redshift, and luminosity, and as a function of brightest cluster galaxy luminosity and color. These data may be used to constrain models of cluster formation and galaxy evolution within clusters, and provide a reference point to which high-z cluster samples may be compared.

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