THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II)
Shi, CS; 张双南;Zhang, SN; Li, XD
刊名ASTROPHYSICAL JOURNAL
2014
卷号791期号:1页码:16
关键词accretion, accretion disks magnetohydrodynamics (MHD) stars: neutron X-rays: binaries
学科分类Astronomy & Astrophysics
DOI10.1088/0004-637X/791/1/16
英文摘要We study the kilohertz quasi-periodic oscillations (kHz QPOs) in neutron star low-mass X-ray binaries (LMXBs) with a new magnetohydrodynamics (MHD) model, in which the compressed magnetosphere is considered. The previous MHD model is reexamined and the relation between the frequencies of the kHz QPOs and the accretion rate in LMXBs is obtained. Our result agrees with the observations of six sources (4U 0614+09, 4U 1636-53, 4U 1608-52, 4U 1915-15, 4U 1728-34, and XTE 1807-294) with measured spins. In this model, the kHz QPOs originate from the MHD waves in the compressed magnetosphere. The single kHz QPOs and twin kHz QPOs are produced in two different parts of the accretion disk and the boundary is close to the corotation radius. The lower QPO frequency in a frequency-accretion rate diagram is cut off at a low accretion rate and the twin kHz QPOs encounter a top ceiling at a high accretion rate due to the restriction of the innermost stable circular orbit.
收录类别SCI
WOS记录号WOS:000339657700016
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被引频次:1[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/311005/224847
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
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Shi, CS,张双南;Zhang, SN,Li, XD. THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II)[J]. ASTROPHYSICAL JOURNAL,2014,791(1):16.
APA Shi, CS,张双南;Zhang, SN,&Li, XD.(2014).THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II).ASTROPHYSICAL JOURNAL,791(1),16.
MLA Shi, CS,et al."THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II)".ASTROPHYSICAL JOURNAL 791.1(2014):16.
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