Cluster structure in a large number of ROSAT and ASCA clusters

被引：0
|
作者：
Ota, N [1 ]
Mitsuda, K [1 ]
机构：
[1] Tokyo Metropolitan Univ, Hachioji, Tokyo 1920394, Japan
来源：
TRACING COSMIC EVOLUTION WITH GALAXY CLUSTERS, PROCEEDINGS | 2002年 / 268卷
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have performed systematic analysis on X-ray structures of eighty distant clusters of galaxies in the redshift range 0.1 < z < 1. We find that (1) cluster parameters such as temperature, core radius, 8 do not show significant redshift dependence, (2) the core radius shows a double-peaked distribution in its histogram, and (3) the gas-mass ratio is 0.28 +/- 0.10 h(50)(-3/2).
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页码：423 / 424
页数：2
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