Disk-corona equilibrium and its relation to galactic nuclear activity

	Disk-corona equilibrium and its relation to galactic nuclear activity
	Liu BF(刘碧芳); Meyer-Hofmeister, E; Meyer, F; Liu BF(刘碧芳)
	2001
会议名称	International Meeting on Physics of Galaxy Formation
会议日期	2000-07-03
会议地点	UNIV TSUKUBA, TSUKUBA, JAPAN
卷号	222
页码	351-354
通讯作者	Liu, BF (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
英文摘要	We investigate the structure of corona above thin disk around supermassive black hole, based on the disk evaporation model (Meyer & Meyer-Hofmeister 1994). The properties are found to be similar to that in stellar systems. Equilibrium between the corona and thin disk determines transitions from accretion via thin disk to coronal flow/ADAF. The mode of dominant accretion process, and the transition radius, depends on the mass accretion rate tin units of Eddington rate). The prediction is consistent with observations for several specific objects. We propose that different states of nuclear activities from underluminous elliptical galaxies to luminous AGNs arise from different accretion modes, which is determined by the equilibrium between disk and corona.
收录类别	CPCI
产权排序	第一完成单位
会议主办者	UNIV TSUKUBA
会议网址	http://adsabs.harvard.edu/abs/2001ASPC..222..351L
会议录	ASTRONOMICAL SOCIETY OF THE PACIFIC (ASP) CONFERENCE SERIES - PHYSICS OF GALAXY FORMATION, PROCEEDINGS
会议录出版者	ASTRONOMICAL SOC PACIFIC
会议录出版地	390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
学科主题	Astronomy & Astrophysics
语种	英语
ISBN号	1-58381-054-4
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/183]
专题	云南天文台_高能天体物理研究组
通讯作者	Liu BF(刘碧芳)
作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Liu BF,Meyer-Hofmeister, E,Meyer, F,et al. Disk-corona equilibrium and its relation to galactic nuclear activity[C]. 见:International Meeting on Physics of Galaxy Formation. UNIV TSUKUBA, TSUKUBA, JAPAN. 2000-07-03.http://adsabs.harvard.edu/abs/2001ASPC..222..351L.