Analysis of Quasi-periodic Oscillations and Time Lag in Ultraluminous X-Ray Sources with XMM-Newton

doi:10.3847/1538-4357/aa6892

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	Analysis of Quasi-periodic Oscillations and Time Lag in Ultraluminous X-Ray Sources with XMM-Newton
	Xiao, GC; Qu, JL; Yan, LL; Ma, X; Zhang, L; Bu, QC; Zhang, S; Chen, L; Li, ZJ; Qu JL(屈进禄)
刊名	ASTROPHYSICAL JOURNAL
	2017
卷号	839 期号:1 页码:19
关键词	accretion, accretion disks black hole physics X-rays: binaries
ISSN号	0004-637X
DOI	10.3847/1538-4357/aa6892
文献子类	Article
英文摘要	We investigated the power density spectrum (PDS) and time lag of ultraluminous X-ray sources (ULXs) observed by XMM-Newton. We determined the PDSs for each ULX and found that five of them show intrinsic variability due to obvious quasi-periodic oscillations (QPOs) of mHz-1 Hz, consistent with previous reports. We further investigated these five ULXs to determine their possible time lag. The ULX QPOs exhibit a soft time lag that is linearly related to the QPO frequency. We discuss the likelihood of the ULX QPOs being type-C QPO analogs, and the time lag models. The ULXs might harbor intermediate-mass black holes if their. QPOs are type-C QPO analogs. We suggest that the soft lag and the linearity may be due to reverberation.
电子版国际标准刊号	1538-4357
WOS关键词	NGC 5408 X-1 ; BLACK-HOLE MASS ; TIMING-EXPLORER OBSERVATION ; SUPER-EDDINGTON ACCRETION ; ACTIVE GALACTIC NUCLEI ; HOLMBERG-IX X-1 ; CYGNUS X-1 ; GRS 1915+105 ; ENERGY-DEPENDENCE ; NEARBY GALAXIES
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000399251000004
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284708]
专题	高能物理研究所_粒子天体物理中心高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xiao, GC,Qu, JL,Yan, LL,et al. Analysis of Quasi-periodic Oscillations and Time Lag in Ultraluminous X-Ray Sources with XMM-Newton[J]. ASTROPHYSICAL JOURNAL,2017,839(1):19.
APA	Xiao, GC.,Qu, JL.,Yan, LL.,Ma, X.,Zhang, L.,...&李子建.(2017).Analysis of Quasi-periodic Oscillations and Time Lag in Ultraluminous X-Ray Sources with XMM-Newton.ASTROPHYSICAL JOURNAL,839(1),19.
MLA	Xiao, GC,et al."Analysis of Quasi-periodic Oscillations and Time Lag in Ultraluminous X-Ray Sources with XMM-Newton".ASTROPHYSICAL JOURNAL 839.1(2017):19.