The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample

doi:10.3390/universe6050068

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	The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample
	Liu, Xiang 1,4; Chang, Ning 3,4; Han, Zhenhua 2; Wang, Xin 3,4
刊名	UNIVERSE
	2020-05-01
卷号	6 期号:5 页码:68
关键词	Seyfert galaxies accretion rate jet power jet-disk coupling
DOI	10.3390/universe6050068
产权排序	1
英文摘要	We analyze the jet-disk coupling for different subsamples from a complete hard X-ray Seyfert sample to study the coupling indices and their relation to accretion rate. The results are: (1) the power-law coupling index ranges from nearly unity (linear correlation) for radio loud Seyferts to significantly less than unity for radio quiet ones. This decline trend of coupling index also holds from larger sources to compact ones; (2) the Seyferts with intermediate to high accretion rate (Eddington ratio lambda similar to 0.001 to 0.3) show a linear jet-disk coupling, but it shallows from near to super Eddington (lambda similar to 0.3 to 10), and the former is more radio loud than the latter; (3) the Seyfert 1s are slightly steeper than the Seyfert 2s, in the jet-disk correlation. In the linear coupling regime, the ratio of jet efficiency to radiative efficiency (eta/epsilon) is nearly invariant, but in low accretion or super accretion regime, eta/epsilon varies with lambda in our model. We note that a radio-active cycle of accretion-dominated active galactic nuclei would be: from a weaker jet-disk coupling in lambda<0.001 for low luminosity Seyferts, to a linear coupling in 0.001
URL标识	查看原文
资助项目	National Key R&D Program of China[2018YFA0404602] ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences
WOS关键词	ACTIVE GALACTIC NUCLEI ; BLACK-HOLE MASS ; ACCRETION FLOWS ; RADIO LOUDNESS ; CONSTRAINTS ; EMISSION ; POWER ; SKY
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000541005200010
资助机构	National Key R&D Program of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3534]
专题	星系宇宙学研究团组
通讯作者	Liu, Xiang
作者单位	1.Qiannan Normal Univ Nationalities, Phys & Astron Dept, Duyun 558000, Peoples R China 2.Xinjiang Normal Univ, Phys & Elect Engn Dept, Urumqi 830000, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiang,Chang, Ning,Han, Zhenhua,et al. The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample[J]. UNIVERSE,2020,6(5):68.
APA	Liu, Xiang,Chang, Ning,Han, Zhenhua,&Wang, Xin.(2020).The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample.UNIVERSE,6(5),68.
MLA	Liu, Xiang,et al."The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample".UNIVERSE 6.5(2020):68.