The impact of high pressure cluster environment on the X-ray luminosity of Coma early-type galaxies

被引：6
|
作者：
Finoguenov, A
Miniati, F
机构：
[1] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
[2] Max Planck Inst Astrophys, D-85741 Garching, Germany
[3] Moscow Space Res Inst, Moscow 117810, Russia
来源：
ASTRONOMY & ASTROPHYSICS | 2004年 / 418卷 / 01期
关键词：
clusters : individual : Coma; X-rays : galaxies; X-rays : ISM;
D O I：
10.1051/0004-6361:20040111
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present an observational Study of the L-X vs. L(B)sigma(2) relation for early-type galaxies in the Coma cluster based Oil the XMM-Newton survey data. Compared to a similar relation for a sample dominated by field early-type galaxies. the Corna cluster galaxies show a flatter slope. Our calculations show that adiabatic compression produces a flattening, in the L-X vs. L(B)sigma(2) relation that is in remarkable agreement with the observed effect. Our scenario is further supported by the observed compactness of the X-ray emission of Coma galaxies.
引用
收藏
页码：L21 / L25
页数：5
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