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Insight-HXMT observations of Swift J0243.6+6124: the evolution of RMS pulse fractions at super-Eddington luminosity 期刊论文  OAI收割
Monthly Notices of the Royal Astronomical Society, 2020, 卷号: 497, 页码: 5498-5506
作者:  
HXMT
  |  收藏  |  浏览/下载:50/0  |  提交时间:2022/02/08
stars: neutron  pulsars: individual: Swift J0243.6+6124  X-rays:  binaries  Astrophysics - High Energy Astrophysical Phenomena  Abstract: Based on Insight-HXMT data, we report on the pulse fraction evolution during the 2017-2018 outburst of the newly discovered first Galactic ultraluminous X-ray (ULX) source Swift J0243.6+6124. The pulse fractions of 19 observation pairs selected in the rising and fading phases with similar luminosity are investigated. The results show a general trend of the pulse fraction increasing with luminosity and energy at supercritical luminosity. However, the relative strength of the pulsation between each pair evolves strongly with luminosity. The pulse fraction in the rising phase is larger at luminosity below 7.71 × 1038 erg s-1, but smaller at above. A transition luminosity is found to be energy independent. Such a phenomenon is first confirmed by Insight-HXMT observations and we speculate that it may have relation with the radiation-pressure-dominated accretion disc.  
A Monte Carlo study of the spectra from inhomogeneous accretion flow 期刊论文  OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2017, 卷号: 17, 期号: 8
作者:  
Yu XiaoDi;  Li YaPing;  Xie FuGuo;  Ma RenYi
  |  收藏  |  浏览/下载:20/0  |  提交时间:2021/12/06
State transitions triggered by inverse magnetic field: probably applied in high-mass X-ray binaries? 期刊论文  OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2016, 卷号: 16, 期号: 3
作者:  
Li ShuangLiang;  Yan Zhen
  |  收藏  |  浏览/下载:11/0  |  提交时间:2021/12/06
Variability of the giant X-ray bump in GRB 121027A and its possible origin 期刊论文  OAI收割
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2014, 卷号: 441, 期号: 3, 页码: 2375-2379
Hou, SJ; Gao, H; Liu, T; Gu, WM; Lin, DB; Li, YP; Men, YP; Wu, XF; Lei, WH; Lu, JF
收藏  |  浏览/下载:49/0  |  提交时间:2015/06/03
Revisiting the hot matter in the center of gamma-ray bursts and supernovae 期刊论文  OAI收割
ASTRONOMY & ASTROPHYSICS, 2013, 卷号: 555, 期号: -, 页码: A129
Li, A; Liu, T
收藏  |  浏览/下载:31/0  |  提交时间:2014/04/25
Stability of a hot two-temperature accretion disc with advection 期刊论文  OAI收割
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1997, 卷号: 292, 期号: 1, 页码: 113-119
作者:  
Wu, XB;  Wu, XB , CHINESE ACAD SCI,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA.
  |  收藏  |  浏览/下载:29/0  |  提交时间:2012/08/29
On the relative surface density change of thermally unstable accretion disks 期刊论文  OAI收割
ASTROPHYSICAL JOURNAL, 1997, 卷号: 489, 期号: 1, 页码: 222-226
作者:  
Wu, XB;  Wu, XB , CHINESE ACAD SCI,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA.
  |  收藏  |  浏览/下载:27/0  |  提交时间:2012/08/29