Late-time neutrino heating and energetics of stalled shocks in Type II supernovae

Details Late-time neutrino heating and energetics of stalled shocks in Type II supernovae Late-time neutrino heating and energetics of stalled shocks in Type II supernovae

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...319..143r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 319, Aug. 1, 1987, p. 143-148.

Astronomy and Astrophysics

Astrophysics

3

Gravitational Collapse, Neutrinos, Plasma Heating, Shock Waves, Supernovae, Stellar Cores, Time Dependence

Scientific paper

The hydrodynamic shock formed outside the homologously collapsing core of a Type II supernova progenitor seems to stall for certain mass ranges in many numerical calculations. A way to revive the stalled shock through late-time neutrino heating was proposed by Bethe and Wilson (1985). Here semianalytic models are used to calculate the extent of neutrino heating self-consistently with the changes in nuclear equilibrium behind the shockfront. Heating rate seems to be extremely rapid during a particular short phase of shock recession and whether the shock is revived sufficiently or not depends critically on the total neutrino luminosity and to a lesser extent on the neutrino-sphere radius.

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