Correlation analysis of radio properties and accretion-disk luminosity for low luminosity AGNs

CORC > 新疆天文台 > 研究单元未命名 > 射电天文研究室 > 星系宇宙学研究团组

	Correlation analysis of radio properties and accretion-disk luminosity for low luminosity AGNs
	Su, Renzhi1,2 ; Liu, Xiang1,3 ; Zhang, Zhen1
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2017
卷号	362 期号:1
关键词	Black hole physics Galaxies: jets Quasars: general Accretion, accretion disks
ISSN号	0004-640X
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
内容类型	期刊论文
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_射电天文研究室
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).