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AGN STORM 2. I. First results: A Change in the Weather of Mrk 817
Kara,Erin1; Mehdipour,Missagh2; Kriss,Gerard A.2; Cackett,Edward M.3; Arav,Nahum4; Barth,Aaron J.5; Byun,Doyee4; Brotherton,Michael S.6; De Rosa,Gisella2; Gelbord,Jonathan7; Hernández Santisteban,Juan V.8; Hu,Chen9; Kaastra,Jelle10,11; Landt,Hermine12; Li,Yan-Rong9; Miller,Jake A.3; Montano,John5; Partington,Ethan3; Aceituno,Jesús13,14; Bai JM(白金明)15; Bao,Dongwei9,16; Bentz,Misty C.17; Brink,Thomas G.18; Chelouche,Doron19,20; Chen,Yong-Jie9,16; Colmenero,Encarni Romero21,22; Bontà,Elena Dalla23,24; Dehghanian,Maryam25; Du,Pu9; Edelson,Rick26; Ferland,Gary J.25; Ferrarese,Laura27; Fian,Carina20,28; Filippenko,Alexei V.18,29; Fischer,Travis30; Goad,Michael R.31; González Buitrago,Diego H.32; Gorjian,Varoujan33; Grier,Catherine J.34; Guo,Wei-Jian9,16; Hall,Patrick B.35; Ho,Luis C.36,37; Homayouni,Y.2; Horne,Keith8; Ili?,Dragana38,39; Jiang,Bo-Wei9,16; Joner,Michael D.40; Kaspi,Shai28; Kochanek,Christopher S.41,42; Korista,Kirk T.43; Kynoch,Daniel44; Li,Sha-Sha9,16; Liu,Jun-Rong9,16; M. cHardy,Ian M.45; McLane,Jacob N.6; Mitchell,Jake A. J.12; Netzer,Hagai46; Olson,Kianna A.6; Pogge,Richard W.41,42; Popovi?,Luka C?.38,47; Proga,Daniel48; Storchi-Bergmann,Thaisa49; Strasburger,Erika18; Treu,Tommaso50; Vestergaard,Marianne34,51; Wang,Jian-Min9,52,53; Ward,Martin J.12; Waters,Tim48; Williams,Peter R.50; Yang,Sen9,16; Yao,Zhu-Heng9,16; Zastrocky,Theodora E.6; Zhai,Shuo9,16; Zu,Ying54
发表期刊The Astrophysical Journal
2021-12
卷号922期号:2
DOI10.3847/1538-4357/ac2159
产权排序第15完成单位
收录类别SCI
摘要

Abstract We present the first results from the ongoing, intensive, multiwavelength monitoring program of the luminous Seyfert 1 galaxy Mrk 817. While this active galactic nucleus was, in part, selected for its historically unobscured nature, we discovered that the X-ray spectrum is highly absorbed, and there are new blueshifted, broad, and narrow UV absorption lines, which suggest that a dust-free, ionized obscurer located at the inner broad-line region partially covers the central source. Despite the obscuration, we measure UV and optical continuum reverberation lags consistent with a centrally illuminated Shakura–Sunyaev thin accretion disk, and measure reverberation lags associated with the optical broad-line region, as expected. However, in the first 55 days of the campaign, when the obscuration was becoming most extreme, we observe a de-coupling of the UV continuum and the UV broad emission-line variability. The correlation recovered in the next 42 days of the campaign, as Mrk 817 entered a less obscured state. The short C iv and Lyα lags suggest that the accretion disk extends beyond the UV broad-line region.

