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相关论文: Dynamical Modeling of the Broad-Line Region with H…

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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 present dynamical modeling of the broad line region (BLR) for a sample of five Seyfert 1 galaxies using reverberation mapping data taken by the Lick AGN Monitoring Project in 2008. By modeling the AGN continuum light curve and H$\beta$…

宇宙学与河外天体物理 · 物理学 2015-06-18 Anna Pancoast , Brendon J. Brewer , Tommaso Treu , Daeseong Park , Aaron J. Barth , Misty C. Bentz , Jong-Hak Woo

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…

Here we investigate the kinematics of the part of the broad line region (BLR) in active galactic nuclei (AGNs) emitting H$\beta$ and H$\alpha$ emission lines. We explore the widths and asymmetries of the broad H$\beta$ and H$\alpha$…

星系天体物理 · 物理学 2022-08-24 Nemanja Rakić

Using a compiled sample of 34 broad-line active galactic nuclei (AGNs) with measured H$\beta$ time lags from the reverberation mapping (RM) method and measured bulge stellar velocity dispersions $\sigma_*$, we calculate the virial factor…

星系天体物理 · 物理学 2019-07-10 Li-Ming Yu , Wei-Hao Bian , Chan Wang , Bi-Xuan Zhao , Xue Ge

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…

This is the first paper in a series devoted to systematic study of the size and structure of the broad-line region (BLR) in active galactic nuclei (AGNs) using reverberation mapping (RM) data. We employ a recently developed Bayesian…

宇宙学与河外天体物理 · 物理学 2014-01-07 Yan-Rong Li , Jian-Min Wang , Luis C. Ho , Pu Du , Jin-Ming Bai

This is the eighth in a series of papers reporting on a large reverberation mapping campaign to measure black hole (BH) mass in high accretion rate active galactic nuclei (AGNs). We employ the recently developed dynamical modeling approach…

Current reverberation mapping (RM) studies primarily focus on single emission lines, particularly the \hb\ line, which may not fully reveal the geometry and kinematic properties of the broad-line region (BLR). To overcome this limitation,…

We present velocity-resolved reverberation lags of H-beta for 20 active galactic nuclei (AGNs) from the Seoul National University AGN Monitoring Project. We detect unambiguous velocity-resolved structures in 12 AGNs, among which eight…

The broad line region (BLR) of luminous active galactic nuclei (AGN) is a prominent observational signature of the accretion flow around supermassive black holes, which can be used to measure their masses (M_BH) over cosmic history. Due to…

星系天体物理 · 物理学 2015-06-24 Jonathan Stern , Joseph F. Hennawi , Jörg-Uwe Pott

I review progress made in understanding the nature of the broad-line region (BLR) of active galactic nuclei (AGNs) and the role BLRs play in the AGN phenomenon. The high equivalent widths of the lines imply a high BLR covering factor, and…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. Martin Gaskell

Broad emission lines are emitted in the surroundings of supermassive black holes in the centers of active galactic nuclei (AGN). This region is spatially not resolved. We intend to get information on the structure and geometry of this broad…

宇宙学与河外天体物理 · 物理学 2015-06-16 W. Kollatschny , M. Zetzl

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…

星系天体物理 · 物理学 2021-01-13 Amit Kumar Mandal , Suvendu Rakshit , C. S. Stalin , R. G. Petrov , Blesson Mathew , Ram Sagar

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.…

星系天体物理 · 物理学 2020-02-05 S. I. Raimundo , M. Vestergaard , M. R. Goad , C. J. Grier , P. R. Williams , B. M. Peterson , T. Treu

Broad emission lines in active galactic nuclei (AGNs) mainly arise from gas photoionized by continuum radiation from an accretion disk around a central black hole. The shape of the broad-line profile, described by ${\cal D}_{_{\rm…

星系天体物理 · 物理学 2016-02-17 Pu Du , Jian-Min Wang , Chen Hu , Luis C. Ho , Yan-Rong Li , Jin-Ming Bai

The structure of the broad emission line region (BLR) in active galactic nuclei (AGN) remains unclear. We test in this paper a flattened configuration model for BLR. The virial theorem, by taking into account the disc shape of BLR, allows…

星系天体物理 · 物理学 2015-10-07 M. Yu. Piotrovich , Yu. N. Gnedin , N. A. Silant'ev , T. M. Natsvlishvili , S. D. Buliga

We present a new model to explain the appearance of red/blue-shifted broad low-ionization emission lines, especially emission lines in optical band, which is commonly considered as an indicator of radial motion of the line emitting gas in…

宇宙学与河外天体物理 · 物理学 2015-05-13 Xue-GUang Zhang , Deborah Dultzin , Ting-Gui Wang , Guinevere Kaufmann

Reverberation mapping (RM) has long been a powerful tool for measuring the masses of supermassive black holes (SMBHs) at the centers of active galactic nuclei (AGNs), but the precision of these mass measurements depends on the so-called…

星系天体物理 · 物理学 2024-07-08 Sen Yang , Pu Du , Jian-Min Wang

The virial coefficient ($f$), which is meant to encapsulate broad-line region (BLR) geometry and kinematics, remains one of the largest sources of systematic uncertainty in black hole mass estimates for Active Galactic Nuclei (AGNs). While…

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