机构

• 高能物理研究所 [1]
• 西安光学精密机械研究... [1]

采集方式

• OAI收割 [2]

内容类型

• 期刊论文 [2]

发表日期

• 2023 [1]
• 2020 [1]

学科主题

筛选

浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 X-ray transmission effects in a high-density dynamic-dusty plasma environment 期刊论文  OAI收割 VACUUM, 2023, 卷号: 212 作者:  Li, Yao;  Yang, Zhiqiang;  Zhang, Yingjun;  Chen, Mingde;  Xia, Fangyuan   |  收藏  |  浏览/下载：34/0  |  提交时间：2023/07/13 X-ray communication  Dynamic -dusty plasma  Pulse X-rays  Bit error ratio   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：44/0  |  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.