Nucleosynthesis in early supernova winds III: No significant contribution from neutron-rich pockets

TL;DR

This study investigates the nucleosynthesis contribution of neutron-rich pockets in early supernova winds and finds they are not significant compared to the overall ejecta.

Contribution

It provides a detailed calculation showing neutron-rich pockets in supernova winds have minimal impact on total nucleosynthesis.

Findings

Neutron-rich pockets contribute insignificantly to nucleosynthesis.

Early neutrino winds are predominantly proton-rich.

Neutron-rich pockets are present but have limited nucleosynthesis impact.

Abstract

Recent nucleosynthesis calculations of Type II supernovae using advanced neutrino transport determine that the early neutrino winds are proton-rich. However, a fraction of the ejecta emitted at the same time is composed of neutron-rich pockets. In this paper we calculate the nucleosynthesis contribution from the neutron-rich pockets in the hot convective bubbles of a core-collapse supernova and show that they do not contribute significantly to the total nucleosynthesis.