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

doi:10.1051/0004-6361:20077069

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	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); Zhang F(张帆)
	2007
发表期刊	ASTRONOMY & ASTROPHYSICS
卷号	471 期号:2 页码:381-384
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
文章类型	Article
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.
关键词	X-rays : binaries accretion, accretion disks stars : neutron
学科领域	Astronomy & Astrophysics
DOI	10.1051/0004-6361:20077069
URL	查看原文
语种	英语
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:000248545700008
引用统计
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/237251
专题	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.

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