中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
高能物理研究所 [3]
采集方式
OAI收割 [3]
内容类型
期刊论文 [2]
学位论文 [1]
发表日期
2020 [1]
2018 [1]
2006 [1]
学科主题
粒子物理与原子核物理 [1]
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Introducing a special collection of papers in the Journal of High Energy Astrophysics on the Early Results of China's 1st X-ray Astronomy Satellite: Insight-HXMT
期刊论文
OAI收割
Journal of High Energy Astrophysics, 2020, 卷号: 27, 页码: 51-52
作者:
HXMT
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收藏
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浏览/下载:56/0
  |  
提交时间:2022/02/08
Astrophysics - High Energy Astrophysical Phenomena
Abstract: Insight-HXMT is the first Chinese X-ray astronomical mission, launched successfully on June 15, 2017, from China's Jiuquan Satellite Launch Center. Insight-HXMT was designed to have a broad energy coverage in X-rays, from 1-250 keV, with excellent timing and adequate energy resolution at soft X-rays, and the largest effective area at hard X-rays. This allows, in particular, to observe bright sources like X-ray binaries (XRBs) in their bright/outburst states with high cadence and high statistics at hard and soft X-rays at once. It was then expected that the Insight-HXMT mission will bring us new insights regarding the characteristics of several source classes. Examples include characterizing High-Mass X-ray Binaries (HMXBs) and the outburst evolution of Low-Mass X-ray Binaries (LMXBs). For instance, in HMXB systems, the region around their Alfven radius that is responsible to determine whether accretion or propeller occurs, or the region around the NS magnetic pole where the intense X-rays are supposed to be produced are specially appealing targets of study. For the LMXBs, the evolution the outburst and the properties of the compact objects themselves are obvious priority targets for Insight-HXMT. Due to the broad coverage in energy, Insight-HXMT is specially well suited to study the influence of thermonuclear (type-I) X-ray bursts upon the surrounding environment.
A New Set of Parameters of High-Mass X-ray Binaries Found with their Cyclotron Lines
期刊论文
OAI收割
arXiv e-prints, 2018
作者:
Zhang, Chengmin
;
Taani, Ali
;
Chaty, Sylvain
;
Karino, Shigeyuki
;
Song, Liming
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收藏
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浏览/下载:89/0
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提交时间:2019/07/12
Astrophysics - High Energy Astrophysical Phenomena
Abstract: We have derived new physical quantities for several High-Mass X-ray Binaries (HMXBs) with supergiant (SG) companions through their cyclotron lines. The parameters are: the terminal velocity of the wind, the mass loss rate of the donor, the effective temperature and the magnetic fields. These parameters influence significantly the improvement of the model of accretion. In spite of the variety of their observational properties, the corresponding magnetic field is around B ~ 10^12 G. This result can be constrained by the effects on stellar evolution. In addition, we have performed a segmentation in the parameter space of donors intended for several SG-HMXB listed in our sample set. The parameter space can be categorized into five regimes depending on the possibility of disk formation associated with accretion from the stellar wind. This can give a quantitative clarification of the observed variability and the properties of these objects. We show that, when these systems come into the direct accretion region, systems with corresponding parameters can emit X-rays.
硕士论文-X射线双星的RXTE卫星观测数据分析
学位论文
OAI收割
硕士, 北京: 中国科学院研究生院, 2006
作者:
收藏
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浏览/下载:98/0
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提交时间:2015/10/12
X射线双星
X射线脉冲星
RXTE
HMXB
4U
1901+03