Three-dimensional simulations of convection in supernova cores

Details Three-dimensional simulations of convection in supernova cores Three-dimensional simulations of convection in supernova cores

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasj...45l..53s&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 45, no. 4, p. L53-L57

Astronomy and Astrophysics

Astronomy

18

Computerized Simulation, Shock Wave Propagation, Stellar Convection, Supernovae, Three Dimensional Models, Mixing Layers (Fluids), Nuclear Fusion, Perturbation Theory, Three Dimensional Motion

Scientific paper

We have carried out three-dimensional simulations of convection above the proto neutron star in supernova explosions; this convection is driven by a negative entropy gradient due to heating of shocked matter by high-energy neutrinos radiated from the proto neutron star. We compared the three-dimensional calculations with axisymmetric or spherical calculations by changing the initial perturbations. We found that the explosion energy is unchanged by convective motion, but that convection can explain the seed of matter mixing. We also found that three-dimensional motion has an advantage for the ejection of r-process nuclei synthesized in hot bubbles.

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