A two-sided but significantly beamed jet in the supercritical accretion quasar IRAS F11119+3257
文献类型：期刊论文
| 作者 | Yang, Jun5; Paragi, Zsolt4; An, Tao3; Baan, Willem1,2; Mohan, Prashanth3; Liu, Xiang1
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2020-05-01 |
| 卷号 | 494期号:2页码:1744-1750 |
| 关键词 | galaxies: active galaxies: jets quasars: individual: IRAS F11119+3257 radio continuum: galaxies |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/staa836 |
| 通讯作者 | Yang, Jun(jun.yang@chalmers.se) |
| 英文摘要 | Highly accreting quasars are quite luminous in the X-ray and optical regimes; while, they tend to become radio quiet and have optically thin radio spectra. Among the known quasars, IRAS F11119+3257 is a supercritical accretion source because it has a bolometric luminosity slightly above the Eddington limit and extremely powerful X-ray outflows. To probe its radio structure, we investigated its radio spectrum between 0.15 and 96.15 GHz and performed very-long-baseline interferometric (VLBI) observations with the European VLBI Network (EVN) at 1.66 and 4.93 GHz. The deep EVN image at 1.66 GHz shows a two-sided jet with a projected separation about 200 pc and a very high flux density ratio of about 290. Together with the best-fitting value of the integrated spectral index of -1.31 +/- 0.02 in the optically thin part, we infer that the approaching jet has an intrinsic speed at least 0.57 times of the light speed. This is a new record among the known all kinds of super-Eddington accreting sources and unlikely accelerated by the radiation pressure in a certain models. We propose a scenario in which IRAS F11119+3257 is an unusual compact symmetric object with a small jet viewing angle and a radio spectrum peaking at 0.53 +/- 0.06 GHz mainly due to the synchrotron self-absorption. |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; SPECTRUM RADIO-SOURCES ; BLACK-HOLE ; X-RAY ; GALAXIES ; EMISSION ; SKY ; VLA ; ORIGIN ; SAMPLE |
| 资助项目 | Square Kilometer Array (SKA) pre-research funding from the Ministry of Science and Technology of the People's Republic of China[2018YFA0404603] ; Chinese Academy of Sciences (CAS)[114231KYSB20170003] ; EVN project[EY024] ; EVN project[RSY04] ; European Union's Seventh Framework Programme (FP7/2007-2013)[RI261525 NEXPReS] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000535877200016 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Square Kilometer Array (SKA) pre-research funding from the Ministry of Science and Technology of the People's Republic of China ; Chinese Academy of Sciences (CAS) ; EVN project ; European Union's Seventh Framework Programme (FP7/2007-2013) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3500]  |
| 专题 | 星系宇宙学研究团组 射电天文研究室_利用南山26米射电望远镜观测数据的文章 |
| 通讯作者 | Yang, Jun |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Key Lab Radio Astron, 150 Sci 1 St, Urumqi 830011, Peoples R China 2.Netherlands Inst Radio Astron ASTRON, NL-7991 PD Dwingeloo, Netherlands 3.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Radio Astron, Shanghai 200030, Peoples R China 4.Joint Inst VLBI ERIC JIVE, Postbus 2, NL-7990 AA Dwingeloo, Netherlands 5.Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, SE-43992 Onsala, Sweden |
| 推荐引用方式 GB/T 7714 | Yang, Jun,Paragi, Zsolt,An, Tao,et al. A two-sided but significantly beamed jet in the supercritical accretion quasar IRAS F11119+3257[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,494(2):1744-1750. |
| APA | Yang, Jun,Paragi, Zsolt,An, Tao,Baan, Willem,Mohan, Prashanth,&Liu, Xiang.(2020).A two-sided but significantly beamed jet in the supercritical accretion quasar IRAS F11119+3257.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,494(2),1744-1750. |
| MLA | Yang, Jun,et al."A two-sided but significantly beamed jet in the supercritical accretion quasar IRAS F11119+3257".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 494.2(2020):1744-1750. |
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