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Modeling multiband X-ray light curves of the Crab pulsar with the annular and core gap models

文献类型：期刊论文

作者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; Wang Shuang-Qiang6; Zhao Ru-Shuang1,2
刊名NEW ASTRONOMY
出版日期2021-02-01
卷号83页码:101480
ISSN号1384-1076
关键词pulsars Crab PSR B0531+21
DOI10.1016/j.newast.2020.101480
产权排序6
英文摘要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.
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WOS关键词RAPIDLY SPINNING PULSARS ; EMISSION ; RADIATION ; PROFILES ; GEOMETRY
资助项目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研究方向Astronomy & Astrophysics
语种英语
出版者ELSEVIER
WOS记录号WOS:000579846400012
资助机构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
源URL[http://ir.xao.ac.cn/handle/45760611-7/3691]  
专题脉冲星研究团组
通讯作者Zhi Qi-Jun
作者单位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
推荐引用方式
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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来源：新疆天文台

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