Institutional Repository of Radio Astronomy Research Laboratory
| 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
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| 2014-12-01 | |
| Source Publication | ASTROPHYSICS AND SPACE SCIENCE
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| Volume | 354Issue:2Pages:553-560 |
| Contribution Rank | 1 |
| Abstract | A 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. |
| Keyword | Black Hole Physics Galaxies: Jets Quasars: General Accretion Accretion Disks |
| Subtype | Article |
| DOI | 10.1007/s10509-014-2102-9 |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ACTIVE GALACTIC NUCLEI ; OBSERVATIONAL CONSTRAINTS ; ELLIPTIC GALAXIES ; ACCRETION DISKS ; EMISSION-LINE ; SPIN ; MECHANISM ; LOUDNESS ; ENERGY ; FLOWS |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000345395400031 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/583 |
| Collection | 射电天文研究室_星系宇宙学研究团组 射电天文研究室 |
| Affiliation | 1.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 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| 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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| Is radio jet power l（472KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-ND | View Application Full Text | |
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