Suppression of thermal conduction in non-cooling flow clusters

被引：5

作者：

Nath, BB ^{[1
]}

机构：

[1] Raman Res Inst, Bangalore 560080, Karnataka, India

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2003年 / 340卷 / 03期

关键词：

galaxies : clusters; general : intergalactic medium; cosmology : theory; X-rays : galaxies; clusters;

D O I：

10.1046/j.1365-8711.2003.06479.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent X-ray observations have revealed a universal temperature profile for the intracluster gas of non-cooling flow clusters which is flat for r less than or equal to 0.2r(180). Numerical simulations, however, obtain a steeper temperature profile in the inner region. We study the effect of thermal conduction on the intracluster gas in non-cooling flow clusters in light of these observations, using the steep temperature profiles obtained by numerical simulations. We find that, given 10(10) yr for the intracluster gas to evolve, thermal conduction should be suppressed from the classical value by a factor of similar to10(-3) in order to explain the observations.

引用

页码：L1 / L5

页数：5

共 36 条

[1] The LX-T relation and intracluster gas fractions of X-ray clusters [J].