Evolution in the clustering of galaxies for z < 1.0

被引:26
作者
Brunner, RJ [1 ]
Szalay, AS
Connolly, AJ
机构
[1] CALTECH, Dept Astron, Pasadena, CA 91125 USA
[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[3] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA
关键词
cosmology : observations; galaxies : clusters : general; galaxies : evolution; galaxies : photometry; large-scale structure of universe;
D O I
10.1086/309488
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Measuring the evolution in the clustering of galaxies over a large redshift range is a challenging problem. We have developed a new technique that uses photometric redshifts to measure the angular correlation function in redshift shells. This novel approach minimizes the galaxy projection effect inherent in standard angular-correlation measurements, and allows for a measurement of the evolution in the galaxy correlation strength with redshift. In this paper, we present new results that utilize more accurate photometric redshifts, derived from a multiband data set (U, B, R, and I) covering almost 200 arcmin(2) to B-AB similar to 26.5 mag, to quantify the evolution in the clustering of galaxies for z < 1. We also extend our technique to incorporate absolute magnitudes, which provides a simultaneous measurement of the evolution of clustering with both redshift and intrinsic luminosity. Specifically, we find a gradual decline in the strength of clustering with redshift out to z similar to 1, as predicted by semianalytic models of structure formation. Furthermore, we find that r(0)(z = 0) approximate to 4.0 h(-1) Mpc for the predictions of linear theory in an Omega(0) = 0.1 universe.
引用
收藏
页码:527 / 534
页数:8
相关论文
共 33 条
[1]   THE UNIVERSE AT FAINT MAGNITUDES .1. MODELS FOR THE GALAXY AND THE PREDICTED STAR COUNTS [J].
BAHCALL, JN ;
SONEIRA, RM .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1980, 44 (01) :73-110
[2]   Modelling the evolution of galaxy clustering [J].
Baugh, CM ;
Benson, AJ ;
Cole, S ;
Frenk, CS ;
Lacey, CG .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 305 (01) :L21-L25
[3]  
Baum W. A., 1962, Problems of Extra-Galactic Research, V15, P390
[4]   SExtractor: Software for source extraction [J].
Bertin, E ;
Arnouts, S .
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1996, 117 (02) :393-404
[5]   Weak gravitational lensing by galaxies [J].
Brainerd, TG ;
Blandford, RD ;
Smail, I .
ASTROPHYSICAL JOURNAL, 1996, 466 (02) :623-637
[6]  
Brunner RJ, 1999, ASTR SOC P, V191, P134
[7]   Toward more precise photometric redshifts: Calibration via CCD photometry [J].
Brunner, RJ ;
Connolly, AJ ;
Szalay, AS ;
Bershady, MA .
ASTROPHYSICAL JOURNAL, 1997, 482 (01) :L21-L24
[8]   The statistical approach to quantifying galaxy evolution [J].
Brunner, RJ ;
Connolly, AJ ;
Szalay, AS .
ASTROPHYSICAL JOURNAL, 1999, 516 (02) :563-581
[9]  
BRUNNER RJ, 1997, THESIS J HOPKINS U
[10]   Faint K-selected galaxy correlations and clustering evolution [J].
Carlberg, RG ;
Cowie, LL ;
Songaila, A ;
Hu, EM .
ASTROPHYSICAL JOURNAL, 1997, 484 (02) :538-544