681 citations · 2.1k across the 47 of their papers we have counts for
7 papers · 1 filter
Probing black hole accretion tracks, scaling relations and radiative efficiencies from stacked X-ray active galactic nuclei
Francesco Shankar, David H. Weinberg, Christopher Marsden +25
The masses of supermassive black holes at the centres of local galaxies appear to be tightly correlated with the mass and velocity dispersions of their galactic hosts. However, the…
Accretion History of AGN II: Constraints on AGN Spectral Parameters using the Cosmic X-ray Background
Tonima Tasnim Ananna, Ezequiel Treister, Claudia M. Urry +5
We constrain X-ray spectral shapes for the ensemble of AGN based on the shape of the Cosmic X-ray Background (CXB). Specifically, we rule out regions of X-ray spectral parameter sp…
Photometric redshifts for X-ray-selected active galactic nuclei in the eROSITA era
M. Brescia, M. Salvato, S. Cavuoti +5
With the launch of eROSITA (extended Roentgen Survey with an Imaging Telescope Array), successfully occurred on 2019 July 13, we are facing the challenge of computing reliable phot…
The Spectral Energy Distributions of Active Galactic Nuclei
M. J. I. Brown, K. J. Duncan, H. Landt +5
We present spectral energy distributions (SEDs) of 41 active galactic nuclei, derived from multiwavelength photometry and archival spectroscopy. All of the SEDs span at least 0.09…
The Accretion History of AGN: A Newly Defined Population of Cold Quasars
Allison Kirkpatrick, C. Megan Urry, Jason Brewster +15
Quasars are the most luminous of active galactic nuclei (AGN), and are perhaps responsible for quenching star formation in their hosts. The Stripe 82X catalog covers 31.3 deg o…
SDSS-IV eBOSS Spectroscopy of X-ray and WISE AGN in Stripe 82X: Overview of the Demographics of X-ray and Mid-Infrared Selected Active Galactic Nuclei
Stephanie M. LaMassa, Antonis Georgakakis, M. Vivek +5
We report the results of a Sloan Digital Sky Survey-IV eBOSS program to target X-ray sources and mid-infrared-selected WISE AGN candidates in a 36.8 deg region of Stripe 82. Ab…
The Spectral Energy Distributions of Active Galactic Nuclei
M. J. I. Brown, K. J. Duncan, H. Landt +3
We present ongoing work on the spectral energy distributions (SEDs) of active galactic nuclei (AGNs), derived from X-ray, ultraviolet, optical, infrared and radio photometry and sp…