ALMA Reveals a Gas-rich, Maximum Starburst in the Hyperluminous, Dust-obscured Quasar W0533-3401 at z similar to 2.9
文献类型：期刊论文
| 作者 | Fan, Lulu7,8,9; Knudsen, Kirsten K.6; Han, Yunkun3,4,5; Tan, Qing-hua1,2 |
| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2019-12-10 |
| 卷号 | 887期号:1页码:8 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab5059 |
| 通讯作者 | Fan, Lulu(llfan@ustc.edu.cn) |
| 英文摘要 | We present ALMA observations and multiwavelength spectral energy distribution analysis in a Wide-field Infrared Survey Explorer-selected, hyperluminous dust-obscured quasar W0533-3401 at z = 2.9. We derive the physical properties of each of its components, such as molecular gas, stars, dust, and the central supermassive black hole (SMBH). Both the dust continuum at 3 mm and the CO (3-2) line are detected. The derived molecular gas mass M-gas = 8.4 x 10(10) M-circle dot and its fraction f(gas) = 0.7 suggest that W0533-3401 is gas-rich. The star formation rate (SFR) has been estimated to be similar to 3000-7000M(circle dot) yr(-1) by using different methods. The high values of SFR and specific SFR suggest that W0533-3401 is a maximum starburst. The corresponding gas depletion timescales are very short (t(depl) similar to 12-28 Myr). The CO (3-2) emission line is marginally resolved and has a velocity gradient, which is possibly due to a rotating gas disk, gas outflow, or merger. Finally, we infer the black hole mass growth rate of W0533-3401 ((M)over dot(BH) = 49 M-circle dot yr(-1)), which suggests a rapid growth of the central SMBH. The observed black hole to stellar mass ratio M-BH/M-* of W0533-3401, which is dependent on the adopted Eddington ratio, is over one order of magnitude higher than the local value, and is evolving toward the evolutionary trend of unobscured quasars. Our results are consistent with the scenario that W0533-3401, with both a gas-rich maximum starburst and a rapid black hole growth, is experiencing a short transition phase toward an unobscured quasar. |
| WOS关键词 | SUPERMASSIVE BLACK-HOLES ; MOLECULAR GAS ; INFRARED-EMISSION ; INTERSTELLAR DUST ; GALACTIC NUCLEI ; HOST GALAXIES ; BILLION YEARS ; COEVOLUTION ; MODEL ; WISE |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000506001500074 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/35363]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Fan, Lulu |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Radio Astron, 10 Yuanhua Rd, Nanjing 210033, Jiangsu, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, 10 Yuanhua Rd, Nanjing 210033, Jiangsu, Peoples R China 3.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China 4.Chinese Acad Sci, Ctr Astron Megasci, 20A Datun Rd, Beijing 100012, Peoples R China 5.Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China 6.Chalmers Univ Technol, Onsala Space Observ, Dept Space Earth & Environm, SE-43992 Onsala, Sweden 7.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China 8.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China 9.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Lulu,Knudsen, Kirsten K.,Han, Yunkun,et al. ALMA Reveals a Gas-rich, Maximum Starburst in the Hyperluminous, Dust-obscured Quasar W0533-3401 at z similar to 2.9[J]. ASTROPHYSICAL JOURNAL,2019,887(1):8. |
| APA | Fan, Lulu,Knudsen, Kirsten K.,Han, Yunkun,&Tan, Qing-hua.(2019).ALMA Reveals a Gas-rich, Maximum Starburst in the Hyperluminous, Dust-obscured Quasar W0533-3401 at z similar to 2.9.ASTROPHYSICAL JOURNAL,887(1),8. |
| MLA | Fan, Lulu,et al."ALMA Reveals a Gas-rich, Maximum Starburst in the Hyperluminous, Dust-obscured Quasar W0533-3401 at z similar to 2.9".ASTROPHYSICAL JOURNAL 887.1(2019):8. |
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来源：紫金山天文台
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