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Velocity-resolved Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 4151 during Outburst Stage: Evidence for Kinematics Evolution of Broad-line Region
Li SS(李莎莎)1,2; Feng HC(封海成)1,2,3; Liu HT(刘洪涛)1,2,4; Bai JM(白金明)1,2,4; Li, Rui3; Lu KX(卢开兴)1,2,4; Wang JG(王建国)1,2,4; Huang, Ying-Ke5,6; Zhang, Zhi-Xiang7
发表期刊ASTROPHYSICAL JOURNAL
2022-09-01
卷号936期号:1
DOI10.3847/1538-4357/ac8745
产权排序第1完成单位
收录类别SCI
摘要

Changing-look active galactic nucleus NGC 4151, which has attracted a lot of attention, is undergoing the second dramatic outburst stage in its evolutionary history. To investigate the geometry and kinematics of the broad-line region (BLR), and measure the mass of supermassive black hole in NGC 4151, we perform a 7 month photometric and spectroscopic monitoring program in 2020-2021, using the 2.4 m telescope at Lijiang Observatory. We successfully measure the time lags of the responses from broad H alpha, H beta, H gamma, He I, and He II emission lines to continuum variation, which are 7.63(-2.62)(+1.85), 6.21(-1.13)(+1.41), 5.67(-1.97)(+1.65), 1.59(-1.11)(+0.86), and 0.46(-1.06)(+1.22) days, respectively, following radial stratification. The ratios of time lags among these lines are 1.23: 1.00: 0.91: 0.26: 0.07. We find that the continuum lag between the ultraviolet and optical bands can significantly affect the lag measurements of He I and He II. Virial and infalling gas motions coexist in this campaign, which is different from previous results, implying the evolutionary kinematics of BLR. Based on our measurements and previous ones in the literature, we confirm that the BLR of NGC 4151 is basically virialized. Finally, we compute the black hole mass through multiple lines, and the measurement from H beta to be 3.94(-0.72)(+0.90) x 10(7) M-circle dot, which is consistent with previous results. The corresponding accretion rate is 0.02(-0.01)(+0.01)L(Edd)c(-2), implying a sub-Eddington accretor.

资助项目National Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China (NSFC)[11991051] ; National Natural Science Foundation of China (NSFC)[12103041] ; National Natural Science Foundation of China (NSFC)[12073068] ; NSFC[U1931131] ; CAS[U1931131] ; China Manned Space Project[CMS-CSST-2021-A06] ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; U.S. National Science Foundation through the Mid-Scale Innovations Program (MSIP)
项目资助者National Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China (NSFC)[11991051, 12103041, 12073068] ; NSFC[U1931131] ; CAS[U1931131] ; China Manned Space Project[CMS-CSST-2021-A06] ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; U.S. National Science Foundation through the Mid-Scale Innovations Program (MSIP)
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:000847877400001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]AGN MONITORING PROJECT ; BLACK-HOLE MASS ; SHORT-TIMESCALE VARIABILITY ; SEYFERT 1 GALAXIES ; H-BETA ; MULTIWAVELENGTH OBSERVATIONS ; EMISSION-LINES ; VIRIAL FACTOR ; DELAY MAPS ; QUASARS
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/25560
专题南方基地
中国科学院天体结构与演化重点实验室
星系类星体研究组
通讯作者Feng HC(封海成)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650011, Yunnan, People's Republic of China; hcfeng@ynao.ac.cn, htliu@ynao.ac.cn, baijinming@ynao.ac.cn;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, Yunnan, People's Republic of China;
3.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China;
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China;
5.Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, 104 Youyi Road, Haidian District, Beijing, 100094, People's Republic of China;
6.Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People's Republic of China;
7.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
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Li SS,Feng HC,Liu HT,et al. Velocity-resolved Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 4151 during Outburst Stage: Evidence for Kinematics Evolution of Broad-line Region[J]. ASTROPHYSICAL JOURNAL,2022,936(1).
APA Li SS.,Feng HC.,Liu HT.,Bai JM.,Li, Rui.,...&Zhang, Zhi-Xiang.(2022).Velocity-resolved Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 4151 during Outburst Stage: Evidence for Kinematics Evolution of Broad-line Region.ASTROPHYSICAL JOURNAL,936(1).
MLA Li SS,et al."Velocity-resolved Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 4151 during Outburst Stage: Evidence for Kinematics Evolution of Broad-line Region".ASTROPHYSICAL JOURNAL 936.1(2022).
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