Physics
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..apra14002o&link_type=abstract
American Physical Society, APS April Meeting 2010, February 13-16, 2010, abstract #A14.002
Physics
Scientific paper
We present a new open-source general-relativistic (GR) code based on the formulation of Romero-Ibanez and employing radial-gauge, polar-slicing coordinates in which the 3+1 equations simplify substantially. We discretize the GRHD equations with a finite-volume scheme, employing piecewise-parabolic reconstruction of state variables at cell interfaces and approximate Riemann solvers. The GRHD part of the code is coupled to various finite-temperature microphysical equations of state and an approximate deleptonization scheme for the collapse phase and a neutrino-leakage/heating scheme for the postbounce epoch are included and described. An array of test calculations is presented. )
O'Connor Evan
Ott Christian
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