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S. W. Bruenn (Florida Atlantic University)
A new supernova code coupling PPMLR (Piece-wise Parabolic Method Lagrangian with Remap) hydrodynamics to MGFLD (Multi-Group, Flux-Limited Diffusion) along radial rays has been constructed for modeling core collapse supernovae in two and three spatial dimensions. A variety of neutrino opacities are incorporated. A moving radial grid option allows asymmetries to be tracked from the initial collapse. The stellar material can comprise a combination of matter in NSE (Nuclear Statistical Equilibrium) and a multi-component fluid with abundances evolved by a nuclear reaction network. Simulations of the core collapse and subsequent evolution of a 15 solar mass progenitor are described for the case of a spherically symmetric collapse and the case of an asymmetric collapse.
This work was performed under the auspices of the TeraScale Supernova Initiative, funded by SciDAC grants from the DOE Office of Science High-Energy, Nuclear, and Advanced Scientific Computing Research Programs.
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.