[Crib-list] TODAY: SPEAKER: Ryan McKinnon (MIT) | CRIBB Seminar | Friday, March 3, 2017 | TIME: 12:00 PM - 1:00 PM | Building 32, Room 155 (fwd)

[daisymae@mit.edu]

 	T O D A Y . . .


 		   COMPUTATIONAL RESEARCH in BOSTON and BEYOND SEMINAR


DATE:		Friday, MARCH 3, 2017
TIME:		12:00 PM  1:00 PM
LOCATION:	Building 32, Room 155  (STATA)
 		(32 Vassar Street, Cambridge)

     Pizza and beverages will be provided at 11:45 AM outside Room 32-155.



TITLE:		Grain Dynamics in Astrophysical Simulations


SPEAKER:	RYAN McKINNON  (Massachusetts Institute of Technology)


ABSTRACT:

Galaxies in the universe form and grow over time in a complicated nonlinear 
fashion.  Recent advances in supercomputing ability make it possible to 
numerically model the essential physics and evolve a mock universe from shortly 
after the Big Bang to the present day, producing a fairly realistic population 
of galaxies.  In this talk, I will overview the key topics in physics that 
govern galaxy formation and display visualizations from state-of-the-art 
astrophysical simulations.  The spectroscopic properties of real galaxies are 
heavily influenced by the presence of dust grains, small solid molecules of 
various sizes that can absorb and reradiate stellar light in the gaseous 
interstellar medium.  I will talk about the challenge of modeling small-scale 
grain physics, focusing on the hydrodynamical drag force coupling grains and 
gas and the time-evolving size distribution of dust grains.  To validate the 
numerical implementation of grain physics in a modern astrophysical code, I 
will show results from a variety of test problems in hydrodynamics and grain 
size dynamics.

===================================================================

Massachusetts Institute of Technology
Cambridge, MA


For information about the Computational Research in Boston and Beyond Seminar, 
please visit...

 			http://math.mit.edu/crib/





===
Shirley A. Entzminger
Administrative Assistant II
Department of Mathematics
Massachusetts Institute of Technology
77 Massachusetts Avenue
Building 2, Room 350A
Cambridge, MA 02139
PHONE:	(617) 253-4347
FAX:	(617) 253-4358
E-mail:	daisymae at math.mit.edu

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