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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…
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…
A serendipitous all sky survey for bright objects in the outer solar system
M. E. Brown, M. E. Bannister, B. P. Schmidt +9
We use seven year's worth of observations from the Catalina Sky Survey and the Siding Spring Survey covering most of the northern and southern hemisphere at galactic latitudes high…