C+O detonations in thermonuclear supernovae: Interaction with previously burned material

Details C+O detonations in thermonuclear supernovae: Interaction with previously burned material C+O detonations in thermonuclear supernovae: Interaction with previously burned material

2006-05-11

arxiv.org/abs/astro-ph/0605293v2

Astronomy and Astrophysics

Astrophysics

6 pages, 9 figures, uses isotope.sty, accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20054094

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.

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