Yale Astronomy / Boris Garfinkel Lecture - Alice Quillen

Event time: 
Saturday, April 27, 2019 - 2:00pm
Alice Quillen
Speaker Institution: 
University of Rochester
Talk Title: 
Title: Cracking Moons, Splashing Rubble Asteroids and Tipping Satellites: Dynamics of Soft Bodies in the Solar System
Event description: 

Space missions to the outer solar system and to Earth orbit crossing asteroids have recently sent back surprising images of distant worlds.

Contrary to expectations,  Pluto and Charon’s satellites are rapidly rotating, and like Uranus, their spins are tilted into their orbit plane.  Wide canyons traverse Charon and Dione. The surfaces of asteroids Bennu and Ryugu are nearly craterless, coarse boulder fields.  Our ignorance of the internal composition of asteroids and moons hampers the design of sample return missions, the development of mining methods and Earth impact mitigation strategies, and our study of their formation and evolution.  With laboratory experiments on heterogeneous granular media and computational techniques developed in graphics computing to simulate soft body deformation and spin, I will recount efforts to better understand the internal material response and evolution of these diverse worlds.

Burke Auditorium at Kroon Hall See map
195 Prospect Street
New Haven, CT 06511
Open to: 
General Public