Correlation analysis of radio properties and accretion-disk luminosity for low luminosity AGNs
文献类型：期刊论文
| 作者 | Su, Renzhi1,2 ; Liu, Xiang1,3; Zhang, Zhen1
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| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 362期号:1 |
| ISSN号 | 0004-640X |
| 关键词 | Black hole physics Galaxies: jets Quasars: general Accretion, accretion disks |
| 英文摘要 | The correlation between the jet power and accretion disk luminosity is investigated and analyzed with our model for 7 samples of low luminosity active galactic nuclei (LLAGNs). The main results are: (1) the power-law correlation index (P-jet proportional to L-disk(mu)) typically ranges mu = 0.4-0.7 for the LLAGN samples, and there is a hint of steep index for the LLAGN sample which hosted by a high fraction of elliptical galaxies, and there are no significant correlation between the mu and the LLAGN types (Seyfert, LINER); (2) for mu approximate to 1, as noted in Liu et al., the accretion disk dominates the jet power and the black hole (BH) spin is not important, for the LLAGN samples studied in this paper we find that the mu is significantly less than unity, implying that BH spin may play a significant role in the jet power of LLAGNs; (3) the BH spin-jet power is negatively correlated with the BH mass in our model, which means a high spin-jet efficiency in the 'low' BH-mass LLAGNs; (4) an anti-correlation between radio loudness and disk luminosity is found, which is apparently due to the flatter power-law index in the jet-disk correlation of the LLAGNs, and the radio loudness can be higher in the LLAGNs than in luminous AGNs/quasars when the BH spin-jet power is comparable to or dominate over the accretion-jet power in the LLAGNs. The high radio-core dominance of the LLAGNs is also discussed. |
| 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 ; DWARF SEYFERT NUCLEI ; SPINNING BLACK-HOLE ; FUNDAMENTAL PLANE ; HOST GALAXIES ; JET POWER ; SAMPLE ; EMISSION ; SEARCH ; OUTFLOWS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000392295900003 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/1422]  |
| 专题 | 星系宇宙学研究团组 新疆天文台_110米口径全可动射电望远镜（SmART）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Renzhi,Liu, Xiang,Zhang, Zhen. Correlation analysis of radio properties and accretion-disk luminosity for low luminosity AGNs[J]. ASTROPHYSICS AND SPACE SCIENCE,2017,362(1). |
| APA | Su, Renzhi,Liu, Xiang,&Zhang, Zhen.(2017).Correlation analysis of radio properties and accretion-disk luminosity for low luminosity AGNs.ASTROPHYSICS AND SPACE SCIENCE,362(1). |
| MLA | Su, Renzhi,et al."Correlation analysis of radio properties and accretion-disk luminosity for low luminosity AGNs".ASTROPHYSICS AND SPACE SCIENCE 362.1(2017). |
入库方式： OAI收割
来源：新疆天文台
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