X-ray and γ-ray spectra of Cyg X-1 in the soft state

被引：0

作者：

Gierlinski, M ^{[1
]}

Zdziarski, AA ^{[1
]}

Dotani, T ^{[1
]}

Ebisawa, K ^{[1
]}

Jahoda, K ^{[1
]}

Johnson, WN ^{[1
]}

机构：

[1] Jagiellonian Univ Observ, Krakow, Poland

来源：

PROCEEDINGS OF THE FOURTH COMPTON SYMPOSIUM, PTS 1 AND 2: PT 1: THE COMPTON OBSERVATORY IN REVIEW; PT 2: PAPERS AND PRESENTATIONS | 1997年 / 410期

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D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present X-ray/gamma-ray observations of Cyg X-1 in the soft state during 1996 May-June. We analyze ASCA, RXTE and OSSE data. The spectrum consists of soft S-rag blackbody emission of an optically thick accretion disk in the vicinity of a black hole and a power law with an energy index alpha similar to 1.2-1.5 extending to at least several hundred keV. In the spectra, we find the presence of strong Compton reflection, which probably comes from the disk.

引用

页码：844 / 848

页数：5