Dwarf Galaxies of the Local Group
Dwarf Galaxies of the Local Group
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DOI：
10.1017/s174392130600812x
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发表时间：
2005-08
期刊：
影响因子：
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通讯作者：
R. D. Stefano;R. Soria;F. Primini;A. Kong
中科院分区：
文献类型：
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作者：
R. D. Stefano;R. Soria;F. Primini;A. Kong
XMM-牛顿和钱德拉开创了本星系群矮星系研究的新纪元。我们提供了机会，挑战和一些早期结果的概述。背景源相对于星系源的大量数量是一个主要的主题。尽管存在这一挑战，但对对应物的识别已经成为可能，这暗示了在较大星系中产生X射线源的相同机制在矮星系中也很活跃。在M32超大质量黑洞2英寸范围内的超软X射线源可能是巨星潮汐破裂的残余，尽管不能排除其他解释。
XMM-Newton and Chandra have ushered in a new era for the study of dwarf galaxies in the Local Group. We provide an overview of the opportunities, challenges, and some early results. The large number of background sources relative to galaxy sources is a major theme. Despite this challenge, the identification of counterparts has been possible, providing hints that the same mechanisms producing X-ray sources in larger galaxies are active in dwarf galaxies. A supersoft X-ray source within 2″ of the supermassive black hole in M32 may be a remnant of the tidal disruption of a giant, although other explanations cannot be ruled out.