Nucleosynthesis as a result of multiple delayed detonations in Type Ia Supernovae
arXiv:astro-ph/0210339 · doi:10.1016/S0375-9474(03)00847-9
Abstract
The explosion of a white dwarf of mass 1.36 M 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.
3 pages, 2 figures. Proceedings "Nuclei in the Cosmos VII" 2002. To appear in Nucl. Phys. A