We discuss a new code for the numerical simulation of astrophysical flows in the presence of magnetic fields and (neutrino) radiation. The code employs modern techniques for the reconstruction of variables and for the solution of the Riemann problem in order to solve the evolutionary equations accurately and stably. Besides tests of the code, we present results for the evolution of the hydromagnetic Kelvin-Helmholtz instability in neutron star mergers and for the magneto-rotational instability in core collapse supernovae.
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We discuss a new code for the numerical simulation of astrophysical flows in the presence of magnetic fields and (neutrino) radiation. The code employs modern techniques for the reconstruction of variables and for the solution of the Riemann problem in order to solve the evolutionary equations accurately and stably. Besides tests of the code, we present results for the evolution of the hydromagnetic Kelvin-Helmholtz instability in neutron star mergers and for the magneto-rotational instability i...
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