Galaxy counts and the galaxy two-point angular correlation function to I=23

被引:23
|
作者
Lidman, CE [1 ]
Peterson, BA [1 ]
机构
[1] MT STROMLO & SIDING SPRING OBSERV, WESTON, ACT 2611, AUSTRALIA
关键词
galaxies; clusters; general; cosmology; observations; large-scale structure of Universe;
D O I
10.1093/mnras/279.4.1357
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present new results on the two-point angular correlation function of galaxies. The results have been determined from two large-format CCD surveys, covering 13 deg(2) in total. At all magnitudes the two-point correlation function is well described by a power law with an index, delta, equal to - 0.8. The amplitude of the correlation function decreases with increasing magnitude; however, the precise behaviour is not reproduced in models that include reasonable amounts of clustering evolution. We also present new data on the I-band galaxy number counts. A model that fits the count data well is a model that has a cosmological constant and a local galaxy number density equal to 1.76 x 10(-2)(H-0/100)(3) Mpc(-3).
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页码:1357 / 1379
页数:23
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