Peak luminosity correlated low-frequency oscillations in black holes

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	Peak luminosity correlated low-frequency oscillations in black holes
	Li, Z. B.1 ; Gao, H. Q.2,3; Zhang, Z.2,3 ; Zhang, S.2; Qu, J. L.2; Zhang, C. M.4; Song, L. M.2
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2014-05-01
卷号	440 期号:1 页码:143-149
关键词	accretion accretion discs black hole physics stars: individual: GRO J1655-40 stars: low-mass stars: oscillations X-rays: binaries
通讯作者	Li, Z. B.
英文摘要	Based on Rossi X-ray Timing Explorer (RXTE) observational data, we study the timing and spectral properties of some peculiar low-frequency (LF) quasi-periodic oscillations (QPOs), which have been found at the peak luminosity of the outburst of some transient black hole (BH) binaries: the 2005 outburst of GRO J1655-40, the 2003 outburst of H1743-322 and the 1998 outburst of XTE J1550-564. Appearing in the ultraluminous state, these QPOs from different sources show some common properties. The amplitude is very weak (less than 1 per cent) and the quality factor is larger than 6. Moreover, these QPOs (about several Hz) sometimes show up simultaneously with another QPO (about 10 Hz), but their frequencies are not harmonically related. We also find that the frequencies of these QPOs are inversely correlated with the mass of the BH, which implies that these QPOs might be correlated with the innermost stable circular orbit. The QPO frequency is also negative correlated with the inner disc radius among BHs. However, its frequency is too low to ascribe it to the Keperlian orbit frequency. Moreover, we discuss the physical origin of these QPOs and we suggest that they are not produced by the viscous variability of the inner disc either.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	QUASI-PERIODIC OSCILLATIONS ; NOVA XTE J1550-564 ; X-RAY BINARIES ; RXTE SPECTRAL OBSERVATIONS ; GRO J1655-40 ; ENERGY-DEPENDENCE ; PHASE-LAG ; CENTROID FREQUENCY ; TIMING FEATURES ; GX 339-4
收录类别	SCI
语种	英语
WOS记录号	WOS:000334691900013
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/613]
专题	高能天体物理研究团组新疆天文台_射电天文研究室
作者单位	1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Li, Z. B.,Gao, H. Q.,Zhang, Z.,et al. Peak luminosity correlated low-frequency oscillations in black holes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,440(1):143-149.
APA	Li, Z. B..,Gao, H. Q..,Zhang, Z..,Zhang, S..,Qu, J. L..,...&Song, L. M..(2014).Peak luminosity correlated low-frequency oscillations in black holes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,440(1),143-149.
MLA	Li, Z. B.,et al."Peak luminosity correlated low-frequency oscillations in black holes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 440.1(2014):143-149.