220 citations · 299 across the 3 of their papers we have counts for
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astro-ph.GA2009★ 37 cited
HST Images and KPNO Spectroscopy of the Binary Black Hole Candidate SDSS J153636.22+044127.0
Tod R. Lauer, Todd A. Boroson
We present HST WFPC2/PC images and KPNO 4-m longslit spectroscopy of the QSO SDSS J153636.22+044127.0, which we advanced as a candidate binary supermassive black hole. The images r…
astro-ph.GA2009★ 220 cited
A Candidate Sub-Parsec Supermassive Binary Black Hole System
Todd A. Boroson, Tod R. Lauer
We identify SDSS J153636.22+044127.0, a QSO discovered in the Sloan Digital Sky Survey, as a promising candidate for a binary black hole system. This QSO has two broad-line emissio…