Reanalysis of the RXTE observations of the black-hole candidate XTE J1650-500 in the 2001/2002 outburst

doi:10.1088/1674-4527/12/3/004

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	Reanalysis of the RXTE observations of the black-hole candidate XTE J1650-500 in the 2001/2002 outburst
	Yan LH(严丽红)1,2,3 ; Wang JC(王建成)1,2 ; Yan, LH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2012-03
卷号	12 期号:3 页码:269-286
DOI	10.1088/1674-4527/12/3/004
产权排序	第1完成单位
收录类别	SCI
关键词	Black Hole Physics Accretion X-rays Binaries: Individual (Xte 11650-500) Accretion Disks X-rays: Stars
摘要	We present the results of the spectral fits made to 59 Rossi X-ray Timing Explorer (RXTE) observations of the Galactic X-Ray Black-Hole Candidate XTE J1650-500 covering the first 30d of its 2001/2002 outburst when the source was in a transition from the hard state to the soft state. The photon spectra can be well fitted with a phenomenological model of a power-law/cutoff power-law and a physical model of bulk-motion Comptonization. The spectral properties smoothly evolve away from the hard state and then stay in the soft state. The fitting results of the physical model reveal the peak of the burst had a flux of 2.90 x 10(-8) erg cm(-2) s(-1) in the 2-100 keV energy range and was observed on 2001 Sep. 9; it transitioned to the hard state. The total flux decays by a factor of as it evolves into the soft state. The photon index Gamma increases from similar to 1.5 in the hard state and stays at similar to 2.5 in the soft state. We found that the effective area of the high-energy X-ray emission region (the Compton cloud) decreases, i.e. the area of the Compton cloud decreases by a factor of similar to 23 during the transition from the hard state to the soft state. Combining the new radio and quasi-periodic oscillation studies, the model of total flux in the 2-100 keV energy range, the jet emission and the timing analysis during the state transition, we suggest a possible geometry and evolution for the (jet+corona+disk) system, like that proposed by Kalemci et al. based on enhanced lags and peak frequency shift during the transition.
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-YWT24] ; [14079101]
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	2012-02-20
WOS记录号	WOS:000302051900004
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	X-RAY BINARIES ; QUASI-PERIODIC OSCILLATIONS ; ACTIVE GALACTIC NUCLEI ; ALL-SKY MONITOR ; DOMINATED ACCRETION FLOWS ; PROPORTIONAL COUNTER ARRAY ; CONVERGING FLUID-FLOW ; BROAD-BAND SPECTRUM ; NOVA MUSCAE 1991 ; GAMMA-RAY
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/114a53/5023
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, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.Graduate University 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 . Reanalysis of the RXTE observations of the black-hole candidate XTE J1650-500 in the 2001/2002 outburst[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2012,12(3):269-286.
APA	Yan LH,Wang JC,&Yan, LH .(2012).Reanalysis of the RXTE observations of the black-hole candidate XTE J1650-500 in the 2001/2002 outburst.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,12(3),269-286.
MLA	Yan LH,et al."Reanalysis of the RXTE observations of the black-hole candidate XTE J1650-500 in the 2001/2002 outburst".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 12.3(2012):269-286.

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