An X-ray analysis of the cD cluster Abell 2199

被引：0

作者：

Siddiqui, H

Stewart, GC

Johnstone, RM

机构：

[1] Estec, Div Astrophys, Dept Space Sci, NL-2200 AG Noordwijk, Netherlands

[2] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[3] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

来源：

ASTRONOMY & ASTROPHYSICS | 1998年 / 334卷 / 01期

关键词：

galaxies : clusters : individual : A 2199; cooling flows; inter-galactic medium; dark matter; X-rays : galaxies; cosmology : observations;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe the ROSAT analysis of the cD cluster Abell 2199. The spatial distribution is found to be slightly elongated, with an axis ratio of approximate to 0.8 and position angle of approximate to 45 degrees anticlockwise from due North about the cluster centre. The surface brightness profile reveals a significant cooling flow of approximate to 250 M. yr(-1), although a lower mass deposition rate is deduced from the spectral data. The total gas and gravitational masses within a radius of 1.8 Mpc are found to be approximate to 1 x 10(14) Mg and approximate to 5 x 10(14) M. respectively. The implications of these findings are discussed.

引用

页码：71 / 86

页数：16

共 45 条

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