TY - JOUR
T1 - The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey
T2 - luminosity and color dependence and redshift evolution
AU - Guo, Hong
AU - Zehavi, Idit
AU - Zheng, Zheng
AU - Weinberg, David H.
AU - Berlind, Andreas A.
AU - Blanton, Michael
AU - Chen, Yanmei
AU - Eisenstein, Daniel J.
AU - Ho, Shirley
AU - Kazin, Eyal
AU - Manera, Marc
AU - Maraston, Claudia
AU - McBride, Cameron K.
AU - Nuza, Sebastián E.
AU - Padmanabhan, Nikhil
AU - Parejko, John K.
AU - Percival, Will J.
AU - Ross, Ashley J.
AU - Ross, Nicholas P.
AU - Samushia, Lado
AU - Sánchez, Ariel G.
AU - Schlegel, David J.
AU - Schneider, Donald P.
AU - Skibba, Ramin A.
AU - Swanson, Molly E. C.
AU - Tinker, Jeremy L.
AU - Tojeiro, Rita
AU - Wake, David A.
AU - White, Martin
AU - Bahcall, Neta A.
AU - Bizyaev, Dmitry
AU - Brewington, Howard
AU - Bundy, Kevin
AU - da Costa, Luiz N. A.
AU - Ebelke, Garrett
AU - Malanushenko, Elena
AU - Malanushenko, Viktor
AU - Oravetz, Daniel
AU - Rossi, Graziano
AU - Simmons, Audrey
AU - Snedden, Stephanie
AU - Streblyanska, Alina
AU - Thomas, Daniel
PY - 2013/4/4
Y1 - 2013/4/4
N2 - We measure the luminosity and color dependence and the redshift
evolution of galaxy clustering in the Sloan Digital Sky Survey-III
Baryon Oscillation Spectroscopic Survey Ninth Data Release. We focus on
the projected two-point correlation function (2PCF) of subsets of its
CMASS sample, which includes about 260,000 galaxies over ~3300 deg2 in the redshift range 0.43 < z
< 0.7. To minimize the selection effect on galaxy clustering, we
construct well-defined luminosity and color subsamples by carefully
accounting for the CMASS galaxy selection cuts. The 2PCF of the whole
CMASS sample, if approximated by a power-law, has a correlation length
of r 0 = 7.93 ± 0.06 h –1
Mpc and an index of γ = 1.85 ± 0.01. Clear dependences on galaxy
luminosity and color are found for the projected 2PCF in all redshift
bins, with more luminous and redder galaxies generally exhibiting
stronger clustering and steeper 2PCF. The color dependence is also
clearly seen for galaxies within the red sequence, consistent with the
behavior of SDSS-II main sample galaxies at lower redshifts. At a given
luminosity (k + e corrected), no significant evolution of
the projected 2PCFs with redshift is detected for red sequence galaxies.
We also construct galaxy samples of fixed number density at different
redshifts, using redshift-dependent magnitude thresholds. The clustering
of these galaxies in the CMASS redshift range is found to be consistent
with that predicted by passive evolution. Our measurements of the
luminosity and color dependence and redshift evolution of galaxy
clustering will allow for detailed modeling of the relation between
galaxies and dark matter halos and new constraints on galaxy formation
and evolution.
AB - We measure the luminosity and color dependence and the redshift
evolution of galaxy clustering in the Sloan Digital Sky Survey-III
Baryon Oscillation Spectroscopic Survey Ninth Data Release. We focus on
the projected two-point correlation function (2PCF) of subsets of its
CMASS sample, which includes about 260,000 galaxies over ~3300 deg2 in the redshift range 0.43 < z
< 0.7. To minimize the selection effect on galaxy clustering, we
construct well-defined luminosity and color subsamples by carefully
accounting for the CMASS galaxy selection cuts. The 2PCF of the whole
CMASS sample, if approximated by a power-law, has a correlation length
of r 0 = 7.93 ± 0.06 h –1
Mpc and an index of γ = 1.85 ± 0.01. Clear dependences on galaxy
luminosity and color are found for the projected 2PCF in all redshift
bins, with more luminous and redder galaxies generally exhibiting
stronger clustering and steeper 2PCF. The color dependence is also
clearly seen for galaxies within the red sequence, consistent with the
behavior of SDSS-II main sample galaxies at lower redshifts. At a given
luminosity (k + e corrected), no significant evolution of
the projected 2PCFs with redshift is detected for red sequence galaxies.
We also construct galaxy samples of fixed number density at different
redshifts, using redshift-dependent magnitude thresholds. The clustering
of these galaxies in the CMASS redshift range is found to be consistent
with that predicted by passive evolution. Our measurements of the
luminosity and color dependence and redshift evolution of galaxy
clustering will allow for detailed modeling of the relation between
galaxies and dark matter halos and new constraints on galaxy formation
and evolution.
KW - Cosmology: observations
KW - Cosmology: theory
KW - Galaxies: distances and redshifts
KW - Galaxies: halos
KW - Galaxies: statistics
KW - Large-scale structure of Universe
UR - http://adsabs.harvard.edu/abs/2013ApJ...767..122G
U2 - 10.1088/0004-637X/767/2/122
DO - 10.1088/0004-637X/767/2/122
M3 - Article
SN - 0004-637X
VL - 767
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 122
ER -