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X-ray shots of Cygnus X-1
Feng YX(冯育新); Li TB(李惕碚); Feng, YX; Li, TP; Chen, L
1999
发表期刊ASTROPHYSICAL JOURNAL
卷号514期号:1页码:373-382
通讯作者Inst High Energy Phys, High Energy Astrophys Lab, Beijing 100039, Peoples R China ; Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
摘要X-ray shots of Cyg X-l in different energy bands and spectral states have been studied with proportional counter array (PCA)/Rossi X-Ray Timing Explorer (RXTE) observations. The detailed shot structure is obtained by superposing many shots with 1 ms time bin through aligning their peaks with an improved algorithm. In general, the shots are composed of a slow rise and fast decay. The shot structures in the different states are different. The duration of a shot in the high state is shorter than that in the low and transition states. The shot profile in the high-energy band is more asymmetric and narrower than that in the low-energy band. The average hardness of a shot is lower than that of steady emission in the transition and low states but higher than that in the high state. The time lags between the shots in higher and lower energy bands have been found in the different states. In transition states, the time lag is largest among the different states of Cyg X-l, and it is smallest in the low state. The implications of the observed shot features for shot models are discussed.
文章类型Article
关键词accretion, accretion disks stars : individual (Cygnus X-1) X-rays : stars
学科领域Astronomy & Astrophysics
DOI10.1086/306946
研究领域[WOS]Astronomy & Astrophysics
URL查看原文
语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000080057000030
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被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237213
专题院士
作者单位中国科学院高能物理研究所
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GB/T 7714
Feng YX,Li TB,Feng, YX,et al. X-ray shots of Cygnus X-1[J]. ASTROPHYSICAL JOURNAL,1999,514(1):373-382.
APA 冯育新,李惕碚,Feng, YX,Li, TP,&Chen, L.(1999).X-ray shots of Cygnus X-1.ASTROPHYSICAL JOURNAL,514(1),373-382.
MLA 冯育新,et al."X-ray shots of Cygnus X-1".ASTROPHYSICAL JOURNAL 514.1(1999):373-382.
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