Stellar collapse - Adiabatic hydrodynamics and shock wave propagation

Details Stellar collapse - Adiabatic hydrodynamics and shock wave propagation Stellar collapse - Adiabatic hydrodynamics and shock wave propagation

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....81..288m&link_type=abstract

Astronomy and Astrophysics, vol. 81, no. 3, Jan. 1980, p. 288-292.

Astronomy and Astrophysics

Astrophysics

21

Adiabatic Equations, Gravitational Collapse, Hydrodynamics, Shock Wave Propagation, Stellar Evolution, Supernovae, Energy Dissipation, Mathematical Models, Shock Fronts, Stellar Mass Ejection

Scientific paper

The consistency of the shock wave description in an adiabatic approximation of supernova explosions (Van Riper, 1978) is examined. It is shown that shock propagation cannot be simulated correctly and that whether or not mass is ejected from the rebounding core strongly depends on the treatment of energy dissipation in the shock. It appears therefore that the question of whether purely hydrodynamic effects can cause supernova explosions cannot be answered with the help of adiabatic models. This conclusion remains valid for two-dimensional (i.e. axisymmetric) simulations of the collapse of rotating configurations. On the other hand, the experiments in two dimensions show some new interesting effects which do not depend on the treatment of the shock front.

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