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

doi:10.1016/j.newast.2020.101480

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	Modeling multiband X-ray light curves of the Crab pulsar with the annular and core gap models
	Bai Jun-Tao 5,6; Xu Xin 5,6; Lin Quan-Wei 5,6; Zhi Qi-Jun 5,6; Shang Lun-Hua 7; Du Yuan-Jie 1; Tuo You-Li 4; Dang Shi-Jun 3; Wang Shuang-Qiang 3; Zhao Ru-Shuang 5,6
刊名	NEW ASTRONOMY
	2021-02-01
卷号	83 页码:101480
关键词	pulsars Crab PSR B0531+21
ISSN号	1384-1076
DOI	10.1016/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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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关键词	RAPIDLY SPINNING PULSARS ; EMISSION ; RADIATION ; PROFILES ; GEOMETRY
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
内容类型	期刊论文
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.Qian Xuesen Lab Space Technol, 104 You Rd, Beijing 100094, Peoples R China 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 5.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 6.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China 7.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, 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.