The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample
文献类型：期刊论文
| 作者 | Liu, Xiang3,4 ; Chang, Ning2,4; Han, Zhenhua1; Wang, Xin2,4
|
| 刊名 | UNIVERSE
 |
| 出版日期 | 2020-05-01 |
| 卷号 | 6期号:5页码:9 |
| 关键词 | Seyfert galaxies accretion rate jet power jet-disk coupling |
| DOI | 10.3390/universe6050068 |
| 通讯作者 | Liu, Xiang(liux@xao.ac.cn) |
| 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 |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; BLACK-HOLE MASS ; ACCRETION FLOWS ; RADIO LOUDNESS ; CONSTRAINTS ; EMISSION ; POWER ; SKY |
| 资助项目 | National Key R&D Program of China[2018YFA0404602] ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000541005200010 |
| 出版者 | MDPI |
| 资助机构 | National Key R&D Program of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3534]  |
| 专题 | 星系宇宙学研究团组 太阳物理研究室_太阳物理研究团组 |
| 通讯作者 | Liu, Xiang |
| 作者单位 | 1.Xinjiang Normal Univ, Phys & Elect Engn Dept, Urumqi 830000, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Qiannan Normal Univ Nationalities, Phys & Astron Dept, Duyun 558000, 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):9. |
| 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),9. |
| MLA | Liu, Xiang,et al."The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample".UNIVERSE 6.5(2020):9. |
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来源：新疆天文台
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