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Title Rayleigh-Taylor driven supernova explosions: A two-dimensional numerical study
Creator/Author Kivio, M. ; Buchler, J.R. ; Colgate, S.A.
Publication Date1980 Jun 15
OSTI IdentifierOSTI ID: 5071582
Other Number(s)CODEN: AJLEA
Resource TypeJournal Article
Resource RelationAstrophys. J., Lett. Ed. ; Vol/Issue: 238:3
Research OrgPhysics Department, University of Florida, Gainesville
Subject640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources; ;SUPERNOVAE-- GRAVITATIONAL COLLAPSE;SUPERNOVAE-- RAYLEIGH-TAYLOR INSTABILITY;SUPERNOVAE-- STAR EVOLUTION; CONVECTION;EQUATIONS OF STATE;HYDRODYNAMICS;NEUTRINOS;OSCILLATION MODES;SHOCK WAVES;TWO-DIMENSIONAL CALCULATIONS
Related SubjectELEMENTARY PARTICLES;EQUATIONS;ERUPTIVE VARIABLE STARS;FERMIONS;FLUID MECHANICS;INSTABILITY;LEPTONS;MASSLESS PARTICLES;MECHANICS;STARS;VARIABLE STARS
Description/Abstract A two-dimensional numerical hydrodynamic study shows that a Rayleigh-Taylor unstable gradient, which can develop after the bounce of a collapsing stellar core, gives rise to a dramatic, large-scale l=2 overturn of the whole core. the unstable pressure gradient in these calculations is artificially weak because the equation of state used causes an early bounce at low density.^A more dramatic overturn with greater kinetic and neutrino energy release is to be expected with recent equations of state, given sufficient time to reduce diffusively and convectively any transient shock-produced entropy-stabilizing gradients.
Country of PublicationUnited States
LanguageEnglish
FormatPages: L139-L143
System Entry Date2001 May 13

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