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The X-ray power density spectrum of Cyg X-1
Chen, L; Feng YX(冯育新); Li TB(李惕碚); Feng, YX; Li, TP; Li, ZW
2000
发表期刊CHINESE ASTRONOMY AND ASTROPHYSICS
卷号24期号:2页码:#REF!
通讯作者Chen, L (reprint author), Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China.
文章类型Article
摘要The method of auto-regressive power density spectrum (ARPDS) is used to analyse the frequency spectrum characteristics of Cyg X-l. Based on our results, we conclude that the power spectrum can be modelled in the same way for the transition and soft states by a broken power law plus noise. There is a wide noise component (< 3 Hz) and a QPO (4-12 Hz) in each of the transition states, while in the soft state, there is no significant QPO, and its PDS can be characterized perfectly by a broken power law. The frequency cutoff in each state is quite stable, and its evolution is consistent with the qualitative features predicted by the ADAF model. Our study shows that the method is effective for searching and identifying the frequency components in PDS.
关键词accretion disk black hole physics Cyg X-1 X-ray QPO
学科领域Astronomy & Astrophysics
DOI10.1016/S0275-1062(00)00040-0
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000087315900004
引用统计
被引频次:3[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/311005/226586
专题院士
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GB/T 7714
Chen, L,Feng YX,Li TB,et al. The X-ray power density spectrum of Cyg X-1[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2000,24(2):#REF!.
APA Chen, L,冯育新,李惕碚,Feng, YX,Li, TP,&Li, ZW.(2000).The X-ray power density spectrum of Cyg X-1.CHINESE ASTRONOMY AND ASTROPHYSICS,24(2),#REF!.
MLA Chen, L,et al."The X-ray power density spectrum of Cyg X-1".CHINESE ASTRONOMY AND ASTROPHYSICS 24.2(2000):#REF!.
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