279 citations · 345 across the 8 of their papers we have counts for
8 papers
AGN-DB: A Unified Multi-Wavelength Database of Active Galactic Nuclei
Alessandro Peca, Nico Cappelluti, C. Megan Urry +29
We present the Active Galactic Nuclei Database (AGN-DB), a comprehensive, multi-wavelength catalog compiled from more than 100 publicly available AGN catalogs and samples released…
Estimating Black Hole Masses in Obscured AGN from X-ray and Optical Emission Line Luminosities
S. LaMassa, I. Farrow, C. M. Urry +6
We test a novel method for estimating black hole masses () in obscured active galactic nuclei (AGN) that uses proxies to measure the full-width half maximum of broad H$…
Hubble Space Telescope Observations of Nearby Type 1 Quasars. I. Characterisation of the Extended [O III] 5007Å Emission
Anna Trindade Falcão, S. B. Kraemer, T. C. Fischer +13
We use the Hubble Space Telescope to analyse the extended [O III] 5007A emission in seven bright radio-quiet type 1 quasars (QSO1s), focusing on the morphology and physical conditi…
Resolving Dual Active Galactic Nuclei with ~100 pc separation in MCG-03-34-64
Anna Trindade Falcao, T. J. Turner, S. B. Kraemer +4
We report the serendipitous multiwavelength discovery of a candidate dual black hole system with a separation of ~100 pc, in the gas-rich luminous infrared galaxy MCG-03-34-64 (z=0…
Accretion History of AGN III: Radiative Efficiency and AGN Contribution to Reionization
Tonima Tasnim Ananna, C. Megan Urry, Ezequiel Treister +6
The cosmic history of supermassive black hole (SMBH) growth is important for understanding galaxy evolution, reionization and the physics of accretion. Recent NuSTAR, Swift-BAT and…
Dying of the Light: An X-ray Fading Cold Quasar at z ~ 0.405
Kevin C. Cooke, Allison Kirkpatrick, Michael Estrada +11
Cold quasars are a rare subpopulation observed to host unobscured, X-ray luminous active galactic nuclei (AGN) while also retaining a cold gas supply fueling high star formation ra…
Determining Inclinations of Active Galactic Nuclei Via Their Narrow-Line Region Kinematics - II. Correlation With Observed Properties
T. C. Fischer, D. M. Crenshaw, S. B. Kraemer +2
Active Galactic Nuclei (AGN) are axisymmetric systems to first order; their observed properties are likely strong functions of inclination with respect to our line of sight, yet th…
Determining Inclinations of Active Galactic Nuclei Via Their Narrow-Line Region Kinematics - I. Observational Results
T. C. Fischer, D. M. Crenshaw, S. B. Kraemer +1
Active Galactic Nuclei (AGN) are axisymmetric systems to first order; their observed properties are likely strong functions of inclination with respect to our line of sight. Howeve…