Rayleigh-Taylor driven supernova explosions: A two-dimensional numerical study

Journal Article · Sun Jun 15 04:00:00 EDT 1980 · Astrophys. J., Lett. Ed.; (United States)

OSTI ID:5071582

Kivio, M; Buchler, J R; Colgate, S A

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.

• Research Organization: Physics Department, University of Florida, Gainesville
• OSTI ID: 5071582
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 238:3; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONVECTION
ELEMENTARY PARTICLES
EQUATIONS
EQUATIONS OF STATE
ERUPTIVE VARIABLE STARS
FERMIONS
FLUID MECHANICS
GRAVITATIONAL COLLAPSE
HYDRODYNAMICS
INSTABILITY
LEPTONS
MASSLESS PARTICLES
MECHANICS
NEUTRINOS
OSCILLATION MODES
RAYLEIGH-TAYLOR INSTABILITY
SHOCK WAVES
STAR EVOLUTION
STARS
SUPERNOVAE
TWO-DIMENSIONAL CALCULATIONS
VARIABLE STARS