Influence of geometry in the delayed detonation model of SNIa

Details Influence of geometry in the delayed detonation model of SNIa Influence of geometry in the delayed detonation model of SNIa

2002-11-12

arxiv.org/abs/astro-ph/0211242v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 Figures. To appear in Proc. of the ESO/MPA/MPO Workshop: "From Twilight to Highlight- The physics of Supernovae"

Scientific paper

10.1007/10828549_21

We present several hydrodynamical simulations of thermonuclear supernovae dealing with multiple delayed detonations. The calculations were carried out in three dimensions, making possible to study the influence of geometry of the flame front in two aspects. First, the evolution of its fractal dimension during the deflagration phase has been followed until a critical value is reached such that the deflagration may turn into a detonation. Second, as the resulting detonation could probably be scattered through the flame, the effect of its initial location on the detonation propagation, final energetics and nucleosynthesis has been explored.

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