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Monitoring AGNs with H beta Asymmetry. I. First Results: Velocity-resolved Reverberation Mapping
Du, Pu1; Brotherton, Michael S.2; Wang, Kai1; Huang, Zheng-Peng1; Hu, Chen1; Kasper, David H.2; Chick, William T.2; Nguyen, My L.2; Maithil, Jaya2; Hand, Derek2; Li, Yan-Rong1; Ho, Luis C.3,4; Bai JM(白金明)5; Bian, Wei-Hao6; Wang, Jian-Min1,7,8,9
发表期刊ASTROPHYSICAL JOURNAL
2018-12-20
卷号869期号:2页码:17
DOI10.3847/1538-4357/aaed2c
产权排序第5完成单位
收录类别SCI
关键词galaxies: active galaxies: nuclei quasars: supermassive black holes
摘要

We have started a long-term reverberation mapping (RM) project using the Wyoming Infrared Observatory 2.3 m telescope titled "Monitoring AGNs with H beta Asymmetry" (MAHA). The motivations of the project are to explore the geometry and kinematics of the gas responsible for complex H beta emission-line profiles, ideally leading to an understanding of the structures and origins of the broad-line region (BLR). Furthermore, such a project provides the opportunity to search for evidence of close binary supermassive black holes. We describe MAHA and report initial results from our first campaign, from 2016 December to 2017 May, highlighting velocity-resolved time lags for four active galactic nuclei (AGNs) with asymmetric H beta lines. We find that 3C 120, Ark 120, and Mrk 6 display complex features different from the simple signatures expected for pure outflow, inflow, or a Keplerian disk. While three of the objects have been previously reverberation mapped, including velocity-resolved time lags in the cases of 3C 120 and Mrk 6, we report a time lag and corresponding black hole mass measurement for SBS 1518+593 for the first time. Furthermore, SBS 1518+593, the least asymmetric of the four, does show velocity-resolved time lags characteristic of a Keplerian disk or virialized motion more generally. Also, the velocity-resolved time lags of 3C 120 have significantly changed since previously observed, indicating an evolution of its BLR structure. Future analyses of the data for these objects and others in MAHA will explore the full diversity of H beta lines and the physics of AGN BLRs.

资助项目National Key R&D Program of China[2016YFA0400701] ; National Key R&D Program of China[2016YFA0400702] ; NSFC[NSFC-11873048] ; NSFC[NSFC-11503026] ; NSFC[NSFC-11833008] ; NSFC[NSFC-11573026] ; NSFC[NSFC-11773029] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23000000] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SLH007]
项目资助者National Key R&D Program of China[2016YFA0400701, 2016YFA0400702] ; NSFC[NSFC-11873048, NSFC-11503026, NSFC-11833008, NSFC-11573026, NSFC-11773029] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23000000] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SLH007]
语种英语
学科领域天文学 ; 星系与宇宙学
学科门类理学 ; 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:000454073700013
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BROAD-LINE REGION ; ACTIVE GALACTIC NUCLEI ; BLACK-HOLE BINARY ; PEAKED EMISSION-LINES ; SPECTRAL VARIABILITY ; SEYFERT-GALAXIES ; CENTRAL MASSES ; TELL US ; QUASAR ; PROJECT
引用统计
被引频次:51[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/114a53/18803
专题南方基地
通讯作者Du, Pu
作者单位1.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People's Republic of China
2.Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA
3.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China
4.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People's Republic of China
5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
6.Physics Department, Nanjing Normal University, Nanjing 210097, 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
9.PI of the MAHA Project.
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GB/T 7714
Du, Pu,Brotherton, Michael S.,Wang, Kai,et al. Monitoring AGNs with H beta Asymmetry. I. First Results: Velocity-resolved Reverberation Mapping[J]. ASTROPHYSICAL JOURNAL,2018,869(2):17.
APA Du, Pu.,Brotherton, Michael S..,Wang, Kai.,Huang, Zheng-Peng.,Hu, Chen.,...&Wang, Jian-Min.(2018).Monitoring AGNs with H beta Asymmetry. I. First Results: Velocity-resolved Reverberation Mapping.ASTROPHYSICAL JOURNAL,869(2),17.
MLA Du, Pu,et al."Monitoring AGNs with H beta Asymmetry. I. First Results: Velocity-resolved Reverberation Mapping".ASTROPHYSICAL JOURNAL 869.2(2018):17.
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