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Astronomy Colloquium — Scott Gaudi
November 10 @ 3:30 pm - 4:30 pm
Field: Stars & Planets
Institution: Ohio State University
Title: The Roman Galactic Exoplanet Survey
Abstract: I summarize the scientific motivation and properties of the Roman Galactic Exoplanet Survey (RGES), one possible realization of the Galactic Bulge Time Domain Survey, which itself is one of three core community surveys that will be carried out with NASA’s Nancy Roman Space Telescope (Roman). The notional RGES survey will consist of photometric monitoring of a ~2 sq. degree area toward the Galactic bulge every 15 minutes in a wide, 1-2 micron filter in order to search for cold planets using gravitational microlensing. The survey will consist of six ~72-day seasons, with most of the seasons being concentrated early and late in the nominal 5-year Roman prime mission. I will summarize the expected yield of the RGES survey, and then describe future activities in preparation for, and further definition of, the Galactic Bulge Time Domain Survey.
Everyone in Astronomy and Physics departments are welcome. Also accessible via Zoom here.