414 citations · 8.8k across the 184 of their papers we have counts for
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Black-Hole Mass and Growth Rate at z~4.8: A Short Episode of Fast Growth Followed by Short Duty Cycle Activity
Benny Trakhtenbrot, Hagai Netzer, Paulina Lira +1
We present new Gemini-North/NIRI and VLT/SINFONI H-band spectroscopy for a flux limited sample of 40 z~4.8 active galactic nuclei, selected from the Sloan Digital Sky Survey. The s…
Weak-Line Quasars at High Redshift: Extremely High Accretion Rates or Anemic Broad-Line Regions?
Ohad Shemmer, Benny Trakhtenbrot, Scott F. Anderson +9
We present Gemini-North K-band spectra of two representative members of the class of high-redshift quasars with exceptionally weak rest-frame ultraviolet emission lines (WLQs), SDS…
The Evolution of M_*/M_BH Between z=2 and z=0
Benny Trakhtenbrot, Hagai Netzer
We propose a novel method to estimate M_*/M_BH, the ratio of stellar mass (M_*) to black hole mass (M_BH), at various redshifts using two recent observational results: the correlat…