Institutional Repository of Radio Astronomy Research Laboratory
| Radio Activity of Supermassive Black Holes with Extremely High Accretion Rates | |
Yang, Xiaolong1,2; Yao, Su1,3; Yang, Jun2,4; Ho, Luis C.1,5; An, Tao2; Wang, Ran1,5; Baan, Willem A.6,7; Gu, Minfeng8; Liu, Xiang6 ; Yang, Xiaofeng6; Joshi, Ravi1
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| 2020-12-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 904Issue:2Pages:200 |
| Contribution Rank | 6 |
| Abstract | Radio emission from the high- and super-Eddington accreting active galactic nuclei (AGNs) has various origins: a persistent jet, the magnetized corona, and the wind-like outflows. It is still unclear which is the leading mechanism responsible for the observed radio emission and how the radio emission is related to other characteristic parameters such as the Eddington ratio and black hole mass. In this paper, we present the 5 GHz Very Large Array (VLA) observational results of a sample of 25 extremely high Eddington accreting supermassive black holes (EESBHs, the Eddington ratio lambda(Edd) close to or above 1) in narrow-line Seyfert 1 galaxies, among which 22 sources are detected. Most of the EESBHs show a compact radio structure from a few hundred parsecs to 1 kpc scale. We estimated the lowest star formation rate surface density required for producing the observed radio emission and found that it is higher than the largest value previously detected in circumnuclear starburst galaxies, implying that the radio emission is from the AGN activity. Along with a comparison sample, we find an overall inverse lambda(Edd) correlation ranging from sub- to super-Eddington ratios. The high-Eddington and mildly super-Eddington AGNs (-0.5 < log lambda(Edd) < 0.6) have a radio-to-X-ray luminosity ratio L-R/L-X similar to 10(-5)-10(-4) and a steep radio spectrum, supporting that the radio emission is from transient ejecta (outflows) of corona; however, the jet contribution cannot be entirely ruled out. Our highly super-Eddington sources (log lambda(Edd) greater than or similar to 0.6) have a flatter radio spectrum, along with its low radio luminosity: L-R/L-X similar to 10(-5) ; their radio emission is likely dominated by a magnetized corona, and a radiation-pressure-caused jet is also proposed in this paper. |
| Keyword | Supermassive black holes Active galaxies Jets Active galactic nuclei |
| DOI | 10.3847/1538-4357/abb775 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | LINE SEYFERT 1 ; X-RAY BINARY ; GALACTIC NUCLEI ; SUPERNOVA-REMNANTS ; TIDAL DISRUPTION ; ULTRALUMINOUS STATE ; VLA OBSERVATIONS ; JET DIRECTIONS ; SPECTRAL INDEX ; RAPID GROWTH |
| Funding Project | National Key R&D Program of China[2018YFA0404603] ; National Key R&D Program of China[2016YFA0400702] ; National Key R&D Program of China[2016YFA0400703] ; National Science Foundation of China[11873073] ; National Science Foundation of China[11991052] ; National Science Foundation of China[11721303] ; KIAA-CAS fellowship - Peking University ; KIAA-CAS fellowship - Chinese Academy of Sciences ; Boya fellowship ; Association of Universities for Research in Astronomy, Inc., under NASA[NAS5-26555] ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000595694400001 |
| Publisher | IOP PUBLISHING LTD |
| Funding Organization | National Key R&D Program of China ; National Science Foundation of China ; KIAA-CAS fellowship - Peking University ; KIAA-CAS fellowship - Chinese Academy of Sciences ; Boya fellowship ; Association of Universities for Research in Astronomy, Inc., under NASA ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3741 |
| Collection | 射电天文研究室_星系宇宙学研究团组 |
| Corresponding Author | Yang, Xiaolong |
| Affiliation | 1.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Radio Astron, Shanghai 200030, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 4.Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, SE-43992 Onsala, Sweden 5.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 6.Chinese Acad Sci, Key Lab Radio Astron, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 7.Netherlands Inst Radio Astron ASTRON, NL-7991 PD Dwingeloo, Netherlands 8.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Xiaolong,Yao, Su,Yang, Jun,et al. Radio Activity of Supermassive Black Holes with Extremely High Accretion Rates[J]. ASTROPHYSICAL JOURNAL,2020,904(2):200. |
| APA | Yang, Xiaolong.,Yao, Su.,Yang, Jun.,Ho, Luis C..,An, Tao.,...&Joshi, Ravi.(2020).Radio Activity of Supermassive Black Holes with Extremely High Accretion Rates.ASTROPHYSICAL JOURNAL,904(2),200. |
| MLA | Yang, Xiaolong,et al."Radio Activity of Supermassive Black Holes with Extremely High Accretion Rates".ASTROPHYSICAL JOURNAL 904.2(2020):200. |
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| Yang-2020-Radio Acti（2150KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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