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Photoionization-driven Absorption-line Variability in Balmer Absorption Line Quasar LBQS 1206+1052
Sun, Luming1,2; Zhou, Hongyan1,2; Ji, Tuo1; Jiang, Peng1; Liu, Bo1,2; Liu WJ(刘文娟)3; Pan, Xiang1,2; Shi, Xiheng1; Wang JG(王建国)3; Wang, Tinggui2; Yang, Chenwei2; Zhang, Shaohua1; Miller, Lauren P.4
Source PublicationASTROPHYSICAL JOURNAL
2017-04-01
Volume838Issue:2
DOI10.3847/1538-4357/aa63eb
Contribution Rank第3完成单位
Indexed BySCI
KeywordGalaxies: Active Galaxies: Evolution
Abstract

In this paper we present an analysis of absorption-line variability in mini-BAL quasar LBQS 1206+ 1052. The Sloan Digital Sky Survey spectrum demonstrates that the absorption troughs can be divided into two components of blueshift velocities of similar to 700 and similar to 1400km s(-1) relative to the quasar rest frame. The former component shows rare Balmer absorption, which is an indicator of high-density absorbing gas; thus, the quasar is worth follow-up spectroscopic observations. Our follow-up optical and near-infrared spectra using MMT, YFOSC, TSpec, and DBSP reveal that the strengths of the absorption lines vary for both components, while the velocities do not change. We reproduce all of the spectral data by assuming that only the ionization state of the absorbing gas is variable and that all other physical properties are invariable. The variation of ionization is consistent with the variation of optical continuum from the V-band light curve. Additionally, we cannot interpret the data by assuming that the variability is due to a movement of the absorbing gas. Therefore, our analysis strongly indicates that the absorption-line variability in LBQS 1206+ 1052 is photoionization driven. As shown from photoionization simulations, the absorbing gas with blueshift velocity of similar to 700 km s(-1) has a density in the range of 10(9) to 10(10) cm(-3) and a distance of similar to 1 pc, and the gas with blueshift velocity of similar to 1400 km s(-1) has a density of 10(3) cm(-3) and a distance of similar to 1 kpc.

Funding ProjectNational Basic Research Program of China (the 973 Program)[2013CB834905] ; National Natural Science Foundation of China[NSFC-11421303] ; National Natural Science Foundation of China[11473025] ; Natural Science Foundation of Shanghai[15ZR1444200] ; Strategic Priority Research Program ; Emergence of Cosmological Structures[XDB09000000] ; National Astronomical Observatories ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; CAS ; People's Government of Yunnan Province ; [NSFC-11503022] ; [NSFC-11573024]
Funding OrganizationNational Basic Research Program of China (the 973 Program)[2013CB834905] ; National Natural Science Foundation of China[NSFC-11421303, 11473025] ; Natural Science Foundation of Shanghai[15ZR1444200] ; Strategic Priority Research Program ; Emergence of Cosmological Structures[XDB09000000] ; National Astronomical Observatories ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; CAS ; People's Government of Yunnan Province ; [NSFC-11503022] ; [NSFC-11573024]
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000398118500012
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordDigital Sky Survey ; Active Galactic Nuclei ; Black-hole Masses ; Emission-line ; Time-scales ; Broad ; Outflow ; Discovery ; Spectra ; Temperature
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10021
Collection自由探索组
Corresponding AuthorSun, Luming
Affiliation1.Polar Research Institute of China, 451 Jinqiao Road, Shanghai, China
2.Department of Astronomy, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, China
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan, China
4.Lehigh University, 27 Memorial Drive West, Bethlehem, PA 18015, USA
Recommended Citation
GB/T 7714
Sun, Luming,Zhou, Hongyan,Ji, Tuo,et al. Photoionization-driven Absorption-line Variability in Balmer Absorption Line Quasar LBQS 1206+1052[J]. ASTROPHYSICAL JOURNAL,2017,838(2).
APA Sun, Luming.,Zhou, Hongyan.,Ji, Tuo.,Jiang, Peng.,Liu, Bo.,...&Miller, Lauren P..(2017).Photoionization-driven Absorption-line Variability in Balmer Absorption Line Quasar LBQS 1206+1052.ASTROPHYSICAL JOURNAL,838(2).
MLA Sun, Luming,et al."Photoionization-driven Absorption-line Variability in Balmer Absorption Line Quasar LBQS 1206+1052".ASTROPHYSICAL JOURNAL 838.2(2017).
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