1.3k citations · 2.7k across the 17 of their papers we have counts for
Showing 2015 · astro-ph.GAShow all
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astro-ph.GA2015★ 318 cited
A systematic search for close supermassive black hole binaries in the Catalina Real-Time Transient Survey
Matthew J. Graham, S. G. Djorgovski, Daniel Stern +6
Hierarchical assembly models predict a population of supermassive black hole (SMBH) binaries. These are not resolvable by direct imaging but may be detectable via periodic variabil…
astro-ph.GA2015★ 367 cited
A possible close supermassive black-hole binary in a quasar with optical periodicity
Matthew J. Graham, S. George Djorgovski, Daniel Stern +6
Quasars have long been known to be variable sources at all wavelengths. Their optical variability is stochastic, can be due to a variety of physical mechanisms, and is well-describ…