A systematic study of the condensation of the corona and the application for Gamma(2-10) (keV)-L-bol/L-Edd correlation in luminous active galactic nuclei

doi:10.1093/mnras/sty652

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	A systematic study of the condensation of the corona and the application for Gamma(2-10) (keV)-L-bol/L-Edd correlation in luminous active galactic nuclei
	Qiao, Erlin 1,2; Liu, B. F.1,2
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2018-06-01
卷号	477 期号:1 页码:210-218
关键词	accretion, accretion discs black hole physics galaxies: active
ISSN号	0035-8711
DOI	10.1093/mnras/sty652
英文摘要	In this paper, we explained the observed Gamma(2-10 keV)-L-bol/L-Edd correlation in luminous active galactic nuclei within the framework of the condensation of the corona around a supermassive black hole (Liu et al.; Qiao & Liu). Specifically, we systemically test the effects of black hole mass M, the viscosity parameter alpha, and the magnetic parameter beta (with magnetic pressure p(m) = B-2/8 pi = (1 - beta)p(tot), p(tot) = p(gas) + p(m)) on the structure of the accretion disc and the corona, as well as the corresponding emergent spectra. It is found that the hard X-ray photon index Gamma(2-10 keV) nearly does not change with changing black hole mass M, or changing magnetic parameter beta. Meanwhile, it is found that the geometry of the accretion flow, i.e. the relative configuration of the disc and corona, as well as the emergent spectra can be strongly affected by changing the value of alpha. By comparing with a sample composed of 29 luminous active galactic nuclei with well constrained X-ray spectra and Eddington ratios, it is found that the observed Gamma(2-10 keV)-L-bol/L-Edd correlation can be well matched with a relatively bigger value of alpha, i.e. alpha similar to 1, as previously also suggested by Narayan for luminous accreting black holes.
资助项目	National Natural Science Foundation of China[11773037] ; National Natural Science Foundation of China[11673026] ; gravitational wave pilot B[XDB23040100] ; National Program on Key Research and Development Project[2016YFA0400804]
WOS关键词	RECONNECTION-HEATED CORONA ; ACCRETING BLACK-HOLES ; X-RAY BINARIES ; ADVECTION-DOMINATED ACCRETION ; ANGULAR-MOMENTUM TRANSPORT ; MAGNETIC RECONNECTION ; MAGNETOHYDRODYNAMIC SIMULATIONS ; ENERGY-DISTRIBUTIONS ; COMPTON REFLECTION ; SEYFERT-GALAXIES
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000432660300016
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; gravitational wave pilot B ; gravitational wave pilot B ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; gravitational wave pilot B ; gravitational wave pilot B ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; gravitational wave pilot B ; gravitational wave pilot B ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; gravitational wave pilot B ; gravitational wave pilot B ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/21645]
专题	中国科学院国家天文台
通讯作者	Qiao, Erlin
作者单位	1.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Qiao, Erlin,Liu, B. F.. A systematic study of the condensation of the corona and the application for Gamma(2-10) (keV)-L-bol/L-Edd correlation in luminous active galactic nuclei[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,477(1):210-218.
APA	Qiao, Erlin,&Liu, B. F..(2018).A systematic study of the condensation of the corona and the application for Gamma(2-10) (keV)-L-bol/L-Edd correlation in luminous active galactic nuclei.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,477(1),210-218.
MLA	Qiao, Erlin,et al."A systematic study of the condensation of the corona and the application for Gamma(2-10) (keV)-L-bol/L-Edd correlation in luminous active galactic nuclei".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 477.1(2018):210-218.