AGN STORM 2. I. First results: A Change in the Weather of Mrk 817
AGN STORM 2. I. First results: A Change in the Weather of Mrk 817
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AGN STORM 2. I. 第一个结果:Mrk 817 天气的变化
DOI:
10.3847/1538-4357/ac2159
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发表时间:
2021-05
期刊:
影响因子:
--
通讯作者:
John Mon
中科院分区:
文献类型:
--
作者:
Erin Kara;Missagh Mehdipour;Gerard A. Kriss;Edward M. Cackett;Nahum Arav;Aaron J. Barth;Doyee Byun;Michael S. Brotherton;Gisella De Rosa;Jonathan Gelbord;Juan V. Hernández Santisteban;Chen Hu;Jelle Kaastra;Hermine L;t;Yan-Rong Li;Jake A. Miller;John Mon
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.
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DOI:
10.1086/177543
发表时间:
1995-11
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Chiang;N. Murray
通讯作者:
J. Chiang;N. Murray
DOI:
10.3847/1538-4357/ab1b48
发表时间:
2018-12
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Dehghanian;G. Ferland;G. Kriss;B. Peterson;S. Mathur;M. Mehdipour;F. Guzmán;M. Chatzikos;P. V. Hoof;R. Williams;N. Arav;A. Barth;M. Bentz;S. Bisogni;W. Brandt;D. Crenshaw;E. Bontà;G. D. Rosa;M. Fausnaugh;J. Gelbord;M. Goad;A. Gupta;K. Horne;J. Kaastra;C. Knigge;K. Korista;I. McHardy;R. Pogge;D. Starkey;M. Vestergaard
通讯作者:
M. Dehghanian;G. Ferland;G. Kriss;B. Peterson;S. Mathur;M. Mehdipour;F. Guzmán;M. Chatzikos;P. V. Hoof;R. Williams;N. Arav;A. Barth;M. Bentz;S. Bisogni;W. Brandt;D. Crenshaw;E. Bontà;G. D. Rosa;M. Fausnaugh;J. Gelbord;M. Goad;A. Gupta;K. Horne;J. Kaastra;C. Knigge;K. Korista;I. McHardy;R. Pogge;D. Starkey;M. Vestergaard
影响因子:
3.5
作者:
K. Horne;B. Peterson;S. Collier;H. Netzer
通讯作者:
K. Horne;B. Peterson;S. Collier;H. Netzer
影响因子:
3.5
作者:
B. Woodgate;R. Kimble;C. Bowers;S. Kraemer;M. Kaiser;A. Danks;J. Grady;J. Loiacono;M. Brumfield;L. Feinberg;T. Gull;S. Heap;S. Maran;D. Lindler;D. Hood;W. Meyer;C. VanHouten;V. Argabright;Steven Franka;R. L. Bybee;D. Dorn;M. Bottema;R. Woodruff;D. Michika;J. Sullivan;J. Hetlinger;C. W. Ludtke;R. Stocker;A. Delamere;D. Rose;I. Becker;H. Garner;J. Timothy;M. Blouke;C. Joseph;G. Hartig;R. Green;E. Jenkins;J. Linsky;J. Hutchings;H. Moos;A. Boggess;F. Roesler;D. Weistrop
通讯作者:
B. Woodgate;R. Kimble;C. Bowers;S. Kraemer;M. Kaiser;A. Danks;J. Grady;J. Loiacono;M. Brumfield;L. Feinberg;T. Gull;S. Heap;S. Maran;D. Lindler;D. Hood;W. Meyer;C. VanHouten;V. Argabright;Steven Franka;R. L. Bybee;D. Dorn;M. Bottema;R. Woodruff;D. Michika;J. Sullivan;J. Hetlinger;C. W. Ludtke;R. Stocker;A. Delamere;D. Rose;I. Becker;H. Garner;J. Timothy;M. Blouke;C. Joseph;G. Hartig;R. Green;E. Jenkins;J. Linsky;J. Hutchings;H. Moos;A. Boggess;F. Roesler;D. Weistrop
DOI:
10.1086/317154
发表时间:
2000
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Proga;J. Stone;T. Kallman
通讯作者:
D. Proga;J. Stone;T. Kallman