The connections between accretion, jets, and blazar unification

	The connections between accretion, jets, and blazar unification
	Xie GZ(谢光中)1 ; Dai H(戴宏)1,2,3 ; Zhou, SB2
刊名	ASTRONOMICAL JOURNAL
	2007-10
卷号	134 期号:4 页码:1464-1467
关键词	accretion accretion disks galaxies : jets quasars : emission lines quasars : general
ISSN号	0004-6256
通讯作者	Xie, GZ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	For a large sample of quasi- simultaneous spectra of blazars from radio to far- infrared wavelengths, we study the correlations of the luminosity of the broad-line emission ( L-BLR) with the radio core luminosity ( L-R(C)) and the extended radio luminosity ( P-E). A strong correlation between log L-BLR and log L-R(C) is found for 48 blazars, and the slope of the linear regression equation is close to 1. Our results support the hypothesis that blazar jets are powered by energy extraction from a rapidly spinning Kerr black hole through the magnetic field provided by the accretion disk. Using partial correlation regression analysis for the same sample, we find that the linear correlation coefficient between log L-BLR and log L-R(C) is stronger with the effect of the redshift excluded, and the linear correlation coefficient between log L-BLR and log P-E is also significant. The results seem to show that the coupling of the jet and accretion disk is very tight, so that L-BLR also correlates significantly with extended radio luminosity.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ACTIVE GALACTIC NUCLEI ; EXTRAGALACTIC RADIO-SOURCES ; DISK SYMBIOSIS ; QUASARS ; LOUD ; EMISSION ; OBJECTS ; ENERGY ; RATES ; AGN
收录类别	SCI
原文出处	http://iopscience.iop.org/1538-3881/134/4/1464/
语种	英语
WOS记录号	WOS:000249781800014
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/7019]
专题	云南天文台_星系研究组
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 2.Yunnan Astrophysics Center, Yunnan University, Kunming 650091, China 3.The Graduate School of the Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Xie GZ,Dai H,Zhou, SB. The connections between accretion, jets, and blazar unification[J]. ASTRONOMICAL JOURNAL,2007,134(4):1464-1467.
APA	Xie GZ,Dai H,&Zhou, SB.(2007).The connections between accretion, jets, and blazar unification.ASTRONOMICAL JOURNAL,134(4),1464-1467.
MLA	Xie GZ,et al."The connections between accretion, jets, and blazar unification".ASTRONOMICAL JOURNAL 134.4(2007):1464-1467.