Monitoring AGNs with H beta Asymmetry. I. First Results: Velocity-resolved Reverberation Mapping
文献类型：期刊论文
| 作者 | Du, Pu2; Brotherton, Michael S.3; Wang, Kai2; Huang, Zheng-Peng2; Hu, Chen2; Kasper, David H.3; Chick, William T.3; Nguyen, My L.3; Maithil, Jaya3; Hand, Derek3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-12-20 |
| 卷号 | 869期号:2页码:17 |
| ISSN号 | 0004-637X |
| 关键词 | galaxies: active galaxies: nuclei quasars: supermassive black holes |
| DOI | 10.3847/1538-4357/aaed2c |
| 英文摘要 | 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. |
| WOS关键词 | BROAD-LINE REGION ; ACTIVE GALACTIC NUCLEI ; BLACK-HOLE BINARY ; PEAKED EMISSION-LINES ; SPECTRAL VARIABILITY ; SEYFERT-GALAXIES ; CENTRAL MASSES ; TELL US ; QUASAR ; PROJECT |
| 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] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000454073700013 |
| 资助机构 | National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/24234]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Du, Pu |
| 作者单位 | 1.MAHA Project, Beijing, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China 3.Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA 4.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 5.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 6.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China 7.Nanjing Normal Univ, Dept Phys, Nanjing 210097, Jiangsu, Peoples R China 8.Chinese Acad Sci, Natl Astron Observ China, 20A Datun Rd, Beijing 100020, Peoples R China 9.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：国家天文台
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