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

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	RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI
	Zhang, J; Liang, EW; Sun, XN; Zhang, B; Lu, Y; Zhang, SN;张双南
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2013
卷号	774 期号:1 页码:L5
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.
学科主题	Astronomy & Astrophysics
收录类别	SCI
WOS记录号	WOS:000323672400005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224740]
专题	高能物理研究所_粒子天体物理中心
推荐引用方式 GB/T 7714	Zhang, J,Liang, EW,Sun, XN,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):L5.
APA	Zhang, J,Liang, EW,Sun, XN,Zhang, B,Lu, Y,&Zhang, SN；张双南.(2013).RADIATION MECHANISM AND JET COMPOSITION OF GAMMA-RAY BURSTS AND GeV-TeV-SELECTED RADIO-LOUD ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL LETTERS,774(1),L5.
MLA	Zhang, J,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):L5.