%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

W. G. Pritchard Lab Seminar: 11:15 AM - 12:15 PM, 106 McAllister Bldg

	             **Monday December 3, 2007**
	
Planet formation dynamics: growth, migration, and the dozy-doe

Steinn Sigurdsson
      
Department of Astronomy & Astrophysics
Penn State University, USA
 

Abstract:

The dominant mode of planet formation is thought to occur through bottom-
up aggregation of fractal dust grains, leading to oligarchic growth and 
runaway accretion.  During accretion, torque imbalances can drive rapid 
radial migration of the most massive protoplanet. I discuss the prospects 
for survival and reform of terrestrial planets, and the implications for 
finding habitable planets in the local universe.
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%