Is radio jet power linearly proportional to the product of central black hole mass and Eddington ratio in AGN?
文献类型：期刊论文
| 作者 | Liu, Xiang1,2; Han, Zhenhua1,3 |
| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 354期号:2页码:553-560 |
| 关键词 | Black hole physics Galaxies: jets Quasars: general Accretion, accretion disks |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; OBSERVATIONAL CONSTRAINTS ; ELLIPTIC GALAXIES ; ACCRETION DISKS ; EMISSION-LINE ; SPIN ; MECHANISM ; LOUDNESS ; ENERGY ; FLOWS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000345395400031 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/15646]  |
| 专题 | 紫金山天文台_暗物质和空间天文实验室 |
| 作者单位 | 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 |
| 推荐引用方式 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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来源：紫金山天文台
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