C+O detonations in thermonuclear supernovae: Interaction with previously burned material
arXiv:astro-ph/0605293 · doi:10.1051/0004-6361:20054094
Abstract
In the context of explosion models for Type Ia Supernovae, we present one- and two-dimensional simulations of fully resolved detonation fronts in degenerate C+O White Dwarf matter including clumps of previously burned material. The ability of detonations to survive the passage through sheets of nuclear ashes is tested as a function of the width and composition of the ash region. We show that detonation fronts are quenched by microscopically thin obstacles with little sensitivity to the exact ash composition. Front-tracking models for detonations in macroscopic explosion simulations need to include this effect in order to predict the amount of unburned material in delayed detonation scenarios.
arXiv comment6 pages, 9 figures, uses isotope.sty, accepted for publication in A&A
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- Off-center explosions of Chandrasekhar-mass white dwarfs: an explanation of super-bright type Ia supernovae?
- A new hydrodynamics code for Type Ia Supernovae
- A Three-Dimensional Picture of the Delayed-Detonation Model of Type Ia Supernovae
- Understanding nebular spectra of Type Ia supernovae
- Combustion in thermonuclear supernova explosions
- On the applicability of the level set method beyond the flamelet regime in thermonuclear supernova simulations