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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
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国家天文台 [1]
高能物理研究所 [1]
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OAI收割 [2]
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期刊论文 [2]
发表日期
2018 [2]
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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
  |  
收藏
  |  
浏览/下载:66/0
  |  
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.
Effect of non-stationary accretion on spectral state transitions: An example of a persistent neutron star LMXB 4U 1636-536
期刊论文
OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2018, 卷号: 18, 期号: 3
作者:
Zhang Hui
;
Yu WenFei
  |  
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2021/12/06
X-RAY BINARIES
BLACK-HOLE BINARIES
AQUILA X-1
SOFT STATE
MASS
HYSTERESIS
LUMINOSITY
OUTBURST
BEHAVIOR
TRANSIENTS
accretion, accretion disks
X-rays: binaries
stars: neutron