THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II)
文献类型：期刊论文
| 作者 | Shi, Chang-Sheng1,2,3 ; Zhang, Shuang-Nan1,4,5; Li, Xiang-Dong3,6
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-08-10 |
| 卷号 | 791期号:1 |
| 关键词 | accretion, accretion disks magnetohydrodynamics (MHD) stars: neutron X-rays: binaries |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000339657700016 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6601]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Hainan Univ, Coll Mat Sci & Chem Engn, Hainan 570228, Peoples R China 3.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China 4.Chinese Acad Sci, Key Lab Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China 5.Univ Alabama, Dept Phys, Huntsville, AL 35899 USA 6.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Chang-Sheng,Zhang, Shuang-Nan,Li, Xiang-Dong. THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II)[J]. ASTROPHYSICAL JOURNAL,2014,791(1). |
| APA | Shi, Chang-Sheng,Zhang, Shuang-Nan,&Li, Xiang-Dong.(2014).THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II).ASTROPHYSICAL JOURNAL,791(1). |
| MLA | Shi, Chang-Sheng,et al."THE MAGNETOHYDRODYNAMICAL MODEL OF KILOHERTZ QUASI-PERIODIC OSCILLATIONS IN NEUTRON STAR LOW-MASS X-RAY BINARIES (II)".ASTROPHYSICAL JOURNAL 791.1(2014). |
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来源：国家天文台
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