From Binary Systems and Stellar Core Collapse To Gamma-Ray Bursts

Peter Diener, Louisiana State University

Usage Details

Steven R Brandt, Mark Scheel, Erik Schnetter, Peter Diener, Jian Tao, Frank Loeffler, Christian Ott, Jing Li, Bela Szilagyi, Roland Haas, Philipp Moesta, Ernazar Abdikamalov, Kevin Barkett, Daniel Hemberger, Sherwood Richers, Jonas Lippuner, Matthew Giesler, Luke Roberts, Jonathan Blackman, Sarah Gossan

Understanding the physics of gamma ray bursts is one of the most important current questions in astrophysics because of their association with the most distant known objects in the Universe. Modeling these objects requires a multi-physics approach that operates on physical length scales from a few meters to millions of kilometers and on time scales from a few tenths of a microsecond to hundreds of seconds. Of central importance in any comprehensive GRB model is dynamical general relativity in combination with magnetohydrodynamics, radiation transport of neutrinos and photons, as well as neutrino and nuclear microphysics. This multi-physics—hence multi-algorithm—requirement puts the GRB modeling problem at the interface of disciplines and requires synergistic action of researchers from multiple fields of physics, applied mathematics, and computer science. With this project, the team will optimize numerical codes for the petascale using an approach centered around the Cactus software framework.

http://www.phys.lsu.edu/newwebsite/people/diener.html