The rms-flux relation of Cyg X-2 in the horizontal branch
文献类型：期刊论文
| 作者 | Li ZB(李志兵); Lei YJ(雷亚娟); Qu JL(屈进禄); Zhang S(张澍); Song LM(宋黎明); Li, ZB; Lei, YJ; Qu, JL; Zhang, S; Song, LM |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2010 |
| 卷号 | 53期号:1页码:#REF! |
| 关键词 | accretion binaries: close stars: individual (Cygnus X-2) X-rays: binaries accretion disk |
| 通讯作者 | Li, ZB (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China. |
| 英文摘要 | We have investigated the relation between the root mean square (rms) variability and the X-ray flux (rms-flux relation) of the Z source Cyg X-2, and as well the energy dependence based on the Rossi X-ray Timing Explorer (RXTE) observations. We currently focus on the horizontal branch (HB), due to the negative correlation in flux of the soft and the hard X-rays. The rms-flux correlation has energy dependence as follows: positive at hard X-rays (above 10 keV) but negative at soft X-rays (below 10 keV). This provides a feature different from the previous one, and may be suggestive of different origins of X-rays below and above 10 keV. Nevertheless, the overall spectrum can be well fitted with a model consisting of a blackbody and Comptonization components, but the fitting results do not reveal any features around 10 keV that could account for such a change in the rms-flux relation. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| WOS记录号 | WOS:000280291800019 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/226043]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 推荐引用方式 GB/T 7714 | Li ZB,Lei YJ,Qu JL,et al. The rms-flux relation of Cyg X-2 in the horizontal branch[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(1):#REF!. |
| APA | 李志兵.,雷亚娟.,屈进禄.,张澍.,宋黎明.,...&Song LM.(2010).The rms-flux relation of Cyg X-2 in the horizontal branch.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(1),#REF!. |
| MLA | 李志兵,et al."The rms-flux relation of Cyg X-2 in the horizontal branch".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.1(2010):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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