Role of the companion lensing galaxy in the CLASS gravitational lens B1152+199
文献类型：期刊论文
| 作者 | Zhang, M.3,4 ; Yuan, Q.2,4; Liu, J-Y2,4; Zhang, L.1
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2022-02-04 |
| 卷号 | 511期号:1页码:1085-1103 |
| ISSN号 | 0035-8711 |
| 关键词 | gravitational lensing: strong galaxies: jets galaxies: structure dark matter |
| DOI | 10.1093/mnras/stac087 |
| 通讯作者 | Zhang, M.(mgnahz@gmail.com) |
| 英文摘要 | We reinvestigate the Cosmic Lens All-Sky Survey (CLASS) gravitational lens B1152+199 using archived Hubble Space Telescope (HST) data and Very Long Baseline Interferometry (VLBI) data. A consistent luminosity ratio within effective radius between the host galaxy and the X-galaxy is measured from HST tri-band images, which leads to a mass ratio between the two galaxies as r(b) similar to 2. To determine the role of the X-galaxy in the lens system, we modelled the dual-lens system with constraints from the VLBI-resolved jet components and the HST images. The 8.4-GHz global-VLBI data currently provide the most stringent constraints to the mass model, especially to the radial power-law slope. The optimized models for this two-image three-component radio lens favour a steeper-than-isothermal inner slope. The jet bending in image B was also investigated and it turned out to be rather a misalignment than a curvature. The goodness-of-fit indicates that the role of the X-galaxy is crucial in the lens system if three pairs of resolved jet components are to be fitted. When we imported the optimal model from radio constraints to optical modelling with the HST tri-band data, the optimization kept the consistency of the optimal model and successfully reproduced the features observed in the HST images. This implies that the diffuse emission discovered in the HST images is actually a detection of the secondary lensing effects from the companion lens. |
| WOS关键词 | DARK-MATTER SUBSTRUCTURE ; EDGE-ON DISC ; MASS SUBSTRUCTURE ; ACS SURVEY ; SYSTEM ; SHARP ; RADIO ; DECOMPOSITION ; UNIVERSALITY ; B1422+231 |
| 资助项目 | National Science Foundation of China[12173078] ; National Science Foundation of China[11773062] ; West Light Foundation of Chinese Academy of Sciences[2017-XBQNXZ-A-008] ; EVN project[BB133] ; EVN project[GJ010] ; EVN project[BW084] ; EVN project[GA036] ; NASA[NAS 5-26555] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000770034100006 |
| 资助机构 | National Science Foundation of China ; West Light Foundation of Chinese Academy of Sciences ; EVN project ; NASA |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4531]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Zhang, M. |
| 作者单位 | 1.Guizhou Univ, Coll Big Data & Informat Engn, Guiyang 550025, Peoples R China 2.Univ Chinese Acad Sci, 19A Liequan Rd, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 831001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, M.,Yuan, Q.,Liu, J-Y,et al. Role of the companion lensing galaxy in the CLASS gravitational lens B1152+199[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2022,511(1):1085-1103. |
| APA | Zhang, M.,Yuan, Q.,Liu, J-Y,&Zhang, L..(2022).Role of the companion lensing galaxy in the CLASS gravitational lens B1152+199.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,511(1),1085-1103. |
| MLA | Zhang, M.,et al."Role of the companion lensing galaxy in the CLASS gravitational lens B1152+199".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 511.1(2022):1085-1103. |
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