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THE ENERGY DEPENDENCE OF THE CENTROID FREQUENCY AND PHASE LAG OF THE QUASI-PERIODIC OSCILLATIONS IN GRS 1915+105
Qu JL(屈进禄); Lu FJ(卢方军); Lu Y(卢宇); Song LM(宋黎明); Zhang S(张澍); Wang JM(王建民); Qu, JL; Lu, FJ; Lu, Y; Song, LM; Zhang, S; Ding, GQ; Wang, JM
2010
发表期刊ASTROPHYSICAL JOURNAL
卷号710期号:1页码:836-842
通讯作者[Qu, J. L. ; Lu, F. J. ; Lu, Y. ; Song, L. M. ; Zhang, S. ; Wang, J. M.] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Ding, G. Q.] NAOC, Urumqi Observ, Urumqi 830011, Xinjiang, Peoples R China
摘要We present a study of the centroid frequencies and phase lags of quasi-periodic oscillations (QPOs) as functions of photon energy for GRS 1915+105. It is found that the centroid frequencies of the 0.5-10 Hz QPOs and their phase lags are both energy dependent, and there exists an anticorrelation between the QPO frequency and phase lag. These new results challenge the popular QPO models, because none of them can fully explain the observed properties. We suggest that the observed QPO phase lags are partially due to the variation of the QPO frequency with energy, especially for those with frequency higher than 3.5 Hz.
文章类型Article
关键词accretion, accretion disks black hole physics stars: individual (GRS 1915+105) stars: oscillations
学科领域Astronomy & Astrophysics
DOI10.1088/0004-637X/710/1/836
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000273850800065
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被引频次:31[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238576
专题粒子天体物理中心
理论物理室
作者单位中国科学院高能物理研究所
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Qu JL,Lu FJ,Lu Y,et al. THE ENERGY DEPENDENCE OF THE CENTROID FREQUENCY AND PHASE LAG OF THE QUASI-PERIODIC OSCILLATIONS IN GRS 1915+105[J]. ASTROPHYSICAL JOURNAL,2010,710(1):836-842.
APA 屈进禄.,卢方军.,卢宇.,宋黎明.,张澍.,...&Wang, JM.(2010).THE ENERGY DEPENDENCE OF THE CENTROID FREQUENCY AND PHASE LAG OF THE QUASI-PERIODIC OSCILLATIONS IN GRS 1915+105.ASTROPHYSICAL JOURNAL,710(1),836-842.
MLA 屈进禄,et al."THE ENERGY DEPENDENCE OF THE CENTROID FREQUENCY AND PHASE LAG OF THE QUASI-PERIODIC OSCILLATIONS IN GRS 1915+105".ASTROPHYSICAL JOURNAL 710.1(2010):836-842.
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