Pulsar giant pulse: Coherent instability near light cylinder

doi:10.1007/s11433-018-9334-y

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	Pulsar giant pulse: Coherent instability near light cylinder
	Wang, WeiYang 6,7,8,9; Lu, JiGuang 10,11; Zhang, SongBo 1,3,7,12; Chen, XueLei 4,6,7; Luo, Rui 2,5; Xu, RenXin 2,8,9
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2019-07-01
卷号	62 期号:7 页码:10
关键词	neutron star pulsar radiation mechanisms instabilities in plasmas
ISSN号	1674-7348
DOI	10.1007/s11433-018-9334-y
英文摘要	Giant pulses (GPs) are extremely bright individual pulses of radio pulsar. In microbursts of Crab pulsar, which is an active GP emitter, zebra-pattern-like spectral structures are observed, which are reminiscent of the zebra bands that are observed in type IV solar radio flares. However, band spacing linearly increases with the band center frequency of approximate to 5-30 GHz. In this study, we propose that the Crab pulsar GP can originate from the coherent instability of plasma near a light cylinder. Further, the growth of coherent instability can be attributed to the resonance observed between the cyclotron-resonant-excited wave and the background plasma oscillation. The particles can be injected into the closed-field line regions owing to magnetic reconnection near a light cylinder. These particles introduce a large amount of free energy that further causes cyclotron-resonant instability, which grows and amplifies radiative waves at frequencies close to the electron cyclotron harmonics that exhibit zebra-pattern-like spectral band structures. Further, these structures can be modulated by the resonance between the cyclotron-resonant-excited wave and the background plasma oscillation. In this scenario, the band structures of the Crab pulsar can be well fitted by a coherent instability model, where the plasma density of a light cylinder should be similar to 10(13-15) cm(-3), with an estimated gradient of >5:5 x 10(5) cm(-4). This process may be accompanied by high-energy emissions. Similar phenomena are expected to be detected in other types of GP sources that have magnetic fields of similar or equal to 10(6) G in a light cylinder.
资助项目	China Program of International ST Cooperation[2016YFE 0100300] ; National Natural Science Foundation of China[11473044] ; National Natural Science Foundation of China[11633004] ; National Natural Science Foundation of China[11653003] ; National Natural Science Foundation of China[11225314] ; National Natural Science Foundation of China[U15311243] ; National Natural Science Foundation of China[11673002] ; National Natural Science Foundation of China[U1531243] ; National Natural Science Foundation of China[11573039] ; National Natural Science Foundation of China[11661161015] ; National Natural Science Foundation of China[11790301] ; Chinese Academy of Sciences[QYZDJ-SSW-SLH017] ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Basic Research Program of China[2015CB857101] ; National Basic Research Program of China[XDB23010200] ; National Basic Research Program of China[11690024] ; National Basic Research Program of China[11373011] ; Max-Planck Partner Group ; National Key R&D Program of China[2017YFA0402602] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB23010200] ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS)
WOS关键词	ELECTRON-CYCLOTRON MASER ; FAST RADIO-BURST ; MULTIFREQUENCY OBSERVATIONS ; CRAB PULSAR ; EMISSION ; PLASMA ; GENERATION ; TURBULENCE ; TELESCOPE ; ORIGIN
WOS研究方向	Physics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000460802400001
资助机构	China Program of International ST Cooperation ; China Program of International ST Cooperation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Basic Research Program of China ; National Basic Research Program of China ; Max-Planck Partner Group ; Max-Planck Partner Group ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) ; China Program of International ST Cooperation ; China Program of International ST Cooperation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Basic Research Program of China ; National Basic Research Program of China ; Max-Planck Partner Group ; Max-Planck Partner Group ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) ; China Program of International ST Cooperation ; China Program of International ST Cooperation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Basic Research Program of China ; National Basic Research Program of China ; Max-Planck Partner Group ; Max-Planck Partner Group ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) ; China Program of International ST Cooperation ; China Program of International ST Cooperation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Basic Research Program of China ; National Basic Research Program of China ; Max-Planck Partner Group ; Max-Planck Partner Group ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS)
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/25300]
专题	中国科学院国家天文台
通讯作者	Wang, WeiYang
作者单位	1.Australia Telescope Natl Facil, CSIRO Astron & Space Sci, Epping, NSW 1710, Australia 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Univ Western Australia, Int Ctr Radio Astron Res, Crawley, WA 6009, Australia 4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 5.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 6.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 8.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 9.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 10.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Wang, WeiYang,Lu, JiGuang,Zhang, SongBo,et al. Pulsar giant pulse: Coherent instability near light cylinder[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2019,62(7):10.
APA	Wang, WeiYang,Lu, JiGuang,Zhang, SongBo,Chen, XueLei,Luo, Rui,&Xu, RenXin.(2019).Pulsar giant pulse: Coherent instability near light cylinder.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,62(7),10.
MLA	Wang, WeiYang,et al."Pulsar giant pulse: Coherent instability near light cylinder".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 62.7(2019):10.