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| 中子星X射线双星中kHz QPO现象的理论解释 | |
| 引用本文： | 王静,张承民,尹红星,宋黎明,屈进禄,雷雅娟,张帆,张国宝,林永峰.中子星X射线双星中kHz QPO现象的理论解释[J].天文学进展,2011,29(3):277-290. |
| 作者姓名： | 王静 张承民 尹红星 宋黎明 屈进禄 雷雅娟 张帆 张国宝 林永峰 |
| 作者单位： | 1. 中国科学院国家天文台,北京,100012 2. 山东大学威海分校空间科学与物理学院,山东,264209 3. 中国科学院高能物理所,北京,100049 4. 清华大学物理系,北京,100084 |
| 基金项目： | 国家自然科学基金，973计划 |
| 摘 要： | 罗西X射线时变探测器(RXTE)在中子星小质量X射线双星中发现了千赫兹准周期振荡现象(kHzQPO)。kHzQPO的频率一般在几百到上千赫兹,其动力学时标与吸积盘最内部区域物质的运动时标一致,因此普遍认为kHz QPO产生于中子星表面附近区域,携带了来自中心中子星及周围强引力场信息,如质量、自转周期、角动量、半径、磁场等。kHz QpO现象的理解为研究强引力场和致密物质状态开启了一扇新的窗口。着重介绍基于kHz QPO的基本现象和相应的理论模型。 |
| 关 键 词： | X射线双星 吸积 中子星 千赫兹准周期振荡(kHz QPO) |
Theoretical Explanation of kHz QPOs in Neutron Star Low-Mass X-Ray Binaries |
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| WANG Jing,ZHANG Cheng-min,YIN Hong-xing,SONG Li-ming,QU Jin-lu,LEI Ya-juan,ZHANG Fan,ZHANG Guo-bao,LIN Yong-feng.Theoretical Explanation of kHz QPOs in Neutron Star Low-Mass X-Ray Binaries[J].Progress In Astronomy,2011,29(3):277-290. | |
| Authors: | WANG Jing ZHANG Cheng-min YIN Hong-xing SONG Li-ming QU Jin-lu LEI Ya-juan ZHANG Fan ZHANG Guo-bao LIN Yong-feng |
| Institution: | WANG Jing~1,ZHANG Cheng-min~1,YIN Hong-xing~2,SONG Li-ming~3,QU Jin-lu~3,LEI Ya-juan~3,ZHANG Fan~3,ZHANG Guo-bao~3,LIN Yong-feng~4 (1.National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China,2.School of Space Science and Physics,Shandong University at Weihai,Weihai 264209,3.Institute of High Energy Physics,Beijing 100039,4.Department of Physics and Tsinghua Center for Astrophysics,Tsinghua University,Beijing 100084,China) |
| Abstract: | In the power density spectrum of neutron star in low mass X-ray binaries(LMXBs), the Rossi X-ray Timing Exploer(RXTE) detected kilohertz quasi-periodic oscillations(kHz QPOs). The frequencies of kHz QPOs range from a few hundreds to thousand,which corresponds to the dynamical time-scale for accreting matter in the inner part of the accretion disk.Therefore,it is generally thought to be occurred in the accretion flow close to the neutron star surface,which brings the information from the central compact star... |
| Keywords: | X-ray binary accretion kHz QPO |
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