A ug 2 01 4 Radiogenic p - isotopes from SN Ia , nuclear physics uncertainties and Galactic chemical evolution compared with values in primitive meteorites

The nucleosynthesis of proton-rich isotopes is calculated for multi-dimensional Chandrasekhar-mass models of Type Ia supernovae with different metallicities. The predicted abundances of the short-lived radioactive isotopes Nb, Tc, and Sm are given in this framework. The abundance seeds are obtained by calculating s-process nucleosynthesis in the material accreted onto a carbon-oxygen white dwarf from a binary companion. A fine grid of s-seeds at different metallicities and C-pocket efficiencies is considered. A galactic chemical evolution model is used to predict the contribution of SN Ia to the solar system p-nuclei composition measured in meteorites. Nuclear physics uncertainties are critical to determine the role of SNe Ia in the production of Nb and Sm. We find that, if standard Chandrasekhar-mass SNe Ia are at least 50% of all SNIa, they are strong candidates for reproducing the radiogenic p-process signature observed in meteorites. Subject headings: hydrodynamic, supernovae, nucleosynthesis, p-process, radiogenic, meteorites, chemical evolution