Supermassive Black Hole and Broad-line Region in NGC 5548: Results from Five-season Reverberation Mapping | |
Lu KX(卢开兴)4,5; Bai JM(白金明)4,5; Wang, Jian-Min3; Hu, Chen3; Li, Yan-Rong3; Du, Pu3; Xiao, Ming3; Feng HC(封海成)4,5; Li SS(李莎莎)4,5; Wang JG(王建国)4,5 | |
刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES |
2022-11-01 | |
卷号 | 263期号:1 |
ISSN号 | 0067-0049 |
DOI | 10.3847/1538-4365/ac94d3 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | NGC 5548 is one of the active galactic nuclei (AGNs) selected for our long-term spectroscopic monitoring with the Lijiang 2.4 m telescope, aiming at investigating the origin and evolution of broad-line regions (BLRs), accurately measuring the mass of supermassive black holes (SMBHs), and understanding the structure and evolution of the AGN. We have performed five-season observations for NGC 5548 with the median sampling interval ranging from 1.25 to 3 days. The light curves of the 5100 angstrom continuum and broad emission lines are measured after subtracting contamination of the host galaxy starlight. The time lags of the broad He ii, He i, H gamma, and H beta lines with respect to the 5100 angstrom continuum are obtained for each season and their mean time lags over the five seasons are 0.69, 4.66, 4.60, and 8.43 days, respectively. The H gamma and H beta velocity-resolved lag profiles in the seasons of 2015, 2018, 2019, and 2021 are constructed, from which an M-shaped structure is found in 2015 but disappears after 2018. Our five-season reverberation mapping (RM) yields an average virial SMBH mass of M (center dot)/10(7) M (circle dot) = 14.22, with a small standard deviation of 1.89. By combining the previous 18 RM campaigns and our five-season campaign for NGC 5548, we find that there exists a time lag of 3.5 yr between the changes in the BLR size and optical luminosity. In addition, we construct the BLR radius-luminosity relation and the virial relation for NGC 5548. |
学科主题 | 天文学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | ACTIVE GALACTIC NUCLEI ; AGN MONITORING PROJECT ; HIGH ACCRETION RATES ; FE II EMISSION ; SPACE TELESCOPE ; H-ALPHA ; SPECTRAL VARIABILITY ; SEYFERT-GALAXIES ; QUASARS ; MASSES |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000882597300001 |
资助机构 | National Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China (NSFC)[12073068, 11991051, 11873048, 11703077] ; science research grants from the China Manned Space Project[CMS-CSST-2021-A06] ; Yunnan Province Foundation[202001AT070069] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022058] ; Top-notch Young Talents Program of Yunnan Province ; Light of West China Program provided by the Chinese Academy of Sciences[Y7XB016001] ; People's Government of Yunnan Province ; Chinese Academy of Sciences |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25678] |
专题 | 云南天文台_丽江天文观测站(南方基地) |
作者单位 | 1.Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People's Republic of China 2.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People's Republic of China; 3.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People's Republic of China; 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China; 5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China; lukx@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Lu KX,Bai JM,Wang, Jian-Min,et al. Supermassive Black Hole and Broad-line Region in NGC 5548: Results from Five-season Reverberation Mapping[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2022,263(1). |
APA | 卢开兴.,白金明.,Wang, Jian-Min.,Hu, Chen.,Li, Yan-Rong.,...&Huang, Ying-Ke.(2022).Supermassive Black Hole and Broad-line Region in NGC 5548: Results from Five-season Reverberation Mapping.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,263(1). |
MLA | 卢开兴,et al."Supermassive Black Hole and Broad-line Region in NGC 5548: Results from Five-season Reverberation Mapping".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 263.1(2022). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论