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

页码：51 / 70

页数：20

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