KMS of Xinjiang Astronomical Observatory, CAS
| The cross-correlation analysis in Z source GX 349+2 | |
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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| 2016-01-21 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| Volume | 455Issue:3Pages:2959-2968 |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | Binaries: General Stars: Individual: Gx 349+2 Stars: Neutron X-rays: Binaries |
| Subtype | Article |
| DOI | 10.1093/mnras/stv2459 |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | 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 |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000368008200052 |
| Funding Organization | Xinjiang Uygur Autonomous Region of China ; National Key Basic Research Program of China (973 Program)(2015CB857100) ; Natural Science Foundation of China(11173024 ; Program of the Light in Chinese Western Region (LCWR) by Chinese Academy of Sciences (CAS)(XBBS 201121) ; 11203064) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/914 |
| Collection | 已撤销研究室/团组_高能天体物理研究团组 |
| Affiliation | 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 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| MNRAS-2016-Ding-2959（552KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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