Institute for Advanced Study Informal Astrophysics Seminar - ABSTRACT ADDED

The Physics of Stellar Tidal Disruption

Approximately a dozen luminous flares located at the centers of their host galaxies have been associated with the tidal disruption of a star by a supermassive black hole. Analytical models of tides make one of two assumptions to make the problem tractable: Either the tidal force is weak compared to the star's gravity, or the star's gravity is weak compared to the tidal force. I will describe how hydrodynamical simulations have helped to improve our understanding of tides in the non-linear regime where these two forces are comparable, and how this new information can be utilized to characterize the luminous flares produced by tidal disruptions.

Date & Time

September 20, 2012 | 11:00am – 12:00pm

Location

Bloomberg Hall, Astrophysics Library

Speakers

James Guillochon

Affiliation

University of California, Santa Cruz

Event Series

Categories