Weak lensing as a calibrator of the cluster mass-temperature relation

被引：31

作者：

Huterer, D

White, M

机构：

[1] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

[2] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 578卷 / 02期

基金：

美国国家航空航天局;

关键词：

cosmology : theory; large-scale structure of universe;

D O I：

10.1086/344699

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The abundance of clusters at the present epoch and weak gravitational lensing shear both constrain roughly the same combination of the power spectrum normalization sigma(s) and matter energy density Omega(M). The cluster constraint further depends on the normalization of the mass-temperature relation. Therefore, combining the weak-lensing and cluster abundance data can be used to accurately calibrate the mass-temperature relation. We discuss this approach and illustrate it using data from recent surveys.

引用

页码：L95 / L98

页数：4

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