Nucleosynthesis in magneto-rotational supernovae

Abstract We present the nucleosynthesis of magneto-rotational supernovae (MR-SNe) including neutrino-driven and magneto-rotational-driven ejecta based, for first time, on two-dimensional simulations with accurate neutrino transport. The models analysed here have different rotation magnetic fields, allowing us to explore impact these two key ingredients. transport is critical analyse slightly neutron rich proton that are similar the, also neutrino-driven, in standard supernovae. In model strong field, r-process produces heavy elements up third peak (A ∼ 195), agreement previous works. This presents a jet-like explosion proton-rich jets surrounded by material where occurs. estimated lower limit 56Ni 2.5 × 10−2M⊙, which still well below expected hypernova value. Longer accretion disk evolution required get final prediction. addition, we found late weak field lately ejected matter second peak. Even if cannot yet provide conclusions nucleosynthesis, our results agree observations old stars radioactive isotopes supernova remnants. makes MR-SNe good additional scenario star mergers synthesis brings closer understand their origin role early galaxy nucleosynthesis.