NRAO-Socorro Colloquium - CANCELLED
This talk has been cancelled.
DR. Brad Cenko of NASA's Goddard Space Flight Center, is the guest speaker for the NRAO-Socorro Colloquium. His talk is "Recent Observational Puzzles from Tidal Disruption Flares: Towards Viable Probes in the LSST Era."
Cenko will present an overview of efforts across the electromagnetic spectrum to identify and study tidal disruption flares (TDFs), when a star wanders too close to a super-massive black hole and is torn apart by tidal forces. In particular he will focus on three unexpected surprises that challenge the most basic picture of these events: 1) large inferred radii for the optical/UV-emitting material; 2) the ubiquity of outflows, detected at radio, X-ray, and UV wavelengths; and, 3) the peculiar atomic abundances observed in the UV and optical spectra of these objects.
11 a.m. in the NRAO auditorium.