"Circumbinary Accretion: From Supermassive Binary Black Holes to Circumbinary Planets"
Circumbinary disks have been observed in a number of young stellar systems, and are the birth place for circumbinary planets found by the Kepler misssion. They are also expected to exist around supermassive black hole binaries as a consequence of accretion from the interstellar medium following galaxy mergers. I will discuss recent works on numerical modeling of circumbinary accretion, focusing short-...
Beyond Advanced LIGO: the future of ground based observations
Abstract: Advanced LIGO started the era of gravitational wave astronomy during its first observing run, O1, in 2015. Since then, the international gravitational wave community has been making plans to define the future of ground based gravitational wave observations. In this talk I will discuss current ideas for extending the astrophysical reach of ground based gravitational wave detectors up to a factor 10-20 beyond Advanced LIGO.
"The KELT Transit Survey: Hot Planets around Hot, Bright Stars"
ABSTRACT: The KELT Transit Survey consists of a pair of small-aperture, wide-angle automated telescope located at Winer Observatory in Sonoita, Arizona and the South African Astronomical Observatory (SAAO) in Sutherland, South Africa. Together, they are surveying roughly 60% of the sky for transiting planets. By virtue of their small apertures (42 mm) and large fields-of-view (26 degrees x 26 degrees), KELT is most sensitive to hot Jupiters transiting relatively bright (V~8-11), and thus relatively hot...
"The Electromagnetic Counterparts of Gravitational Wave Sources"
Abstract: The combined study of gravitational wave and electromagnetic signals from compact object mergers can provide unique insight that is not accessible through each technique alone. I will review expected EM counterparts of compact object mergers, motivated both by existing observations of short gamma-ray bursts, as well as theoretical considerations. I will also highlight the observational challenges of finding such counterparts in the large localization regions of gravitational wave sources
Abstract: I will review the basic physics of gravitational wave emission from binary systems, describing how the characteristics of a binary get imprinted on its gravitational waves, and thus how measuring these waves teaches us about the binary. I will describe briefly the techniques which are used to model binary systems, providing an introduction to active research programs in binary gravitational-wave source modeling.