The correlations between the spin frequencies and kHz QPOs of neutron stars in LMXBs

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	The correlations between the spin frequencies and kHz QPOs of neutron stars in LMXBs
	Yin, HX; Zhang, CM; Zhao, YH; Lei, YJ; Qu, JL; Song, LM; Zhang, F; Lei YJ(雷亚娟); Qu JL(屈进禄); Song LM(宋黎明)
刊名	ASTRONOMY & ASTROPHYSICS
	2007
卷号	471 期号:2 页码:381-384
关键词	X-rays : binaries accretion, accretion disks stars : neutron
通讯作者	Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Inst Astron, Beijing 100039, Peoples R China
英文摘要	Aims. We studied the correlations between spin frequencies and kilohertz quasi-periodic oscillations ( kHz QPOs) in neutron star low-mass X-ray binaries. Methods. The updated data on kHz QPOs and spin frequencies are statistically analyzed. Results. We find that when two simultaneous kHz QPOs are present in the power spectrum, the minimum frequency of upper kHz QPO is at least 1.3 times higher than the spin frequency, i. e. nu(s) < nu(2min)/1.3. We also find that the average kHz QPO peak separation in 6 Atoll sources anti-correlates with the spin frequency in the form = -( 0.19 +/- 0.05)nu(s) + ( 389.40 +/- 21.67) Hz. If we shift this correlation in the direction of the peak separation by a factor of 1.5, this correlation matches the data points of the two accretionpowered millisecond X- ray pulsars, SAX J1808.4- 3658 and XTE J1807-294.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
原文出处	SCI
语种	英语
WOS记录号	WOS:000248545700008
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237251]
专题	高能物理研究所_粒子天体物理中心
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	Yin, HX,Zhang, CM,Zhao, YH,et al. The correlations between the spin frequencies and kHz QPOs of neutron stars in LMXBs[J]. ASTRONOMY & ASTROPHYSICS,2007,471(2):381-384.
APA	Yin, HX.,Zhang, CM.,Zhao, YH.,Lei, YJ.,Qu, JL.,...&张帆.(2007).The correlations between the spin frequencies and kHz QPOs of neutron stars in LMXBs.ASTRONOMY & ASTROPHYSICS,471(2),381-384.
MLA	Yin, HX,et al."The correlations between the spin frequencies and kHz QPOs of neutron stars in LMXBs".ASTRONOMY & ASTROPHYSICS 471.2(2007):381-384.