Low-mass Active Galactic Nuclei on the Fundamental Plane of Black Hole Activity

doi:10.3847/1538-4357/aac32b

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	Low-mass Active Galactic Nuclei on the Fundamental Plane of Black Hole Activity
	Qian,Lei 1,2; Dong,Xiao-Bo 2,3,4; Xie,Fu-Guo 2,5; Liu,Wenjuan 2,3,4; Li,Di 1,2
刊名	The Astrophysical Journal
	2018-06-20
卷号	860 期号:2
关键词	black hole physics galaxies: active galaxies: jets radio continuum: galaxies X-rays: galaxies
ISSN号	0004-637X
DOI	10.3847/1538-4357/aac32b
英文摘要	Abstract It is widely known that in active galactic nuclei (AGNs) and black hole X-ray binaries (BHXBs), there is a tight correlation among their radio luminosity (LR), X-ray luminosity (LX), and BH mass ( ), the so-called “fundamental plane” (FP) of BH activity. Yet the supporting data are very limited in the regime between stellar mass (i.e., BHXBs) and 106.5 (namely, the lower bound of supermassive BHs in common AGNs). In this work, we developed a new method to measure the 1.4 GHz flux directly from the images of the VLA FIRST survey, and apply it to the type-1 low-mass AGNs in the Dong et al. sample. As a result, we obtained 19 new low-mass AGNs for FP research with both estimates ( ?≈?105.5–6.5 ), reliable X-ray measurements, and (candidate) radio detections, tripling the number of such candidate sources in the literature. Most (if not all) of the low-mass AGNs follow the standard radio/X-ray correlation and the universal FP relation fitted with the combined data set of BHXBs and supermassive AGNs by Gültekin et al.; the consistency in the radio/X-ray correlation slope among those accretion systems supports the picture that the accretion and ejection (jet) processes are quite similar in all accretion systems of different . In view of the FP relation, we speculate that the radio loudness (i.e., the luminosity ratio of the jet to the accretion disk) of AGNs depends not only on Eddington ratio, but probably also on .
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-637X-860-2-AAC32B
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/32061]
专题	中国科学院上海天文台
作者单位	1.CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China; lqian@nao.cas.cn 2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing, 100012, People’s Republic of China 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, People’s Republic of China; xbdong@ynao.ac.cn 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, Yunnan, 650011, People’s Republic of China 5.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China; fgxie@shao.ac.cn
推荐引用方式 GB/T 7714	Qian,Lei,Dong,Xiao-Bo,Xie,Fu-Guo,et al. Low-mass Active Galactic Nuclei on the Fundamental Plane of Black Hole Activity[J]. The Astrophysical Journal,2018,860(2).
APA	Qian,Lei,Dong,Xiao-Bo,Xie,Fu-Guo,Liu,Wenjuan,&Li,Di.(2018).Low-mass Active Galactic Nuclei on the Fundamental Plane of Black Hole Activity.The Astrophysical Journal,860(2).
MLA	Qian,Lei,et al."Low-mass Active Galactic Nuclei on the Fundamental Plane of Black Hole Activity".The Astrophysical Journal 860.2(2018).