The cross-correlation analysis in Z source GX 349+2
文献类型：期刊论文
| 作者 | Ding, G. Q.1 ; Zhang, W. Y.1,2; Wang, Y. N.3; Li, Z. B.1; Qu, J. L.4; Huang, C. P.1
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2016-01-21 |
| 卷号 | 455期号:3页码:2959-2968 |
| 关键词 | binaries: general stars: individual: GX 349+2 stars: neutron X-rays: binaries |
| 英文摘要 | Using all the observations from Rossi X-ray Timing Explorer for Z source GX 349+2, we systematically carry out cross-correlation analysis between its soft and hard X-ray light curves. During the observations from 1998 January 9 to January 29, GX 349+2 traced out the most extensive Z track on its hardness-intensity diagram, making a comprehensive study of cross-correlation on the track. The positive correlations and positively correlated time lags are detected throughout the Z track. Outside the Z track, anti-correlations and anti-correlated time lags are found, but the anti-correlated time lags are much longer than the positively correlated time lags, which might indicate different mechanisms for producing the two types of time lags. We argue that neither the short-term time lag models nor the truncated accretion disc model can account for the long-term time lags in neutron star low-mass X-ray binaries (NS-LMXBs). We suggest that the extended accretion disc corona model could be an alternative model to explain the long-term time lags detected in NS-LMXBs. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | X-RAY BINARIES ; QUASI-PERIODIC OSCILLATIONS ; TRUNCATED ACCRETION DISK ; PHASE-LAG VARIABILITY ; NEUTRON-STAR SURFACE ; SOURCE XTE J1701-462 ; BLACK-HOLE SOURCES ; Z-TRACK SOURCES ; CYGNUS X-1 ; TIME LAGS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000368008200052 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/914]  |
| 专题 | 高能天体物理研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Groningen, Kapteyn Astron Inst, NL-9700 AV Groningen, Netherlands 4.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, G. Q.,Zhang, W. Y.,Wang, Y. N.,et al. The cross-correlation analysis in Z source GX 349+2[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,455(3):2959-2968. |
| APA | Ding, G. Q.,Zhang, W. Y.,Wang, Y. N.,Li, Z. B.,Qu, J. L.,&Huang, C. P..(2016).The cross-correlation analysis in Z source GX 349+2.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,455(3),2959-2968. |
| MLA | Ding, G. Q.,et al."The cross-correlation analysis in Z source GX 349+2".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 455.3(2016):2959-2968. |
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