The University of Arizona

Irradiation of Ices in the Outer Solar Nebula

Astrobiology Lecture Series:
Fred Ciesla, University of Chicago

Friday, May 17, 2013
Steward Observatory, Room 505, 12:30-1:30pm

Abstract: Turbulence in the outer solar nebula would have constantly jostled ice mantled grains, leading to random motions within the protoplanetary disk.  By applying new numerical techniques, we can track the conditions that these grains would have been exposed to on their journeys and use experimental studies to determine the chemical evolution that would occur.  I will discuss the conditions that these grains would have seen in the solar nebula and what the possible products that would result from their motions, including the potential for organic production and the trapping of volatiles in those ices.