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Modeling multiband X-ray light curves of the Crab pulsar with the annular and core gap models | |
Bai Jun-Tao1,2; Xu Xin1,2; Lin Quan-Wei1,2; Zhi Qi-Jun1,2; Shang Lun-Hua3; Du Yuan-Jie4; Tuo You-Li5; Dang Shi-Jun6![]() ![]() | |
2021-02-01 | |
Source Publication | NEW ASTRONOMY
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ISSN | 1384-1076 |
Volume | 83Pages:101480 |
Contribution Rank | 6 |
Abstract | Multiwavelength observation is an effective way to test and constrain theoretical models of pulsars. X-ray observations reveal that the light curve of the Crab pulsar has two sharp peaks, with a phase separation of similar to 0.4 spin periods between its first peak (P1) and second peak (P2). Using observations from the Hard X-ray Modulation Telescope (Insight-HXMT) of China, we studied eight-wavelength (from 11 keV to 250 keV) X-ray light curves of the Crab pulsar and found that the phase separation has no significant trend with the energy, while the total intensity ratios of the P2 and bridge emission components to the P1 component have a significant increasing trend with increasing energy. We used three-dimensional magnetospheric models for the core gap (CG) and annular gap (AG) to simulate the eight-wavelength X-ray light curves. It was found that the P1, P2 and bridge emission components at each band can be well reproduced by the two models and that the P1 and P2 emissions could be generated in the AG region, whereas the bridge emission could be generated in the CG region. |
Keyword | pulsars Crab PSR B0531+21 |
DOI | 10.1016/j.newast.2020.101480 |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | RAPIDLY SPINNING PULSARS ; EMISSION ; RADIATION ; PROFILES ; GEOMETRY |
Funding Project | National Key R&D Program of China[2017YFB0503300] ; National Natural Science Foundation[U1731238] ; National Natural Science Foundation[U1831120] ; National Natural Science Foundation[U1838106] ; National Natural Science Foundation[61803373] ; National Natural Science Foundation[11303069] ; National Natural Science Foundation[11373011] ; National Natural Science Foundation[11873080] ; Foundation of Science and Technology of Guizhou Province[[2016]4008] ; Foundation of Science and Technology of Guizhou Province[[2017]5726-37] ; Foundation of Science and Technology of Guizhou Province[[2018]5769-02] ; Foundation of Guizhou Provincial Education Department[KY (2020)003] |
WOS Research Area | Astronomy & Astrophysics |
WOS Subject | Astronomy & Astrophysics |
WOS ID | WOS:000579846400012 |
Publisher | ELSEVIER |
Funding Organization | National Key R&D Program of China ; National Natural Science Foundation ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.xao.ac.cn/handle/45760611-7/3692 |
Collection | 射电天文研究室_脉冲星研究团组 |
Corresponding Author | Zhi Qi-Jun |
Affiliation | 1.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 2.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China 3.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Peoples R China 4.Qian Xuesen Lab Space Technol, 104 You Rd, Beijing 100094, Peoples R China 5.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 7.Peking Univ, Sch Phys, Beijing 100871, Peoples R China |
Recommended Citation GB/T 7714 | Bai Jun-Tao,Xu Xin,Lin Quan-Wei,et al. Modeling multiband X-ray light curves of the Crab pulsar with the annular and core gap models[J]. NEW ASTRONOMY,2021,83:101480. |
APA | Bai Jun-Tao.,Xu Xin.,Lin Quan-Wei.,Zhi Qi-Jun.,Shang Lun-Hua.,...&Qiao Guo-Jun.(2021).Modeling multiband X-ray light curves of the Crab pulsar with the annular and core gap models.NEW ASTRONOMY,83,101480. |
MLA | Bai Jun-Tao,et al."Modeling multiband X-ray light curves of the Crab pulsar with the annular and core gap models".NEW ASTRONOMY 83(2021):101480. |
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