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Is radio jet power linearly proportional to the product of central black hole mass and Eddington ratio in AGN?
Liu, Xiang1,2; Han, Zhenhua1,3
2014-12-01
Source PublicationASTROPHYSICS AND SPACE SCIENCE
Volume354Issue:2Pages:553-560
AbstractA model for the relation between radio jet power and the product of central black hole (BH) mass and Eddington ratio of AGN is proposed, and the model is examined with data from the literature. We find that radio jet power positively correlates but not linearly with the product of BH mass (m in solar mass) and Eddington ratio (lambda), and the power law indices (mu) are significantly less than unity for relatively low accretion (lambda < 0.1) AGN, P (j) ae(lambda m) (mu) , in the radio galaxies and the Seyfert galaxies. This leads to a negative correlation between radio loudness and lambda m for the low luminosity AGN, i.e. Rae(lambda m) (rho) with rho=(7/6)mu-1 < 0, which may be attributed to a contribution of BH spin to total jet power assuming that the spin induced jet is gradually suppressed as the accretion rate increases. Whereas, for the high-z quasars which often show the slope mu a parts per thousand yen1, a positive correlation between the radio loudness and disc luminosity is predicted. We discuss that the jet powers of the high-z FRII quasars are likely dominated by the accretion disc rather than by the BH spin.
KeywordBlack Hole Physics Galaxies: Jets Quasars: General Accretion, Accretion Disks
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10509-014-2102-9
WOS KeywordACTIVE GALACTIC NUCLEI ; OBSERVATIONAL CONSTRAINTS ; ELLIPTIC GALAXIES ; ACCRETION DISKS ; EMISSION-LINE ; SPIN ; MECHANISM ; LOUDNESS ; ENERGY ; FLOWS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000345395400031
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15625
Collection暗物质和空间天文实验室
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xiang,Han, Zhenhua. Is radio jet power linearly proportional to the product of central black hole mass and Eddington ratio in AGN?[J]. ASTROPHYSICS AND SPACE SCIENCE,2014,354(2):553-560.
APA Liu, Xiang,&Han, Zhenhua.(2014).Is radio jet power linearly proportional to the product of central black hole mass and Eddington ratio in AGN?.ASTROPHYSICS AND SPACE SCIENCE,354(2),553-560.
MLA Liu, Xiang,et al."Is radio jet power linearly proportional to the product of central black hole mass and Eddington ratio in AGN?".ASTROPHYSICS AND SPACE SCIENCE 354.2(2014):553-560.
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