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Kinematics of the Broad-line Region of 3C 273 from a 10 yr Reverberation Mapping Campaign
Zhang, Zhi-Xiang1,2; Du, Pu1; Smith, Paul S.3; Zhao, Yulin4,5; Hu, Chen1; Xiao M(肖铭)1,6; Li, Yan-Rong1; Huang, Ying-Ke1,2; Wang, Kai1,2; Bai JM(白金明)6; Ho, Luis C.4,5; Wang, Jian-Min1,2,7
发表期刊ASTROPHYSICAL JOURNAL
2019-05-01
卷号876期号:1页码:14
DOI10.3847/1538-4357/ab0199
产权排序第6完成单位
收录类别SCI
关键词galaxies: active galaxies: individual (3C 273) galaxies: nuclei
摘要

Despite many decades of study, the kinematics of the broad-line region of 3C 273 are still poorly understood. We report a new, high signal-to-noise, reverberation mapping campaign carried out from 2008 November to 2018 March that allows the determination of time lags between emission lines and the variable continuum with high precision. The time lag of variations in H beta relative to those of the 5100 angstrom continuum is 146.8(-1)(2.1)(+8.3) days in the rest frame, which agrees very well with the Paschen-alpha region measured by the GRAVITY at The Very Large Telescope Interferometer. The time lag of the H gamma emission line is found to be nearly the same as that for H beta. The lag of the Fe II emission is 322.0(-57)(.9)(+55.5) days, longer by a factor of similar to 2 than that of the Balmer lines. The velocity-resolved lag measurements of the H beta line show a complex structure that can be possibly explained by a rotation-dominated disk with some inflowing radial velocity in the H beta-emitting region. Taking the virial factor of f(BLR) = 1.3, we derive a BH mass of M. = 4.1(-0.4)(+0.3) x 10(8) M-circle dot and an accretion rate of 9.3 L-Edd C-2 from the H beta line. The decomposition of its Hubble Space Telescope images yields a host stellar mass of M-* = 10(11.)(3 +/- 0.7) M-circle dot, and a ratio of M./M-* approximate to 2.0 x 10(-3) in agreement with the Magorrian relation. In the near future, it is expected to compare the geometrically thick BLR discovered by the GRAVITY in 3C 273 with its spatially resolved torus in order to understand the potential connection between the BLR and the torus.

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-11833008] ; NSFC[NSFC-11473002] ; NSFC[NSFC-11721303] ; NSFC[NSFC-11690024] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SLH007] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23010400] ; Fermi Guest Investigator grants[NNX08AW56G] ; Fermi Guest Investigator grants[NNX09AU10G] ; Fermi Guest Investigator grants[NNX12AO93G] ; Fermi Guest Investigator grants[NNX15AU81G] ; CAS ; People's Government of Yunnan Province
项目资助者National Key R&D Program of China[2016YFA0400701] ; National Key R&D Program of China[2016YFA0400702] ; NSFC[NSFC-11873048, NSFC-11833008, NSFC-11473002, NSFC-11721303, NSFC-11690024] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SLH007] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23010400] ; Fermi Guest Investigator grants[NNX08AW56G, NNX09AU10G, NNX12AO93G, NNX15AU81G] ; CAS ; People's Government of Yunnan Province
语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学 ; 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:000466800100011
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE GALACTIC NUCLEI ; AGN MONITORING PROJECT ; SUPERMASSIVE BLACK-HOLES ; SPECTRAL VARIABILITY ; MASS ; EMISSION ; QUASARS ; STELLAR ; GALAXIES ; SIZE
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被引频次:62[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/114a53/20236
专题南方基地
中国科学院天体结构与演化重点实验室
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.School of Astronomy and Space Science, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People's Republic of China
3.Steward Observatory, University of Arizona, Tucson, AZ 85721, USA
4.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China
5.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People's Republic of China
6.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, 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
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Zhang, Zhi-Xiang,Du, Pu,Smith, Paul S.,et al. Kinematics of the Broad-line Region of 3C 273 from a 10 yr Reverberation Mapping Campaign[J]. ASTROPHYSICAL JOURNAL,2019,876(1):14.
APA Zhang, Zhi-Xiang.,Du, Pu.,Smith, Paul S..,Zhao, Yulin.,Hu, Chen.,...&Wang, Jian-Min.(2019).Kinematics of the Broad-line Region of 3C 273 from a 10 yr Reverberation Mapping Campaign.ASTROPHYSICAL JOURNAL,876(1),14.
MLA Zhang, Zhi-Xiang,et al."Kinematics of the Broad-line Region of 3C 273 from a 10 yr Reverberation Mapping Campaign".ASTROPHYSICAL JOURNAL 876.1(2019):14.
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