A MEASUREMENT OF THE MASS FLUCTUATION SPECTRUM FROM THE CLUSTER X-RAY TEMPERATURE FUNCTION

被引：318

作者：

HENRY, JP

ARNAUD, KA

机构：

[1] NASA, GODDARD SPACE FLIGHT CTR, HIGH ENERGY ASTROPHYS LAB, GREENBELT, MD 20771 USA

[2] UNIV MARYLAND, ASTRON PROGRAM, COLLEGE PK, MD 20742 USA

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 372卷 / 02期

关键词：

GALAXIES; CLUSTERING; X-RAYS;

D O I：

10.1086/169987

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a statistically complete sample of galaxy clusters which also has complete X-ray temperature information. Using this sample we derive the cluster bolometric luminosity and temperature functions. The temperature function constrains the shape and amplitude of the mass fluctuation power spectrum. For a power law, i.e., with the fluctuation power spectrum proportional to k(n), we find n = -(1.7(-0.35)+0.65), and an amplitude which implies that the rms value of delta-M/M is 0.59 +/- 0.02 on a scale of 8 h-1 Mpc at the present epoch.

引用

页码：410 / 418

页数：9

共 31 条

[1] A CATALOG OF RICH CLUSTERS OF GALAXIES [J].