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Monitoring AGNs with H beta Asymmetry. II. Reverberation Mapping of Three Seyfert Galaxies Historically Displaying H beta Profiles with Changing Asymmetry: Mrk 79, NGC 3227, and Mrk 841
Brotherton ,Michael S.1; Du, Pu2; Xiao, Ming2; Bao, Dong-Wei2; Zhao, Bixuan3; McLane, Jacob N.1; Olson, Kianna A.1; Wang, Kai2; Huang, Zheng-Peng2; Hu, Chen2; Kasper, David H.1; Chick, William T.1; Nguyen, My L.1; Maithil, Jaya1; Hand, Derek1; Li, Yan-Rong2; Ho, Luis C.4,5; Bai JM(白金明)6; Bian, Wei-Hao3; Wang, Jian-Min2,7,8
发表期刊The Astrophysical Journal
2020-12-01
卷号905期号:1
DOI10.3847/1538-4357/abc2d2
产权排序第6完成单位
收录类别SCI
关键词Seyfert galaxies Supermassive black holes Reverberation mapping
摘要

We report the results of reverberation mapping of three bright Seyfert galaxies, Mrk 79, NGC 3227, and Mrk 841, from a campaign conducted from 2016 December to 2017 May with the Wyoming Infrared Observatory (WIRO) 2.3 m telescope. All three of these targets have shown asymmetric broad Hβ emission lines in the past, although their emission lines were relatively symmetric during our observations. We measured Hβ time lags for all three targets and estimated masses of their black holes—for the first time in the case of Mrk 841. For Mrk 79 and NGC 3227, the data are of sufficient quality to resolve distinct time lags as a function of velocity and to compute two-dimensional velocity-delay maps. Mrk 79 shows smaller time lags for high-velocity gas, but the distribution is not symmetric, and its complex velocity-delay map could result from the combination of both inflowing and outflowing Hβ emitting disks that may be part of a single larger structure. NGC?3227 shows the largest time lags for blueshifted gas, and the two-dimensional velocity-delay map suggests a disk with some inflow. We compare our results with previous work and find evidence for different time lags despite similar luminosities, as well as evolving broad-line region structures.

语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
学科门类理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000599123800001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BROAD-LINE REGION ; BLACK-HOLE MASSES ; ACTIVE GALACTIC NUCLEI ; HIGH ACCRETION ; PROJECT ; KINEMATICS ; QUASARS ; RATES ; SIZE
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/24001
专题南方基地
通讯作者Brotherton ,Michael S.
作者单位1.Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA
2.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People’s Republic of China
3.Physics Department, Nanjing Normal University, Nanjing 210097, People’s Republic of China
4.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People’s Republic of China
5.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People’s Republic of China
6.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People’s Republic of China
7.National Astronomical Observatories of China, Chinese Academy of Sciences, 20A Datun Road, Beijing 100020, People’s Republic of China
8.School of Astronomy and Space Science, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People’s Republic of China
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GB/T 7714
Brotherton ,Michael S.,Du, Pu,Xiao, Ming,et al. Monitoring AGNs with H beta Asymmetry. II. Reverberation Mapping of Three Seyfert Galaxies Historically Displaying H beta Profiles with Changing Asymmetry: Mrk 79, NGC 3227, and Mrk 841[J]. The Astrophysical Journal,2020,905(1).
APA Brotherton ,Michael S..,Du, Pu.,Xiao, Ming.,Bao, Dong-Wei.,Zhao, Bixuan.,...&Wang, Jian-Min.(2020).Monitoring AGNs with H beta Asymmetry. II. Reverberation Mapping of Three Seyfert Galaxies Historically Displaying H beta Profiles with Changing Asymmetry: Mrk 79, NGC 3227, and Mrk 841.The Astrophysical Journal,905(1).
MLA Brotherton ,Michael S.,et al."Monitoring AGNs with H beta Asymmetry. II. Reverberation Mapping of Three Seyfert Galaxies Historically Displaying H beta Profiles with Changing Asymmetry: Mrk 79, NGC 3227, and Mrk 841".The Astrophysical Journal 905.1(2020).
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