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BEGIN:VEVENT
DTSTAMP:20161026T173000Z
UID:1474660266134@events.msu.edu
CATEGORIES:Conferences / Seminars / Lectures
DTSTART:20161026T173000Z
DTEND:20161027T035900Z
SUMMARY:Astronomy & Astrophysics Seminar
DESCRIPTION:
 Speaker: Sherwood Richers\n
 Speaker's Institution: 
 Caltech\n
 Seminar Title: Monte Carlo Neutrino 
 Transport in Supernovae and GRBs\n
 Neutrino 
 interactions dominate the energetics of core-collapse 
 supernovae (CCSNe) and\n
 determine 
 the composition of the matter ejected from CCSNe 
 and gamma-ray bursts (GRBs).\n
 Three dimensional 
 (3D) CCSN and neutron star merger simulations 
 are rapidly improving, but\n
 still suffer 
 from approximate treatments of neutrino transport 
 that cripple their reliability and\n
 realism. I use my relativistic time-independent 
 Monte Carlo neutrino transport code SEDONU 
 to\n
 evaluate the effectiveness of leakage, moment, 
 and discrete ordinate schemes in both 
 of these\n
 scenarios, and calculate neutrino pair 
 annihilation rates to try to explain the 
 jet launching\n
 mechanism of GRBs. I also developed 
 a relativistic extension to the Random 
 Walk\n
 approximation that greatly accelerates 
 convergence in diffusive regimes, making full-domain\n
 simulations 
 possible. All of these improvements 
 will culminate in a coupled Monte 
 Carlo - two\n
 moment transport scheme efficient 
 enough to incorporate into the to-date most 
 accurate global\n
 three-dimensional GRMHD simulations.\n\n
 Price: free\n
 Sponsor: Biomedical and Physical Sciences Building\n
 Sponsor's Homepage: https://www.pa.msu.edu/\n
 Contact name: Shawna Prater\n
 Contact email: prater@pa.msu.edu\n
 for more info visit the web at:\n 
 https://www.pa.msu.edu/seminars/ast_seminars/current\n
LOCATION: Room 1400 Biomedical and Physical Sciences Building
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