Black hole mass and accretion rate of active galactic nuclei

	Black hole mass and accretion rate of active galactic nuclei
	Wu, Xue-Bing ; Liu, F. K.; Wang, R.; Kong, M. Z.; Han, J. L.
刊名	JOURNAL OF THE KOREAN PHYSICAL SOCIETY
	2006-10-01
卷号	49 期号:4 页码:1764-1770
关键词	black holes quasars active galactic nuclei
英文摘要	The determination of the central black hole mass is crucial to the understanding of active galactic nuclei physics. In this paper, we briefly review some methods that are currently used to estimate the black hole mass of AGNs. Particularly, we demonstrate the importance of two correlations: one between the black hole mass and the stellar velocity dispersion and the other one between the broad line region (BLR) size and the optical continuum luminosity. Besides applying these relations in deriving the black hole masses of various types of AGNs, we also employ the fundamental plane of elliptical galaxies to estimate the central velocity dispersions of AGN host galaxies, and then the black hole masses of AGNs, including BL Lac objects. In addition, we derive another empirical relation between the BLR size and the H-beta emission line luminosity from AGNs with the BLR size measured by reverberation mapping studies, and we argue that more accurate black hole masses of extremely radio-loud AGNs can be obtained with it than by using the usual R - L-5100 angstrom relation because of the jet contribution to the optical continuum. Finally, we point out that black hole mass estimation is very much helpful in determining the accretion rate and in understanding the accretion process in AGNs.
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000241289800008
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7140]
专题	国家天文台_射电天文研究部
作者单位	1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xue-Bing,Liu, F. K.,Wang, R.,et al. Black hole mass and accretion rate of active galactic nuclei[J]. JOURNAL OF THE KOREAN PHYSICAL SOCIETY,2006,49(4):1764-1770.
APA	Wu, Xue-Bing,Liu, F. K.,Wang, R.,Kong, M. Z.,&Han, J. L..(2006).Black hole mass and accretion rate of active galactic nuclei.JOURNAL OF THE KOREAN PHYSICAL SOCIETY,49(4),1764-1770.
MLA	Wu, Xue-Bing,et al."Black hole mass and accretion rate of active galactic nuclei".JOURNAL OF THE KOREAN PHYSICAL SOCIETY 49.4(2006):1764-1770.