Nucleosynthesis as a result of multiple delayed detonations in Type Ia Supernovae

Details Nucleosynthesis as a result of multiple delayed detonations in Type Ia Supernovae Nucleosynthesis as a result of multiple delayed detonations in Type Ia Supernovae

2002-10-15

arxiv.org/abs/astro-ph/0210339v2

Nucl.Phys. A718 (2003) 563-565

Astronomy and Astrophysics

Astrophysics

3 pages, 2 figures. Proceedings "Nuclei in the Cosmos VII" 2002. To appear in Nucl. Phys. A

Scientific paper

10.1016/S0375-9474(03)00847-9

The explosion of a white dwarf of mass 1.36 M$_\odot$ has been simulated in three dimensions with the aid of a SPH code. The explosion follows the delayed detonation paradigma. In this case the deflagration-detonation transition is induced by the large corrugation of the flame front resulting from Rayleigh-Taylor instability and turbulence. The nucleosynthetic yields have been calculated, showing that some neutronized isotopes such as 54^Fe or 58^Ni are not overproduced with respect to the solar system ratios. The distribution of intermediate-mass elements is also compatible with the spectra of normal SNIa. The excepcion is, however, the abundance of carbon and oxygen, which are overproduced.

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