Massive Star Evolution and Nucleosynthesis -Lower End of Fe-Core Collapse Supernova Progenitors and Remnant Neutron Star Mass Distribution-

TL;DR

This paper introduces a new stellar evolution code to study the progenitors of low-mass Fe-core collapse supernovae and the resulting neutron star mass distribution, highlighting how different assumptions affect outcomes.

Contribution

A new efficient stellar evolution code is developed and compared with previous models, focusing on supernova progenitors and neutron star mass distributions.

Findings

Different assumptions lead to varied neutron star mass distributions

The new code provides improved modeling of low-mass Fe-core supernova progenitors

Comparison with previous code validates the new approach

Abstract

In order to explore various aspects of stellar evolution, supernovae, gamma ray bursts and nucleosynthesis, we have developed a new efficient stellar evolution code. In this paper we describe this new code and compare the results with the ones calculated by the previous code. Specifically we focus on the progenitor evolution of lower end of the Fe-core collapse supernovae, and mass distribution of remnant neutron stars. We describe how different assumptions will lead different neutron star mass distribution. We also review recent works of our research group.