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Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 3516
Feng HC(封海成)1,2,3; Hu, Chen4; Li, Sha-Sha2,4; Liu HT(刘洪涛)1,3,5; Bai JM(白金明)1,3,5; Xing LF(邢丽峰)1,3,5; Wang, Wei-Yang2,6; Yang, Zi-Xu2,4; Xiao, Ming4; Lu KX(卢开兴)1,3,5
Source PublicationASTROPHYSICAL JOURNAL
2021-03-01
Volume909Issue:1Pages:11
DOI10.3847/1538-4357/abd851
Contribution Rank第1完成单位
Indexed BySCI
KeywordActive galaxies Photometry Reverberation mapping Seyfert galaxies Spectroscopy Supermassive black holes
Abstract

The changes of broad emission lines should be a crucial issue in understanding the physical properties of changinglook active galactic nuclei (CL-AGNs). Here we present the results of an intensive and homogeneous 6 month long reverberation mapping (RM) monitoring campaign during a low-activity state of the CL-AGN Seyfert galaxy NGC 3516. Photometric and spectroscopic monitoring was carried out during 2018-2019 with the Lijiang 2.4 m telescope. The sampling is 2 days in most nights, and the average sampling is similar to 3 days. The rest-frame time lags of Ha and H beta are H-T alpha = 7.56(+4242)(2.10) and H-T beta = 7.50(+2.05)(0.77) days, respectively. From an rms H beta line dispersion of sigma(line) = 1713.3 +/- 46.7 km s(-1) and a virial factor of f(sigma) = 5.5, the central black hole mass of NGC 3516 is estimated to be M-BH 2.4(+0.7)(-0.3) x 10(7)M circle dot, BH 0.30.7 7., which is in agreement with previous estimates. The velocity-resolved delays show that the time lags increase toward negative velocity for both Ha and H beta. The velocity-resolved RM of Ha is done for the first time. These RM results are consistent with other observations before the spectral-type change, indicating a basically constant broad-line region structure during the CL process. The CL model of changes of accretion rate seems to be favored by long-term H beta variability and RM observations of NGC 3516.

Funding ProjectNational Natural Science Foundation of China (NSFC)[11991051] ; Chinese Academy of Sciences (CAS)[U1831125] ; Chinese Academy of Sciences (CAS)[U1331118] ; NSFC[U1831125] ; NSFC[U1331118] ; NSFC[11703077] ; NSFC[12073068] ; Yunnan Province Foundation[202001AT070069] ; CAS Interdisciplinary Innovation Team ; Chinese Academy of Sciences ; People's Government of Yunnan Province
Funding OrganizationNational Natural Science Foundation of China (NSFC)[11991051] ; Chinese Academy of Sciences (CAS)[U1831125, U1331118] ; NSFC[U1831125, U1331118, 11703077, 12073068] ; Yunnan Province Foundation[202001AT070069] ; CAS Interdisciplinary Innovation Team ; Chinese Academy of Sciences ; People's Government of Yunnan Province
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
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:000624508300001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/24183
Collection南方基地
中国科学院天体结构与演化重点实验室
Corresponding AuthorFeng HC(封海成)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, Yunnan, People's Republic of China
2.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, Yunnan, People's Republic of China
4.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People's Republic of China
5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China
6.Key Laboratory for Computational Astrophysics, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Beijing 100101, People's Republic of China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Feng HC,Hu, Chen,Li, Sha-Sha,et al. Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 3516[J]. ASTROPHYSICAL JOURNAL,2021,909(1):11.
APA Feng HC.,Hu, Chen.,Li, Sha-Sha.,Liu HT.,Bai JM.,...&Lu KX.(2021).Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 3516.ASTROPHYSICAL JOURNAL,909(1),11.
MLA Feng HC,et al."Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 3516".ASTROPHYSICAL JOURNAL 909.1(2021):11.
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