Timing analysis of EXO 2030+375 during its 2021 giant outburst observed with Insight-HXMT
文献类型：期刊论文
| 作者 | Fu, Yu-Cong6,7,8; Song, L. M.6,7,8; Ding, G. Q.8 ; Ge, M. Y.6; Tuo, Y. L.6; Zhang, S.6; Zhang, S. N.; Hou, X.4,5; Qu, J. L.6; Zhang, J.6
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2023-03-02 |
| 卷号 | 521期号:1页码:893-901 |
| ISSN号 | 0035-8711 |
| 关键词 | accretion,accretion discs stars:magnetic field pulsars:individual (EXO 2030+375) X-rays:binaries |
| DOI | 10.1093/mnras/stad614 |
| 通讯作者 | Fu, Yu-Cong(fuyucong@xao.ac.cn) ; Song, L. M.(songlm@ihep.ac.cn) ; Ding, G. Q.(dinggq@xao.ac.cn) |
| 英文摘要 | We report the evolution of the X-ray pulsations of EXO 2030+375 during its 2021 outburst using the observations from Insight-HXMT. Based on the accretion torque model, we study the correlation between the spin frequency derivatives and the luminosity. Pulsations can be detected in the energy band of 1-160 keV. The pulse profile evolves significantly with luminosity during the outburst, leading to that the whole outburst can be divided into several parts with different characteristics. The evolution of the pulse profile reveals the transition between the supercritical (fan-beam dominated) and the subcritical accretion (pencil-beam dominated) mode. From the accretion torque model and the critical luminosity model, based on a distance of 7.1 kpc, the inferred magnetic fields are (0.41 - 0.74) x 10(12) and (3.48 - 3.96) x 10(12) G, respectively, or based on a distance of 3.6 kpc, the estimated magnetic fields are (2.4 - 4.3) x 10(13) and (0.98 - 1.11) x 10(12) G, respectively. Two different sets of magnetic fields both support the presence of multipole magnetic fields of the neutron star. |
| WOS关键词 | MAGNETIC NEUTRON-STARS ; PULSAR 4U 0115+63 ; X-RAY TELESCOPE ; SWIFT J0243.6+6124 ; BACKGROUND MODEL ; SMC X-3 ; SPIN-UP ; ACCRETION ; ENERGY ; LUMINOSITY |
| 资助项目 | China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Key Research and Development Program of China[2021YFA0718500] ; Opening Foundation of Xinjiang Key Laboratory[2021D0416] ; Open Program of the Key Laboratory of Xinjiang Uygur Autonomous Region[2020D04049] ; National Natural Science Foundation of China (NSFC)[U1838108] ; National Natural Science Foundation of China (NSFC)[U1838201] ; National Natural Science Foundation of China (NSFC)[U2038104] ; National Natural Science Foundation of China (NSFC)[Y7515570U1] ; National Natural Science Foundation of China (NSFC)[12273100] ; National Natural Science Foundation of China (NSFC)[U2031205] ; CAS Pioneer Hundred Talent Program ; Scientific and Technological innovation project of IHEP[11733009] ; International Partnership Program of Chinese Academy of Sciences[11673023] ; [U1938102] ; [113111KYSB20190020] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000961957300002 |
| 资助机构 | China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Key Research and Development Program of China ; Opening Foundation of Xinjiang Key Laboratory ; Open Program of the Key Laboratory of Xinjiang Uygur Autonomous Region ; National Natural Science Foundation of China (NSFC) ; CAS Pioneer Hundred Talent Program ; Scientific and Technological innovation project of IHEP ; International Partnership Program of Chinese Academy of Sciences |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5480]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Fu, Yu-Cong; Song, L. M.; Ding, G. Q. |
| 作者单位 | 1.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 3.Eberhard Karls Univ Tubingen, Inst Astron & Astrophys, Kepler Ctr Astro & Particle Phys, Sand 1, D-72076 Tubingen, Germany 4.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Peoples R China 5.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China 6.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 7.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China 8.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Yu-Cong,Song, L. M.,Ding, G. Q.,et al. Timing analysis of EXO 2030+375 during its 2021 giant outburst observed with Insight-HXMT[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,521(1):893-901. |
| APA | Fu, Yu-Cong.,Song, L. M..,Ding, G. Q..,Ge, M. Y..,Tuo, Y. L..,...&Xiao, Y. X..(2023).Timing analysis of EXO 2030+375 during its 2021 giant outburst observed with Insight-HXMT.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,521(1),893-901. |
| MLA | Fu, Yu-Cong,et al."Timing analysis of EXO 2030+375 during its 2021 giant outburst observed with Insight-HXMT".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 521.1(2023):893-901. |
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