IHEP OpenIR  > 院士
Temporal and spectral correlations of Cygnus X-1
Li TB(李惕碚); Li, TP; Feng, YX; Chen, L
1999
发表期刊ASTROPHYSICAL JOURNAL
卷号521期号:2页码:789-797
通讯作者Chinese Acad Sci, Inst High Energy Phys, High Energy Astrophys Lab, Beijing, Peoples R China ; Beijing Normal Univ, Dept Astron, Beijing, Peoples R China
文章类型Article
摘要Temporal and spectral properties of X-ray rapid variability of Cyg X-l are studied through correlation analysis in the time domain on different timescales. The correlation coefficients between the total intensity in the 2-60 keV band and the hardness ratio of the 13-60 keV to the 2-6 keV band on the timescale of similar to 1 ms are always negative in all states. For soft states, the correlation coefficients are positive on all timescales from similar to 0.01 to similar to 100 s, which is significantly different from those for transition and low states. The temporal structures in the high-energy band are narrower than those in low-energy band in quite a few cases. The delay of high-energy photons relative to low-energy ones in the X-ray variations has also been revealed by the correlation analysis. The implications of the observed temporal and spectral characteristics for the production region and mechanism of Cyg X-l X-ray variations are discussed.
关键词accretion, accretion disks stars : individual (Cygnus X-l) X-rays : stars
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
DOI10.1086/307566
URL查看原文
语种英语
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000082017800032
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238490
专题院士
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Li TB,Li, TP,Feng, YX,et al. Temporal and spectral correlations of Cygnus X-1[J]. ASTROPHYSICAL JOURNAL,1999,521(2):789-797.
APA 李惕碚,Li, TP,Feng, YX,&Chen, L.(1999).Temporal and spectral correlations of Cygnus X-1.ASTROPHYSICAL JOURNAL,521(2),789-797.
MLA 李惕碚,et al."Temporal and spectral correlations of Cygnus X-1".ASTROPHYSICAL JOURNAL 521.2(1999):789-797.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
5412.pdf(261KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[李惕碚]的文章
[Li, TP]的文章
[Feng, YX]的文章
百度学术
百度学术中相似的文章
[李惕碚]的文章
[Li, TP]的文章
[Feng, YX]的文章
必应学术
必应学术中相似的文章
[李惕碚]的文章
[Li, TP]的文章
[Feng, YX]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。