Abstract
The nuclear equation of state (EOS) is an important component in the evolution of core-collapse supernovae. In this paper we make a survey of various EOSs in the literature and analyze their effect on spherical core-collapse models in which the effects of three-dimensional turbulence is modeled by a general relativistic formulation of Supernova Turbulence In Reduced-dimensionality (STIR). We show that the viability of the explosion is quite EOS dependent and that it best correlates with the early-time interior entropy density of the proto-neutron star. We check that this result is not progenitor dependent, although the lowest-mass progenitors show different explosion properties, due to the different pre-collapse nuclear composition. Larger central entropies also induce more vigorous proto-neutron star convection in our one-dimensional turbulence model, as well as a wider convective layer.
| Original language | English |
|---|---|
| Article number | 147 |
| Journal | Astrophysical Journal |
| Volume | 926 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 1 2022 |
| Externally published | Yes |
Funding
The authors would like to thank Sean Couch and Mackenzie Warren for fruitful discussions, Andre da Silva Schneider for his help in calculating the symmetry energy of the EOSs adopted, and Erika Holmbeck for helping us plot the NICER constraints. Work at the University of Notre Dame was supported by the U.S. Department of Energy under Nuclear Theory grant DE-FG02-95-ER40934. E.O.C. would like to acknowledge Vetenskapsrådet (the Swedish Research Council) for supporting this work under award Nos. 2018-04575 and 2020-00452.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | DE-FG02-95-ER40934 |
| Vetenskapsrådet | 2020-00452, 2018-04575 |