activity
19972023
most citedThe unusual afterglow of GRB 980326: evidence for the gamma-ray burst/supernova connection

487 citations · 11.9k across the 114 of their papers we have counts for

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Showing astro-ph.GAShow all

12 papers · 1 filter

astro-ph.GA2023★ 13 cited

What Does the Virial Coefficient of the \Hb Broad-Line Region Depend On?

Lizvette Villafaña, Peter R. Williams, Tommaso Treu +37

We combine our dynamical modeling black hole mass measurements from the Lick AGN Monitoring Project 2016 sample with measured cross-correlation time lags and line widths to recover…

astro-ph.GA2022★ 36 cited

The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-Resolved H\b{eta} Lags in Luminous Seyfert Galaxies

Lizvette Villafaña, Peter R. Williams, Tommaso Treu +62

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…

astro-ph.GA2021

The Lick AGN Monitoring Project 2016: Velocity-Resolved Hβ Lags in Luminous Seyfert Galaxies

Vivian U, Aaron J. Barth, H. Alexander Vogler +61

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 M…

astro-ph.GA2021★ 20 cited

H Reverberation Mapping of the Intermediate-Mass Active Galactic Nucleus in NGC 4395

Hojin Cho, Jong-Hak Woo, Tommaso Treu +24

We present the results of a high-cadence spectroscopic and imaging monitoring campaign of the active galactic nucleus (AGN) of NGC 4395. High signal-to-noise-ratio spectra were obt…

astro-ph.GA2020★ 48 cited

Space Telescope and Optical Reverberation Mapping Project. XII. Broad-Line Region Modeling of NGC 5548

P. R. Williams, A. Pancoast, T. Treu +155

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 photo…

astro-ph.GA2020★ 79 cited

Space Telescope and Optical Reverberation Mapping Project. IX. Velocity-Delay Maps for Broad Emission Lines in NGC 5548

Keith Horne, G. De Rosa, B. M. Peterson +155

We report velocity-delay maps for prominent broad emission lines, Ly_alpha, CIV, HeII and H_beta, in the spectrum of NGC5548. The emission-line responses inhabit the interior of a…

astro-ph.GA2017★ 39 cited

Space Telescope and Optical Reverberation Mapping Project. VII. Understanding the UV anomaly in NGC 5548 with X-Ray Spectroscopy

S. Mathur, A. Gupta, K. Page +147

During the Space Telescope and Optical Reverberation Mapping Project (STORM) observations of NGC 5548, the continuum and emission-line variability became de-correlated during the s…

astro-ph.GA2017★ 130 cited

Space Telescope and Optical Reverberation Mapping Project. V. Optical Spectroscopic Campaign and Emission-Line Analysis for NGC 5548

L. Pei, M. M. Fausnaugh, A. J. Barth +153

We present the results of an optical spectroscopic monitoring program targeting NGC 5548 as part of a larger multi-wavelength reverberation mapping campaign. The campaign spanned s…

astro-ph.GA2016★ 104 cited

Space Telescope and Optical Reverberation Mapping Project VI: reverberating Disk Models for NGC 5548

D. Starkey, Keith Horne, M. M. Fausnaugh +90

We conduct a multiwavelength continuum variability study of the Seyfert 1 galaxy NGC 5548 to investigate the temperature structure of its accretion disk. The 19 overlapping continu…

astro-ph.GA2015★ 314 cited

Space Telescope and Optical Reverberation Mapping Project. III. Optical Continuum Emission and Broad-Band Time Delays in NGC 5548

M. M. Fausnaugh, K. D. Denney, A. J. Barth +94

We present ground-based optical photometric monitoring data for NGC 5548, part of an extended multi-wavelength reverberation mapping campaign. The light curves have nearly daily ca…

astro-ph.GA2014★ 45 cited

Reverberation Mapping of the Kepler-Field AGN KA1858+4850

Liuyi Pei, Aaron J. Barth, Greg S. Aldering +40

KA1858+4850 is a narrow-line Seyfert 1 galaxy at redshift 0.078 and is among the brightest active galaxies monitored by the Kepler mission. We have carried out a reverberation mapp…

astro-ph.GA2009

O/IR Polarimetry for the 2010 Decade (GAN): Science at the Edge, Sharp Tools for All

Dan Clemens, B. -G. Andersson, Andy Adamson +16

Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the field of Galactic science. Community-based White Paper to Astro2010…