481 citations · 2.7k across the 27 of their papers we have counts for
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astro-ph.CO2011★ 69 cited
Can we measure the accretion efficiency of Active Galactic Nuclei?
S. I. Raimundo, A. C. Fabian, R. V. Vasudevan +2
The accretion efficiency for individual black holes is very difficult to determine accurately. There are many factors that can influence each step of the calculation, such as the d…
astro-ph.CO2011★ 138 cited
Chandra Discovery of a Binary Active Galactic Nucleus in Mrk 739
Michael Koss, Richard Mushotzky, Ezequiel Treister +6
We have discovered a binary AGN in the galaxy Mrk 739 using Chandra and Swift BAT. We find two luminous L_2-10 keV=1.1*10^43 and 1.0*10^42 erg/s, unresolved nuclei with a projected…