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HK: Fachverband Physik der Hadronen und Kerne
HK 61: Nukleare Astrophysik
HK 61.5: Vortrag
Freitag, 21. März 2014, 15:15–15:30, HZ 4
Nucleosynthesis of Molybdenum in neutrino-driven winds — •Julia Bliss1 and Almudena Arcones1,2 — 1Institut für Kernphysik, TU Darmstadt — 2GSI Helmholtzzentrum für Schwerionenforschung GmbH
Neutrino-driven winds that follow core-collapse supernovae are an exciting astrophysical site for the production of heavy elements. For a long time it has been thought that the neutrino-driven winds could be the host for the r-process, but recent hydrodynamical simulations show that the conditions are not sufficient neutron rich. Nonetheless, lighter heavy elements between Sr and Ag can be produced in neutrino-driven winds. Among these elements, Mo has raised attention since various astrophysical scenarios failed to reproduce the solar abundance ratio of Y(92Mo)/Y(94Mo). Moreover, available data of SiC X-grains present different isotopic ratios than in the solar system. We have done a systematic nucleosynthesis study to identify the necessary conditions to reproduce the observed Mo isotopic ratios based on neutrino-driven winds.