Origin of power-law X-ray emission in the steep power-law state of X-ray binaries

doi:10.1088/1674-4527/11/6/002

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	Origin of power-law X-ray emission in the steep power-law state of X-ray binaries
	Yan LH(严丽红)1,2 ; Wang JC(王建成)1 ; Yan, LH (reprint author), Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2011-06
卷号	11 期号:6 页码:631-636
DOI	10.1088/1674-4527/11/6/002
产权排序	第1完成单位
收录类别	SCI
关键词	Black Hole Physics Accretion Radiation Mechanisms: Nonthermal Accretion Disks X-rays: Binaries
摘要	We present a new explanation for the origin of the steep power-law (SPL) state of X-ray binaries. The power-law component of X-ray emission is the synchrotron radiation of relativistic electrons in highly magnetized compact spots orbiting near the inner stable circular orbit of a black hole. It has a hard spectrum that extends to above MeV energies, which is determined by the electron acceleration rate. These photons are then down-scattered by the surrounding plasma to form an observed steep spectrum. We discuss the relevance of the model to high-frequency quasi-periodic oscillations and the extremely high luminosity of the SPL state.
项目资助者	National Natural Science Foundation of China [10778702] ; National Basic Research Program of China (973 Program) [2009CB824800] ; Chinese Academy of Sciences [KJCX2-YW-T24]
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1674-4527
URL	查看原文
归档日期	2011-06-15
WOS记录号	WOS:000291963900002
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	QUASI-PERIODIC OSCILLATIONS ; ACCRETING BLACK-HOLES ; PARTICLE-ACCELERATION ; XTE J1550-564 ; GRO J1655-40 ; SHOCKS ; COMPTONIZATION ; VARIABILITY ; RESONANCE ; SPECTRA
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5010
专题	高能天体物理研究组中国科学院天体结构与演化重点实验室
通讯作者	Yan, LH (reprint author), Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	1.Yunnan Observatory/National Astronomical Observatories, Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Yan LH,Wang JC,Yan, LH . Origin of power-law X-ray emission in the steep power-law state of X-ray binaries[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(6):631-636.
APA	Yan LH,Wang JC,&Yan, LH .(2011).Origin of power-law X-ray emission in the steep power-law state of X-ray binaries.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(6),631-636.
MLA	Yan LH,et al."Origin of power-law X-ray emission in the steep power-law state of X-ray binaries".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.6(2011):631-636.

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