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

[daisymae@mit.edu]

 		   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 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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