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The inner annular gap for pulsar radiation: gamma-ray and radio emission
Qiao, GJ; Lee, KJ; Wang, HG; Xu, RX; Han, JL
2004-05-01
发表期刊ASTROPHYSICAL JOURNAL
卷号606期号:1页码:L49-L52
摘要The inner annular gap (IAG), a new type of inner gap whose magnetic field lines intersect the null charge surface (NCS), is proposed to explain gamma-ray and radio emission from pulsars. The IAG can be an important source for high-energy particles. The particles can radiate between the NCS and the IAG. Some observational characteristics in both gamma-ray and radio bands, such as the Crab-like, Vela-like, and Geminga- like gamma-ray emission beams, can be reproduced by the numerical method. It is predicted that the view angle zeta should be larger than the inclination angle (zeta>alpha), otherwise the gamma-ray radiation will have little possibility to be observed. Whether the IAG ( or cap) is sparking ( or free flow) depends on the surface binding energy of the pulsar. Instead of neutron star models, the scenario of the IAG is favorable for bare strange star models, because bare strange stars can easily satisfy the requisite condition to form an IAG for both pulsars (Omega.B<0) and antipulsars (&UOmega;&BULL;B>0).
关键词Elementary Particles Pulsars : General Radiation Mechanisms : Nonthermal Stars : Neutron
收录类别SCI
语种英语
WOS记录号WOS:000220925900013
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被引频次:49[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8397
专题射电天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Peking Univ, Dept Astron, Beijing 100871, Peoples R China
3.Guangzhou Univ, Ctr Astrophys, Guangzhou, Peoples R China
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Qiao, GJ,Lee, KJ,Wang, HG,et al. The inner annular gap for pulsar radiation: gamma-ray and radio emission[J]. ASTROPHYSICAL JOURNAL,2004,606(1):L49-L52.
APA Qiao, GJ,Lee, KJ,Wang, HG,Xu, RX,&Han, JL.(2004).The inner annular gap for pulsar radiation: gamma-ray and radio emission.ASTROPHYSICAL JOURNAL,606(1),L49-L52.
MLA Qiao, GJ,et al."The inner annular gap for pulsar radiation: gamma-ray and radio emission".ASTROPHYSICAL JOURNAL 606.1(2004):L49-L52.
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