NAOC Open IR  > 月球与深空探测研究部
On the mean radiative efficiency of accreting massive black holes in AGNs and QSOs
Zhang, XiaoXia1,2; Lu, YouJun1,2
2017-10-01
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
Volume60Issue:10
AbstractRadiative efficiency is an important physical parameter that describes the fraction of accretion material converted to radiative energy for accretion onto massive black holes (MBHs). With the simplest Soltan argument, the radiative efficiency of MBHs can be estimated by matching the mass density of MBHs in the local universe to the accreted mass density by MBHs during AGN/QSO phases. In this paper, we estimate the local MBH mass density through a combination of various determinations of the correlations between the masses of MBHs and the properties of MBH host galaxies, with the distribution functions of those galaxy properties. We also estimate the total energy density radiated by AGNs and QSOs by using various AGN/QSO X-ray luminosity functions in the literature. We then obtain several hundred estimates of the mean radiative efficiency of AGNs/QSOs. Under the assumption that those estimates are independent of each other and free of systematic effects, we apply the median statistics as described by Gott et al. and find the mean radiative efficiency of AGNs/QSOs is epsilon = 0.1050(.008)(+0.006), which is consistent with the canonical value similar to 0.1. Considering that about 20% Compton-thick objects may be missed from current available X-ray surveys, the true mean radiative efficiency may be actually similar to 0.12.
SubtypeArticle
KeywordBlack Hole Galaxies Quasars
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Natural Science Foundation of China(11373031 ; National Natural Science Foundation of China(11373031 ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; 11390372) ; 11390372) ; National Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Natural Science Foundation of China(11373031 ; National Natural Science Foundation of China(11373031 ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; 11390372) ; 11390372)
DOI10.1007/s11433-017-9062-1
WOS KeywordACTIVE GALACTIC NUCLEI ; RAY LUMINOSITY FUNCTION ; COSMOLOGICAL EVOLUTION ; ABSORBED AGNS ; DUTY CYCLES ; CONSTRAINTS ; GALAXIES ; BULGES ; MODELS ; GROWTH
Indexed BySCI
Language英语
Funding OrganizationNational Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Natural Science Foundation of China(11373031 ; National Natural Science Foundation of China(11373031 ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; 11390372) ; 11390372) ; National Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Key Program for Science and Technology Research and Development(2016YFA0400704) ; National Natural Science Foundation of China(11373031 ; National Natural Science Foundation of China(11373031 ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; Strategic Priority Program of the Chinese Academy of Sciences(XDB 23040100) ; 11390372) ; 11390372)
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000408429100004
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/20134
Collection月球与深空探测研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, XiaoXia,Lu, YouJun. On the mean radiative efficiency of accreting massive black holes in AGNs and QSOs[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2017,60(10).
APA Zhang, XiaoXia,&Lu, YouJun.(2017).On the mean radiative efficiency of accreting massive black holes in AGNs and QSOs.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,60(10).
MLA Zhang, XiaoXia,et al."On the mean radiative efficiency of accreting massive black holes in AGNs and QSOs".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 60.10(2017).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, XiaoXia]'s Articles
[Lu, YouJun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, XiaoXia]'s Articles
[Lu, YouJun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, XiaoXia]'s Articles
[Lu, YouJun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.