The inner annular gap for pulsar radiation: gamma-ray and radio emission

	The inner annular gap for pulsar radiation: gamma-ray and radio emission
	Qiao, GJ ; Lee, KJ ; Wang, HG ; Xu, RX ; Han, JL
刊名	ASTROPHYSICAL JOURNAL
	2004-05-01
卷号	606 期号:1 页码:L49-L52
关键词	elementary particles pulsars : general radiation mechanisms : nonthermal stars : neutron
英文摘要	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).
收录类别	SCI
语种	英语
WOS记录号	WOS:000220925900013
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8397]
专题	国家天文台_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
推荐引用方式 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.