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:000722730500001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE GALACTIC NUCLEIBROAD-LINE REGIONSUPERMASSIVE BLACK-HOLESX-RAY REVERBERATIONDRIVEN DISK WINDSSPACE TELESCOPEACCRETION-DISKEMISSION-LINESNGC 5548LIGHT CURVES
引用统计
被引频次:34[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/114a53/24747
专题南方基地
通讯作者Kara,Erin
作者单位1.MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
2.Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
3.Department of Physics and Astronomy, Wayne State University, 666 W. Hancock Street, Detroit, MI, 48201, USA
4.Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA
5.Department of Physics and Astronomy, 4129 Frederick Reines Hall, University of California, Irvine, CA, 92697-4575, USA
6.Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA
7.Spectral Sciences Inc., 4 Fourth Avenue, Burlington, MA 01803, USA
8.SUPA School of Physics and Astronomy, North Haugh, St. Andrews, KY16 9SS, Scotland, UK
9.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People's Republic of China
10.SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
11.Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
12.Centre for Extragalactic Astronomy, Department of Physics, Durham University, South Road, Durham DH1 3LE, UK
13.Centro Astronomico Hispano Alemán, Sierra de los filabres sn, E-04550 Gérgal, Almería, Spain
14.Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la astronomía sn, E-18008 Granada, Spain
15.Yunnan Observatories, The Chinese Academy of Sciences, Kunming 650011, People's Republic of China
16.School of Astronomy and Space Science, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People's Republic of China
17.Department of Physics and Astronomy, Georgia State University, 25 Park Place, Suite 605, Atlanta, GA 30303, USA
18.Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
19.Department of Physics, Faculty of Natural Sciences, University of Haifa, Haifa 3498838, Israel
20.Haifa Research Center for Theoretical Physics and Astrophysics, University of Haifa, Haifa 3498838, Israel
21.South African Astronomical Observatory, P.O Box 9, Observatory 7935, Cape Town, South Africa
22.Southern African Large Telescope Foundation, P.O Box 9, Observatory 7935, Cape Town, South Africa
23.Dipartimento di Fisica e Astronomia “G. Galilei,” Universitá di Padova, Vicolo dell’Osservatorio 3, I-35122 Padova, Italy
24.INAF-Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5 I-35122, Padova, Italy
25.Department of Physics and Astronomy, The University of Kentucky, Lexington, KY 40506, USA
26.Eureka Scientific Inc., 2452 Delmer St. Suite 100, Oakland, CA 94602, USA
27.NRC Herzberg Astronomy and Astrophysics Research Centre, 5071 West Saanich Road, Victoria, BC, V9E 2E7, Canada
28.School of Physics and Astronomy and Wise observatory, Tel Aviv University, Tel Aviv 6997801, Israel
29.Miller Institute for Basic Research in Science, University of California, Berkeley, CA 94720, USA
30.AURA for ESA, Space Telescope Science Institute, Baltimore, MD, USA, 3700 San Martin Drive, Baltimore, MD 21218, USA
31.School of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
32.Instituto de Astronomía, Universidad Nacional Autónoma de México, Km 103 Carretera Tijuana-Ensenada, 22860 Ensenada B.C., México
33.Jet Propulsion Laboratory, M/S 169-327, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
34.Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
35.Department of Physics and Astronomy, York University, Toronto, ON M3J 1P3, Canada
36.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China
37.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People's Republic of China
38.Department of Astronomy, Faculty of Mathematics, University of Belgrade, Studentski trg 16,11000 Belgrade, Serbia
39.Humboldt Research Fellow, Hamburger Sternwarte, Universit?t Hamburg, Gojenbergsweg 112, D-21029 Hamburg, Germany
40.Department of Physics and Astronomy, N283 ESC, Brigham Young University, Provo, UT 84602, USA
41.Department of Astronomy, The Ohio State University, 140 W. 18th Avenue, Columbus, OH 43210, USA
42.Center for Cosmology and AstroParticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210, USA
43.Department of Physics, Western Michigan University, 1120 Everett Tower, Kalamazoo, MI 49008-5252, USA
44.Astronomical Institute of the Czech Academy of Sciences, Bo?ní II 1401/1a, CZ-14100 Prague, Czechia
45.School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK
46.School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
47.Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia
48.Department of Physics & Astronomy, University of Nevada, Las Vegas 4505 S. Maryland Parkway, Las Vegas, NV, 89154-4002, USA
49.Departamento de Astronomia—IF, Universidade Federal do Rio Grande do Sul, CP 150501, 91501-970 Porto Alegre, RS, Brazil
50.Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA
51.DARK, The Niels Bohr Institute, University of Copenhagen, Jagtvej 128, DK-2200 Copenhagen, Denmark
52.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People's Republic of China
53.National Astronomical Observatories of China, 20A Datun Road, Beijing 100020, People's Republic of China
54.Department of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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GB/T 7714
Kara,Erin,Mehdipour,Missagh,Kriss,Gerard A.,et al. AGN STORM 2. I. First results: A Change in the Weather of Mrk 817[J]. The Astrophysical Journal,2021,922(2).
APA Kara,Erin.,Mehdipour,Missagh.,Kriss,Gerard A..,Cackett,Edward M..,Arav,Nahum.,...&Zu,Ying.(2021).AGN STORM 2. I. First results: A Change in the Weather of Mrk 817.The Astrophysical Journal,922(2).
MLA Kara,Erin,et al."AGN STORM 2. I. First results: A Change in the Weather of Mrk 817".The Astrophysical Journal 922.2(2021).
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