Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XIII. Ultraviolet Time Lag of Hβ Emission in Mrk 142

doi:10.3847/1538-4357/acfb72

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	Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XIII. Ultraviolet Time Lag of Hβ Emission in Mrk 142
	Khatu, Viraja C.6; Gallagher, Sarah C.6; Horne, Keith 5; Cackett, Edward M.4; Hu, Chen 3; Pasquini, Sofia 7; Hall, Patrick 2; Wang, Jian-Min 3; Bian, Wei-Hao 1; Li, Yan-Rong 3
刊名	ASTROPHYSICAL JOURNAL
	2023-12-01
卷号	958 期号:2
ISSN号	0004-637X
DOI	10.3847/1538-4357/acfb72
产权排序	第8完成单位
文献子类	Article
英文摘要	We performed a rigorous reverberation-mapping analysis of the broad-line region (BLR) in a highly accreting (L/L-Edd = 0.74-3.4) active galactic nucleus, Markarian 142 (Mrk 142), for the first time using concurrent observations of the inner accretion disk and the BLR to determine a time lag for the H beta lambda 4861 emission relative to the ultraviolet (UV) continuum variations. We used continuum data taken with the Niel Gehrels Swift Observatory in the UVW2 band, and the Las Cumbres Observatory, Dan Zowada Memorial Observatory, and Liverpool Telescope in the g band, as part of the broader Mrk 142 multiwavelength monitoring campaign in 2019. We obtained new spectroscopic observations covering the H beta broad emission line in the optical from the Gemini North Telescope and the Lijiang 2.4 m Telescope for a total of 102 epochs (over a period of 8 months) contemporaneous to the continuum data. Our primary result states a UV-to-H beta time lag of 8.68(-0.72)(+0.75) days in Mrk 142 obtained from light-curve analysis with a Python-based running optimal average algorithm. We placed our new measurements for Mrk 142 on the optical and UV radius-luminosity relations for NGC 5548 to understand the nature of the continuum driver. The positions of Mrk 142 on the scaling relations suggest that UV is closer to the true driving continuum than the optical. Furthermore, we obtain log(M-center dot /M-circle dot) = 6.32 +/- 0.29 assuming UV as the primary driving continuum.
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
资助项目	Natural Sciences and Engineering Research Council of Canada (NSERC)[RGPIN/04157]; Ontario Graduate Scholarships; NASA[80NSSC19K0150]; NSF[AST-1909199]; National Science Foundation of China[12122305]; National Science Foundation of China[11833008]; National Science Foundation of China[11973029]; National Science Foundation of China[11991051]; National Science Foundation of China[11991054]; New Technologies for Canadian Observatories, an NSERC CREATE program; Chinese Academy of Sciences ( CAS); People's Government of Yunnan Province; National Key R&D Program of China[2021YFA1600404]; UK Science and Technology Facilities Council
WOS关键词	BROAD-LINE REGION ; RADIUS-LUMINOSITY RELATIONSHIP ; FE II REVERBERATION ; X-RAY-PROPERTIES ; SPACE-TELESCOPE ; SIZE ; MASS ; VARIABILITY ; SPECTRA ; STEPS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001106491900001
资助机构	Natural Sciences and Engineering Research Council of Canada (NSERC)[RGPIN/04157] ; Ontario Graduate Scholarships ; NASA[80NSSC19K0150] ; NSF[AST-1909199] ; National Science Foundation of China[12122305, 11833008, 11973029, 11991051, 11991054] ; New Technologies for Canadian Observatories, an NSERC CREATE program ; Chinese Academy of Sciences ( CAS) ; People's Government of Yunnan Province ; National Key R&D Program of China[2021YFA1600404] ; UK Science and Technology Facilities Council
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26451]
专题	云南天文台_丽江天文观测站（南方基地）
作者单位	1.Physics Department, Nanjing Normal University, Nanjing 210097, People's Republic of China; 2.Department of Physics and Astronomy, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada; 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.Department of Physics & Astronomy, Wayne State University, 666 W Hancock Street, Detroit, MI 48201, USA; 5.School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, KY16 9SS, Scotland, UK; 6.Department of Physics and Astronomy & Institute of Earth and Space Exploration, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada; vkhatu@uwo.ca; 7.Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada; 8.School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK 9.Yunnan Observatories, The Chinese Academy of Sciences, Kunming 650011, People's Republic of China;
推荐引用方式 GB/T 7714	Khatu, Viraja C.,Gallagher, Sarah C.,Horne, Keith,et al. Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XIII. Ultraviolet Time Lag of Hβ Emission in Mrk 142[J]. ASTROPHYSICAL JOURNAL,2023,958(2).
APA	Khatu, Viraja C..,Gallagher, Sarah C..,Horne, Keith.,Cackett, Edward M..,Hu, Chen.,...&Yu, Zhe.(2023).Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XIII. Ultraviolet Time Lag of Hβ Emission in Mrk 142.ASTROPHYSICAL JOURNAL,958(2).
MLA	Khatu, Viraja C.,et al."Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XIII. Ultraviolet Time Lag of Hβ Emission in Mrk 142".ASTROPHYSICAL JOURNAL 958.2(2023).