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We present models of the H$\beta$-emitting broad-line region (BLR) in seven Seyfert 1 galaxies from the Lick AGN (Active Galactic Nucleus) Monitoring Project 2011 sample, drawing inferences on the BLR structure and dynamics as well as the…

We have modeled the velocity-resolved reverberation response of the H\b{eta} broad emission line in nine Seyfert 1 galaxies from the Lick Active Galactic Nucleus (AGN) Monitioring Project 2016 sample, drawing inferences on the geometry and…

We present an improved and expanded simply parameterized phenomenological model of the broad line region (BLR) in active galactic nuclei (AGN) for modeling reverberation mapping data. By modeling reverberation mapping data directly, we can…

Astrophysics of Galaxies · Physics 2015-06-22 Anna Pancoast , Brendon J. Brewer , Tommaso Treu

We present dynamical modeling of the broad-line region (BLR) for the highly variable AGN SDSS J141041.25+531849.0 ($z = 0.359$) using photometric and spectroscopic monitoring data from the Sloan Digital Sky Survey Reverberation Mapping…

The Lick AGN Monitoring Project targeted 13 nearby Seyfert 1 galaxies with the intent of measuring the masses of their central black holes using reverberation mapping. The sample includes 12 galaxies selected to have black holes with masses…

The Seyfert 1 galaxy Arp 151 was monitored as part of three reverberation mapping campaigns spanning $2008-2015$. We present modeling of these velocity-resolved reverberation mapping datasets using a geometric and dynamical model for the…

We present a reanalysis of reverberation-mapping data from 2005 for the Seyfert galaxy NGC 4151, supplemented with additional data from the literature to constrain the continuum variations over a significantly longer baseline than the…

Astrophysics of Galaxies · Physics 2022-08-17 Misty C. Bentz , Peter R. Williams , Tommaso Treu

We present a general method to analyze reverberation mapping data that provides both estimates for the black hole mass and for the geometry and dynamics of the broad line region (BLR) in active galactic nuclei (AGN). Our method directly…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Anna Pancoast , Brendon J. Brewer , Tommaso Treu

We have recently completed a 64-night spectroscopic monitoring campaign at the Lick Observatory 3-m Shane telescope with the aim of measuring the masses of the black holes in 12 nearby (z < 0.05) Seyfert 1 galaxies with expected masses in…

Understanding the geometry and kinematics of the broad line region (BLR) of active galactic nuclei (AGN) is important to estimate black hole masses in AGN and study the accretion process. The technique of reverberation mapping (RM) has…

Astrophysics of Galaxies · Physics 2021-01-13 Amit Kumar Mandal , Suvendu Rakshit , C. S. Stalin , R. G. Petrov , Blesson Mathew , Ram Sagar

Reverberation mapping probes the structure of the broad emission-line region (BLR) in active galactic nuclei (AGN). The kinematics of the BLR gas can be used to measure the mass of the central supermassive black hole. The main uncertainty…

Astrophysics of Galaxies · Physics 2015-09-23 Andreas Skielboe , Anna Pancoast , Tommaso Treu , Daeseong Park , Aaron J. Barth , Misty C. Bentz

The Lick AGN Monitoring Project 2011 observing campaign was carried out over the course of 11 weeks in Spring 2011. Here we present the first results from this program, a measurement of the broad-line reverberation lag in the Seyfert 1…

We consider photometric reverberation mapping, where the nuclear continuum variations are monitored via a broad-band filter and the echo of emission line clouds of the broad line region (BLR) is measured with a suitable narrow-band (NB)…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 F. Pozo Nuñez , M. Haas , M. Ramolla , C. Bruckmann , C. Westhues , R. Chini , K. Steenbrugge , R. Lemke , M. Murphy , W. Kollatschny

We present the results of broad-line region (BLR) dynamical modeling for eight high-mass active galactic nuclei (AGNs) from the Seoul National University AGN Monitoring Project, by constraining BLR geometry and kinematics as well as black…

Astrophysics of Galaxies · Physics 2026-04-28 Shu Wang , Jong-Hak Woo , Lizvette Villafaña , Tommaso Treu , Elena Gallo

The broad-line region (BLR) of active galactic nuclei (AGNs) traces gas close to the central supermassive black hole (BH). Recent reverberation mapping (RM) and interferometric spectro-astrometry data have enabled detailed investigations of…

We present inferences on the geometry and kinematics of the broad-Hbeta line-emitting region in four active galactic nuclei monitored as a part of the fall 2010 reverberation mapping campaign at MDM Observatory led by the Ohio State…

