414 citations · 8.8k across the 184 of their papers we have counts for
10 papers · 1 filter
A population of luminous accreting black holes with hidden mergers
Michael J. Koss, Laura Blecha, Phillip Bernhard +11
Major galaxy mergers are thought to play an important part in fuelling the growth of supermassive black holes. However, observational support for this hypothesis is mixed, with som…
BAT AGN Spectroscopic Survey - XI. The Covering Factor of Dust and Gas in Swift/BAT Active Galactic Nuclei
Kohei Ichikawa, Claudio Ricci, Yoshihiro Ueda +10
We quantify the luminosity contribution of active galactic nuclei (AGN) to the 12 m, mid-infrared (MIR; 5-38 m), and the total IR (5-1000 m) emission in the local AGN dete…
An FMOS Survey of moderate-luminosity broad-line AGN in COSMOS, SXDS and E-CDF-S
A. Schulze, J. D. Silverman, D. Kashino +13
We present near-IR spectroscopy in J- and H-band for a large sample of 243 X-ray selected moderate-luminosity type-1 AGN in the COSMOS, SXDS and E-CDF-S survey fields using the mul…
AGN evolution from galaxy evolution viewpoint - II
Neven Caplar, Simon J. Lilly, Benny Trakhtenbrot
In order to relate the observed evolution of the galaxy stellar mass function and the luminosity function of active galactic nuclei (AGN), we explore a co-evolution scenario in whi…
BAT AGN Spectroscopic Survey -- XII. The relation between coronal properties of Active Galactic Nuclei and the Eddington ratio
C. Ricci, L. C. Ho, A. C. Fabian +12
The bulk of the X-ray emission in Active Galactic Nuclei (AGN) is produced very close to the accreting supermassive black hole (SMBH), in a corona of hot electrons which up scatter…
Can we improve CIV-based single epoch black hole mass estimations?
J. E. Mejía-Restrepo, B. Trakhtenbrot, P. Lira +1
In large optical survey at high redshifts (), the CIV broad emission line is the most practical alternative to estimate the mass () of active super-massive blac…
A model for AGN variability on multiple timescales
Lia F. Sartori, Kevin Schawinski, Benny Trakhtenbrot +5
We present a framework to link and describe AGN variability on a wide range of timescales, from days to billions of years. In particular, we concentrate on the AGN variability feat…
The fraction of AGN in major merger galaxies and its luminosity dependence
Anna K. Weigel, Kevin Schawinski, Ezequiel Treister +2
We use a phenomenological model which connects the galaxy and AGN populations to investigate the process of AGN triggering through major galaxy mergers at z~0. The model uses stell…
The 105 month Swift-BAT all-sky hard X-ray survey
Kyuseok Oh, Michael Koss, Craig B. Markwardt +10
We present a catalog of hard X-ray sources detected in the first 105 months of observations with the Burst Alert Telescope (BAT) coded mask imager on board the Swift observatory. T…
Fast-growing SMBHs in Fast-growing Galaxies, at High Redshifts: the Role of Major Mergers as Revealed by ALMA
Benny Trakhtenbrot, Paulina Lira, Hagai Netzer +3
We present a long-term, multi-wavelength project to understand the epoch of fastest growth of the most massive black holes by using a sample of 40 luminous quasars at z~4.8. These…