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The Physical Constraints on a New LoBAL QSO at z=4.82

文献类型：期刊论文

作者Yi WM(易卫敏)1,2,3; Green, Richard4; Bai JM(白金明)1,2,3; Wang, Tinggui5; Grier, Catherine J.6; Trump, Jonathan R.6,7,8; Brandt, William N.6,8; Zuo, Wenwen9; Yang, Jinyi10; Wang, Feige10
刊名ASTROPHYSICAL JOURNAL
出版日期2017-04-01
卷号838期号:2
ISSN号0004-637X
关键词galaxies: high-redshift quasars: absorption lines quasars: general quasars: individual (J0122+1216)
通讯作者Yi, Weimin(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China)
产权排序第1完成单位
英文摘要Very few low-ionization broad absorption line (LoBAL) QSOs have been found at high redshifts, to date. One high-redshift LoBAL QSO, J0122+1216, was recently discovered by the Lijiang 2.4 m Telescope, with an initial redshift determination of 4.76. Aiming to investigate its physical properties, we carried out follow-up observations in the optical and near-IR spectroscopy. Near-IR spectra from UKIRT and P200 confirm that it is a LoBAL, with a new redshift determination of 4.82 +/- 0.01 based on the Mg II emission-line. The new Mg II redshift determination reveals strong blueshifts and asymmetry of the high-ionization emission lines. We estimate a black hole mass of similar to 2.3 x 10(9) M-circle dot and Eddington ratio of similar to 1.0 according to the empirical Mg II-based single-epoch relation and bolometric correction factor. It is possible that strong outflows are the result of an extreme quasar environment driven by the high Eddington ratio. A lower limit on the outflowing kinetic power (>0.9% L-Edd) is derived from both emission and absorption lines, indicating that these outflows play a significant role in the feedback process that regulates the growth of its black hole, as well as host galaxy evolution.
学科主题天文学
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]BROAD-ABSORPTION-LINE ; DIGITAL-SKY-SURVEY ; ACTIVE GALACTIC NUCLEI ; BLACK-HOLE MASS ; QUASI-STELLAR OBJECTS ; EMISSION-LINE ; DATA RELEASE ; C-IV ; MULTIYEAR TIMESCALES ; DISTANT QUASARS
收录类别SCI
原文出处http://stacks.iop.org/0004-637X/838/i=2/a=135?key=crossref.e7b1f079590031c08349a903aff85ece
语种英语
WOS记录号WOS:000398296700011
源URL[http://ir.ynao.ac.cn/handle/114a53/10019]  
专题云南天文台_丽江天文观测站（南方基地）
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Center for Astronomical Mega-science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, P. R. China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
4.Steward Observatory, University of Arizona, Tucson, AZ 85721-0065, USA
5.CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, China
6.Department of Astronomy & Astrophysics and Institute for Gravitation & the Cosmos, The Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA
7.Department of Physics, University of Connecticut, 2152 Hillside Road Unit 3046, Storrs, CT 06269, USA
8.Department of Physics, Pennsylvania State University, University Park, PA, 16802, USA
9.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
10.Department of Astronomy, School of Physics, Peking University, Beijing 100871, China
推荐引用方式
GB/T 7714		 Yi WM,Green, Richard,Bai JM,et al. The Physical Constraints on a New LoBAL QSO at z=4.82[J]. ASTROPHYSICAL JOURNAL,2017,838(2).
APA Yi WM.,Green, Richard.,Bai JM.,Wang, Tinggui.,Grier, Catherine J..,...&Lun BL.(2017).The Physical Constraints on a New LoBAL QSO at z=4.82.ASTROPHYSICAL JOURNAL,838(2).
MLA Yi WM,et al."The Physical Constraints on a New LoBAL QSO at z=4.82".ASTROPHYSICAL JOURNAL 838.2(2017).

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