Soft X-ray and extreme ultraviolet excess emission from clusters of galaxies

被引：28
|
作者：
Durret, F. [1 ]
Kaastra, J. S. [2 ,3 ]
Nevalainen, J. [4 ]
Ohashi, T. [5 ]
Werner, N. [2 ,6 ]
机构：
[1] Univ Paris 06, Inst Astrophys Paris, CNRS, UMR 7095, F-75014 Paris, France
[2] SRON Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands
[3] Univ Utrecht, Astron Inst, NL-3508 TA Utrecht, Netherlands
[4] Univ Helsinki, FIN-00014 Helsinki, Finland
[5] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan
[6] Max Planck Inst Astrophys, D-85794 Garching, Germany
来源：
SPACE SCIENCE REVIEWS | 2008年 / 134卷 / 1-4期
基金：
芬兰科学院;
关键词：
galaxies : clusters; X-ray : spectra;
D O I：
10.1007/s11214-008-9313-8
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
An excess over the extrapolation to the extreme ultraviolet and soft X-ray ranges of the thermal emission from the hot intracluster medium has been detected in a number of clusters of galaxies. We briefly present each of the satellites (EUVE, ROSAT PSPC and BeppoSAX, and presently XMM-Newton, Chandra and Suzaku) and their corresponding instrumental issues, which are responsible for the fact that this soft excess remains controversial in a number of cases. We then review the evidence for this soft X-ray excess and discuss the possible mechanisms (thermal and non-thermal) which could be responsible for this emission.
引用
收藏
页码：51 / 70
页数：20
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