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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
Source PublicationASTROPHYSICAL JOURNAL
Volume606Issue:1Pages:L49-L52
AbstractThe 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).
KeywordElementary Particles Pulsars : General Radiation Mechanisms : Nonthermal Stars : Neutron
Indexed BySCI
Language英语
WOS IDWOS:000220925900013
Citation statistics
Cited Times:50[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8397
Collection射电天文研究部
Affiliation1.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
Recommended Citation
GB/T 7714
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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