External photon fields in Fermi bright blazars

doi:10.1088/1674-4527/11/8/004

YNAO OpenIR > 高能天体物理研究组

	External photon fields in Fermi bright blazars
	Gao XY(高小燕)1,2,3 ; Wang JC(王建成)1,2 ; Zhou M(周明)1,2,3 ; Gao, XY (reprint author), Chinese Acad Sci, Natl Astron Observ Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2011-08
卷号	11 期号:8 页码:902-908
DOI	10.1088/1674-4527/11/8/004
产权排序	第1完成单位
收录类别	SCI
关键词	Galaxies: Active Galaxies: Jets Gamma-rays: Galaxies Radiation Mechanism: Non-thermal
摘要	The external Compton (EC) model is used to study the high energy emission of some blazars, in which the external photon field is considered to dominate inverse Compton radiation. We explore the properties of the external photon field through analyzing the FERMI LAT bright AGN sample within three months of the start of operations in sky-survey mode. In the sample, assuming the high energy radiation of low synchrotron peaked blazars is from the EC process, we find that the external photon parameter U-ext/nu(ext) may not be a constant. Calculating synchrotron and inverse Compton luminosity from the quasi-simultaneous broadband spectral energy distributions, we find that they have an approximately linear relation. This indicates that the ratio of external photon and magnetic energy density is a constant in the comoving frame, implying that the Lorentz factor of the emitting blob depends on the external photon field and magnetic field. The result gives a strong constraint on the dynamic jet model.
项目资助者	National Natural Science Foundation of China [10778702] ; National Basic Research Program of China [2009CB824800] ; Chinese Academy of Sciences [KJCX2-YW-T24]
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1674-4527
URL	查看原文
归档日期	2012-03-05
WOS记录号	WOS:000294232800004
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	RELATIVISTIC MHD SIMULATIONS ; ACTIVE GALACTIC NUCLEI ; HIGH-ENERGY EMISSION ; BROAD-LINE REGION ; TEV GAMMA-RAYS ; EXTRAGALACTIC JETS ; SPACE-TELESCOPE ; AREA TELESCOPE ; 3C 279 ; RADIATION
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5008
专题	高能天体物理研究组
通讯作者	Gao, XY (reprint author), Chinese Acad Sci, Natl Astron Observ Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatories, Chinese Academy of Sciences, kunming, Yunnan province 650011, P.R. China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, kunming, Yunnan province 650011, P.R. China 3.Graduate School, Chinese Academy of Sciences, Beijing, P.R. China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Gao XY,Wang JC,Zhou M,et al. External photon fields in Fermi bright blazars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(8):902-908.
APA	Gao XY,Wang JC,Zhou M,&Gao, XY .(2011).External photon fields in Fermi bright blazars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(8),902-908.
MLA	Gao XY,et al."External photon fields in Fermi bright blazars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.8(2011):902-908.

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