Radial temperature profiles of 11 clusters of galaxies observed with BeppoSAX

被引:62
作者
Irwin, JA [1 ]
Bregman, JN [1 ]
机构
[1] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA
关键词
cooling flows; galaxies : clusters : general; intergalactic medium; X-rays : galaxies;
D O I
10.1086/309148
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have derived azimuthally averaged radial temperature profiles of the X-ray gas contained within 11 clusters of galaxies with redshift z = 0.03-0.2 observed with BeppoSAX. Each of the 11 clusters have had their radial temperature profiles previously determined with ASCA. We find that the temperature profiles of these clusters are generally flat or increase slightly out to similar to 30% of the virial radius and that a decline in temperature of 14% out to 30% of the virial radius is ruled out at the 99% confidence level. This is in accordance with a previous ROSAT PSPC study and an ASCA study by White but in disagreement with an ASCA study by Markevitch et al. that found on average that cluster temperature profiles decreased significantly with radius.
引用
收藏
页码:543 / 554
页数:12
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