RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI

	RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI
	Zhang, Jin1 ; Liang, En-Wei 2,3; Sun, Xiao-Na 2,3; Zhang, Bing 4; Lu, Ye 1; Zhang, Shuang-Nan 1,5
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2013-09-01
卷号	774 期号:1
关键词	BL Lacertae objects: general galaxies: jets gamma-ray burst: general methods: statistical quasars: general
英文摘要	Gamma-ray bursts (GRBs) and GeV-TeV-selected radio-loud active galactic nuclei (AGNs) are compared based on our systematic modeling of the observed spectral energy distributions of a sample of AGNs with a single-zone leptonic model. We show that the correlation between the jet power (P-jet) and the prompt gamma-ray luminosity (L-jet) of GRBs is consistent, within the uncertainties, with the correlation between jet power and the synchrotron peak luminosity (L-s,L-jet) of flat spectrum radio quasars (FSRQs). Their radiation efficiencies (epsilon) are also comparable (>10% for most sources), which increase with the bolometric jet luminosity (L-bol,L-jet) for FSRQs and with the L-jet for GRBs with similar power-law indices. BL Lac objects (BL Lacs) do not follow the P-jet-L-s,L-jet relation of FSRQs. They have lower epsilon and L-bol,L-jet values than FSRQs, and a tentative L-bol,L-jet-epsilon relation is also found, with a power-law index different from that of the FSRQs. The magnetization parameters (sigma) of FSRQs are on average larger than that of BL Lacs. They are anti-correlated with epsilon for the FSRQs, but positively correlated with epsilon for the BL Lacs. GeV narrow-line Seyfert 1 galaxies potentially share similar properties with FSRQs. Based on the analogy between GRBs and FSRQs, we suggest that the prompt gamma-ray emission of GRBs is likely produced by the synchrotron process in a magnetized jet with high radiation efficiency, similar to FSRQs. The jets of BL Lacs, on the other hand, are less efficient and are likely more matter-dominated.
收录类别	SCI
语种	英语
WOS记录号	WOS:000323672400005
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6022]
专题	国家天文台_空间科学研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China 3.Guangxi Univ, GXU NAOC Ctr Astrophys & Space Sci, Nanning 530004, Peoples R China 4.Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA 5.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jin,Liang, En-Wei,Sun, Xiao-Na,et al. RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL LETTERS,2013,774(1).
APA	Zhang, Jin,Liang, En-Wei,Sun, Xiao-Na,Zhang, Bing,Lu, Ye,&Zhang, Shuang-Nan.(2013).RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL LETTERS,774(1).
MLA	Zhang, Jin,et al."RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL LETTERS 774.1(2013).