The stellar contribution to the galactic soft X-ray background
The stellar contribution to the galactic soft X-ray background
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恒星对银河系软X射线背景的贡献
DOI：
10.1086/183646
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
G. Vaiana
中科院分区：
文献类型：
--
作者：
R. Rosner;Y. Avni;J. Bookbinder;R. Giacconi;L. Golub;F. R. Harnden;C. Maxson;K. Topka;G. Vaiana
我们构建日志N-log S关系的基础上介质的x射线光度为dF，dG，和dK星先前报道的爱因斯坦天文台/天体物理中心恒星调查和详细的x射线光度函数推导出这里的dM星，并调查恒星的贡献扩散软x射线背景。主要结果是，在0.28- 1.0keV通带内，恒星提供了约20%的软X射线背景，因此对该能量范围内的软X射线背景有显著贡献（dM星构成主要贡献类），而在0.15- 0.28keV通带内，恒星对漫射X射线背景的贡献<或约为1.0keV。= 3%。
We construct log N-log S relations for stars based on medium x-ray luminosities for dF, dG, and dK stars previously reported for the Einstein Observatory/Center for Astrophysics stellar survey and on a detailed x-ray luminosity function derived here for dM stars, and investigate the stellar contribution to the diffuse soft x-ray background. The principal results are that stars provide approx.20% of the soft x-ray background in the 0.28--1.0 keV passband and therefore contribute significantly to the soft x-ray background in this energy range (with dM stars constituting the dominant contributing class), and that the stellar contribution to the diffuse x-ray background in the 0.15--0.28 keV passband is < or approx. =3%.