State-of-the-Art Multi-Dimensional Core-Collapse and Supernova Simulations
As part of the Supernova Science Center (SNSC), we have performed the first 2D multi-group calculations of core collapse, bounce, and explosion (at times) that incorporate multi-D neutrino transfer. In addition, we have investigated the possible role of rotation of the core (using the code's "2.5"-D capability), calculated the "final" rotational profiles of protoneutron stars, and calculated gravitational radiation signatures. Moreover, we have determined the growth and role of "l=1" anisotropies in the post-bounce configuration using realistic equations of state, multi-neutrino transport, realistic initial models, and state-of-the-art neutrino opacities. The mechanism of core-collapse supernovae, the origin of pulsar kick velocities, and the energy-dependent anisotropy of the neutrino spectra and fluxes are all addressed. Finally, new simulation capabilities that we are developing are discussed.
Support for this work was provided by the Scientific Discovery through Advanced Computing (SciDAC) program of the DOE, grant number DE-FC02-01ER41184.