Astrophysics of Galaxies · Physics 2017-11-15 C. J. Grier , A. Pancoast , A. J. Barth , M. M. Fausnaugh , B. J. Brewer , T. Treu , B. M. Peterson

We carried out spectroscopic monitoring of 21 low-redshift Seyfert 1 galaxies using the Kast double spectrograph on the 3-m Shane telescope at Lick Observatory from April 2016 to May 2017. Targeting active galactic nuclei (AGN) with…

We present geometric and dynamical modeling of the broad line region for the multi-wavelength reverberation mapping campaign focused on NGC 5548 in 2014. The dataset includes photometric and spectroscopic monitoring in the optical and…

Astrophysics of Galaxies · Physics 2020-10-21 P. R. Williams , A. Pancoast , T. Treu , B. J. Brewer , B. M. Peterson , A. J. Barth , M. A. Malkan , G. De Rosa , Keith Horne , G. A. Kriss , N. Arav , M. C. Bentz , E. M. Cackett , E. Dalla Bontà , M. Dehghanian , C. Done , G. J. Ferland , C. J. Grier , J. Kaastra , E. Kara , C. S. Kochanek , S. Mathur , M. Mehdipour , R. W. Pogge , D. Proga , M. Vestergaard , T. Waters , S. M. Adams , M. D. Anderson , P. Arévalo , T. G. Beatty , V. N. Bennert , A. Bigley , S. Bisogni , G. A. Borman , T. A. Boroson , M. C. Bottorff , W. N. Brandt , A. A. Breeveld , M. Brotherton , J. E. Brown , J. S. Brown , G. Canalizo , M. T. Carini , K. I. Clubb , J. M. Comerford , E. M. Corsini , D. M. Crenshaw , S. Croft , K. V. Croxall , A. J. Deason , A. De Lorenzo-Cáceres , K. D. Denney , M. Dietrich , R. Edelson , N. V. Efimova , J. Ely , P. A. Evans , M. M. Fausnaugh , A. V. Filippenko , K. Flatland , O. D. Fox , E. Gardner , E. L. Gates , N. Gehrels , S. Geier , J. M. Gelbord , L. Gonzalez , V. Gorjian , J. E. Greene , D. Grupe , A. Gupta , P. B. Hall , C. B. Henderson , S. Hicks , E. Holmbeck , T. W. -S. Holoien , T. Hutchison , M. Im , J. J. Jensen , C. A. Johnson , M. D. Joner , J. Jones , S. Kaspi , P. L. Kelly , J. A. Kennea , M. Kim , S. Kim , S. C. Kim , A. King , S. A. Klimanov , C. Knigge , Y. Krongold , M. W. Lau , J. C. Lee , D. C. Leonard , Miao Li , P. Lira , C. Lochhaas , Zhiyuan Ma , E. R. Manne-Nicholas , F. MacInnis , J. C. Mauerhan , R. McGurk , I. M. Mc Hardy , C. Montuori , L. Morelli , A. Mosquera , D. Mudd , F. Müller-Sánchez , S. V. Nazarov , R. P. Norris , J. A. Nousek , M. L. Nguyen , P. Ochner , D. N. Okhmat , I. Papadakis , J. R. Parks , L. Pei , M. T. Penny , A. Pizzella , R. Poleski , J. -U. Pott , S. E. Rafter , H. -W. Rix , J. Runnoe , D. A. Saylor , J. S. Schimoia , B. Scott , S. G. Sergeev , B. J. Shappee , I. Shivvers , M. Siegel , G. V. Simonian , A. Siviero , A. Skielboe , G. Somers , M. Spencer , D. Starkey , D. J. Stevens , H. -I. Sung , J. Tayar , N. Tejos , C. S. Turner , P. Uttley , J. Van Saders , S. A. Vaughan , L. Vican , S. Villanueva , C. Villforth , Y. Weiss , J. -H. Woo , H. Yan , S. Young , H. Yuk , W. Zheng , W. Zhu , Y. Zu

The structure of the broad line region (BLR) is an essential ingredient in the determination of active galactic nuclei (AGN) virial black hole masses, which in turn are important to study the role of black holes in galaxy evolution.…

Astrophysics of Galaxies · Physics 2020-02-05 S. I. Raimundo , M. Vestergaard , M. R. Goad , C. J. Grier , P. R. Williams , B. M. Peterson , T. Treu
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