The time lag of high-energy photons of Cyg X-1 in hard state
文献类型：期刊论文
| 作者 | Qu JL(屈进禄) ; Li TB(李惕碚); Qu, JL; Li, TP
|
| 刊名 | CHINESE ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2001 |
| 卷号 | 25期号:4页码:416-424 |
| 关键词 | X-ray binary fast light variation Cyg X-1 |
| 通讯作者 | Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China ; Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China |
| 英文摘要 | The time lag between hard and soft X-rays is an important aspect of the study of high-energy emission. Fourier cross spectrum, often used in calculating the time lag, is unable to measure statistically significant fast light variation above Fourier frequency 30 Hz from the measurements of Cyg X-1. The method of cross correlation function in time domain, developed by Li Ti-pei, can be effectively used in measuring time lags on different time scales. Using Li's method we discuss the properties of the time lag of high-energy photons of Cyg X-1 in hard state at different times. The results show that there is a significant time lap on short times scales (< 0.1 s). We confront different models of hard-state Cygnus X-1 with the observed time lag. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000172661300004 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/237384]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_粒子天体物理中心 |
| 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 | Qu JL,Li TB,Qu, JL,et al. The time lag of high-energy photons of Cyg X-1 in hard state[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2001,25(4):416-424. |
| APA | 屈进禄,李惕碚,Qu, JL,&Li, TP.(2001).The time lag of high-energy photons of Cyg X-1 in hard state.CHINESE ASTRONOMY AND ASTROPHYSICS,25(4),416-424. |
| MLA | 屈进禄,et al."The time lag of high-energy photons of Cyg X-1 in hard state".CHINESE ASTRONOMY AND ASTROPHYSICS 25.4(2001):416-424. |
入库方式： OAI收割
来源：高能物理研究所
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