A Quasar Shedding Its Dust Cocoon at Redshift 2 | |
Yi WM(易卫敏)9,10,11; Brandt, W. N.1,10,12; Ni, Q.10; Ho, Luis C.2,3; Luo, Bin4; Yan, Wei10; Schneider, D. P.10,12; Paul, Jeremiah D.5; Plotkin, Richard M.5; Yang, Jinyi6 | |
刊名 | ASTROPHYSICAL JOURNAL |
2022-05-01 | |
卷号 | 930期号:1 |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/ac6109 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | We present the first near-IR spectroscopy and joint analyses of multiwavelength observations for SDSS J082747.14+425241.1, a dust-reddened, weak broad emission-line quasar (WLQ) undergoing a remarkable broad-absorption line (BAL) transformation. The systemic redshift is more precisely measured to be z = 2.070 +/- 0.001 using H beta compared to z = 2.040 +/- 0.003 using Mg ii from the literature, signifying an extreme Mg ii blueshift of 2140 +/- 530 km s(-1) relative to H beta. Using the H beta-based single-epoch scaling relation with a systematic uncertainty of 0.3 dex, its black hole (BH) mass and Eddington ratio are estimated to be M (BH) similar to 6.1 x 10(8) M (circle dot) and lambda (Edd) similar to 0.71, indicative of being in a rapidly accreting phase. Our investigations confirm the WLQ nature and the LoBAL -> HiBAL transformation, along with a factor of 2 increase in the Mg ii+Fe ii emission strength and a decrease of 0.1 in E(B - V) over two decades. The kinetic power of this LoBAL wind at R similar to 15 pc from its BH is estimated to be similar to 43% of the Eddington luminosity, sufficient for quasar feedback upon its host galaxy albeit with an order-of-magnitude uncertainty. This quasar provides a clear example of the long-sought scenario where LoBAL quasars are surrounded by dust cocoons, and wide-angle nuclear winds play a key role in the transition of red quasars evolving into the commonly seen blue quasars. |
学科主题 | 天文学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | NSFNational Science Foundation (NSF)[AST-2106990] ; NSFNational Science Foundation (NSF)[GO0-21080X] ; V.M. Willaman Endowment at Penn State ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11703076] ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11721303] ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11991052] ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11991053] ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11991051] ; West Light Foundation of The Chinese Academy of SciencesChinese Academy of Sciences[Y6XB016001] ; China Manned Space Project[CMS-CSST-2021-A06] ; Gemini Observatory (PI: Yi)[GN-2018B-FT-214] ; Gemini Observatory (PI: Yi)[GN-2020A-FT-203] ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program The Emergence of Cosmological Structures)[XDB09000000] ; Ministry of Finance ; University of Texas at Austin McDonald Observatory and Department of Astronomy ; Pennsylvania State University ; Alfred P. Sloan FoundationAlfred P. Sloan Foundation ; National Science FoundationNational Science Foundation (NSF) ; US Department of Energy Office of ScienceUnited States Department of Energy (DOE) |
WOS关键词 | BROAD ABSORPTION-LINE ; DIGITAL SKY SURVEY ; O III EMISSION ; REDDENED QUASARS ; LARGE-SAMPLE ; H-ALPHA ; WINDS ; RED ; SPECTROSCOPY ; FEEDBACK |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000788780500001 |
资助机构 | NSFNational Science Foundation (NSF)[AST-2106990, GO0-21080X] ; V.M. Willaman Endowment at Penn State ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11703076, 11721303, 11991052, 11991053, 11991051] ; West Light Foundation of The Chinese Academy of SciencesChinese Academy of Sciences[Y6XB016001] ; China Manned Space Project[CMS-CSST-2021-A06] ; Gemini Observatory (PI: Yi)[GN-2018B-FT-214, GN-2020A-FT-203] ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program The Emergence of Cosmological Structures)[XDB09000000] ; Ministry of Finance ; University of Texas at Austin McDonald Observatory and Department of Astronomy ; Pennsylvania State University ; Alfred P. Sloan FoundationAlfred P. Sloan Foundation ; National Science FoundationNational Science Foundation (NSF) ; US Department of Energy Office of ScienceUnited States Department of Energy (DOE) |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25082] |
专题 | 云南天文台_丽江天文观测站(南方基地) |
通讯作者 | Yi WM(易卫敏) |
作者单位 | 1.Department of Physics, 104 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA; 2.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China; 3.Department of Astronomy, Peking University, Yi He Yuan Lu 5, Hai Dian District, Beijing 100871, People's Republic of China; 4.School of Astronomy and Space Science, Nanjing University, Nanjing, Jiangsu 210093, People's Republic of China; 5.Department of Physics, University of Nevada, Reno, NV 89557, USA; 6.Steward Observatory, University of Arizona, Tucson, AZ 85721-0065, USA; 7.CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China; 8.School of Physics & Astronomy, Sun Yat-Sen University, Zhuhai 519000, People's Republic of China 9.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, People's Republic of China; ywm@ynao.ac.cn; 10.Department of Astronomy & Astrophysics, The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA; |
推荐引用方式 GB/T 7714 | Yi WM,Brandt, W. N.,Ni, Q.,et al. A Quasar Shedding Its Dust Cocoon at Redshift 2[J]. ASTROPHYSICAL JOURNAL,2022,930(1). |
APA | Yi WM.,Brandt, W. N..,Ni, Q..,Ho, Luis C..,Luo, Bin.,...&Bai JM.(2022).A Quasar Shedding Its Dust Cocoon at Redshift 2.ASTROPHYSICAL JOURNAL,930(1). |
MLA | Yi WM,et al."A Quasar Shedding Its Dust Cocoon at Redshift 2".ASTROPHYSICAL JOURNAL 930.1(2022). |
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