Physics
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jphys..41c.155l&link_type=abstract
(Centre National de la Recherche Scientifique, Colloque International sur la Physique de la Matiere Dense, Paris, France, Sept.
Physics
Convective Flow, Gravitational Collapse, Interface Stability, Stellar Evolution, Supernovae, Baryons, Compton Effect, Energy Dissipation, Flow Stability, Neutrinos, Stellar Models
Scientific paper
Strong neutronization above the neutrinosphere produces a convectively unstable gradient of the electron to baryon ratio. As a result, the trapped neutrinos are released on a short timescale, thus providing the necessary boost to cause a violent explosion. The definition of the growth of this instability requires a full two-dimensional calculation, which is in progress. A one-dimensional hydrodynamic parameterization of the overturn shows that explosion results whenever mixing occurs significantly beyond the neutrinosphere. The main cause for explosion is energy deposition in the mantle by Comptonization as well as by absorption and re-emission. The Rayleigh-Taylor overturn of the core could thus resolve the present question of only marginally exploding supernova models.
Buchler Jean-Robert
Livio Mario
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