The Lorentz factor distribution and luminosity function of relativistic jets in AGNs

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	The Lorentz factor distribution and luminosity function of relativistic jets in AGNs
	Liu Y(刘元); Zhang SN(张双南); Liu, Y; Zhang, SN
刊名	ASTROPHYSICAL JOURNAL
	2007
卷号	667 期号:2 页码:724-730
关键词	galaxies : active galaxies : jets galaxies : luminosity function, mass function galaxies : statistics
通讯作者	Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China ; Tsing Hua Univ, Ctr Astrophys, Beijing 100084, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing, Peoples R China ; Univ Alabama, Dept Phys, Huntsville, AL 35899 USA
英文摘要	The observed apparent velocities and luminosities of the relativistic jets in AGNs are significantly different from their intrinsic values, due to strong special relativistic effects. We adopt the maximum likelihood method to determine simultaneously the intrinsic luminosity function and the Lorentz factor distribution of a sample of AGNs. The values of the best-estimated parameters are consistent with the previous results, but with much better accuracy. In previous studies, it was assumed that the shape of the observed luminosity function of Fanaroff-Riley type II radio galaxies is the same as the intrinsic luminosity function of radio-loud quasars. Our results prove the validity of this assumption. We also find that low- and high-redshift groups divided at z = 0.1 are likely to be from different parent populations.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
原文出处	SCI
语种	英语
WOS记录号	WOS:000249699200007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238358]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Liu Y,Zhang SN,Liu, Y,et al. The Lorentz factor distribution and luminosity function of relativistic jets in AGNs[J]. ASTROPHYSICAL JOURNAL,2007,667(2):724-730.
APA	刘元,张双南,Liu, Y,&Zhang, SN.(2007).The Lorentz factor distribution and luminosity function of relativistic jets in AGNs.ASTROPHYSICAL JOURNAL,667(2),724-730.
MLA	刘元,et al."The Lorentz factor distribution and luminosity function of relativistic jets in AGNs".ASTROPHYSICAL JOURNAL 667.2(2007):724-730.