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Author
Yi, Weimin
Green, Richard
Bai, Jin-Ming
Wang, Tinggui

Grier, C. J.

Trump, Jonathan R.

Brandt, W. N.

Zuo, Wenwen
Yang, Jinyi
Wang, Feige

Yang, Chenwei
Wu, Xue-Bing

Zhou, Hongyan
Fan, Xiaohui

Jiang, Linhua

Yang, Qian
Varricatt, Watson
Kerr, Tom
Milne, P. A.

Benigni, Sam
Wang, Jian-Guo

Zhang, Jujia

Wang, Fang
Wang, Chuan-Jun
Xin, Yu-Xin
Fan, Yu-Feng
Chang, Liang
Zhang, Xiliang
Lun, Bao-Li
Affiliation
Univ Arizona, Steward ObservIssue Date
2017-04-03Keywords
galaxies: high-redshiftquasars: absorption lines
quasars: general
quasars: individual (J0122+1216)
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IOP PUBLISHING LTDCitation
The Physical Constraints on a New LoBAL QSO at z = 4.82 2017, 838 (2):135 The Astrophysical JournalJournal
The Astrophysical JournalRights
© 2017. The American Astronomical Society. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
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.ISSN
1538-4357Version
Final published versionSponsors
West Light Foundation of The Chinese Academy of Sciences [Y6XB016001]; China Scholarships Council [201604910001]; NSF [AST-1516784, AST-1517113]; Key Research Program of the CAS [KJZD-EW-M06]; NSFC [11133006, 11433004]; NASA; National Astronomical Observatories of China; Chinese Academy of Sciences (Strategic Priority Research Program "The Emergence of Cosmological Structures") [XDB09000000]; Special Fund for Astronomy from the Ministry of Finance; CAS; People's Government of Yunnan ProvinceAdditional Links
http://stacks.iop.org/0004-637X/838/i=2/a=135?key=crossref.e7b1f079590031c08349a903aff85eceae974a485f413a2113503eed53cd6c53
10.3847/1538-4357/aa65d6