PUSHing Core-collapse Supernovae to Explosions in Spherical Symmetry. V. Equation of State Dependency of Explosion Properties, Nucleosynthesis Yields, and Compact Remnants

In this fifth paper of the series, we use the parameterized, spherically symmetric explosion method PUSH to investigate the impact of eight different nuclear equations of state (EOS). We present and discuss the explosion properties and the detailed nucleosynthesis yields, and predict the remnant (neutron star or black hole) for all our simulations. For this, we perform two sets of simulations. First, a complete study of nonrotating stars from 11 to 40 M (circle dot) at three different metallicities using the SFHo EOS; and, second, a suite of simulations for four progenitors (16 M (circle dot) at three metallicities and 25 M (circle dot) at solar metallicity) for eight different nuclear EOS. We compare our predicted explosion energies and yields to observed supernovae and to the metal-poor star HD 84937. We find EOS-dependent differences in the explosion properties and the nucleosynthesis yields. However, when comparing to observations, these differences are not large enough to rule out any EOS considered in this work.

Automated summary

In this paper, the authors investigated the impact of eight different nuclear equations of state using the PUSH method, and predicted the explosion properties and nucleosynthesis yields. The results show that the differences between the equations of state are not large enough to rule out any of them.