Pasta phases in core-collapse supernova matter

8th International Workshop on Hadron Physics

Pais, Helena^1 ; Chiacchiera, Silvia^1 ; Providência, Constança^1

CFisUC, Department of Physics, University of Coimbra, Coimbra

3004-516, Portugal^1

关键词: Coexisting phasis;    Compressible liquid;    Core collapse supernovae;    Finite temperatures;    Hartree-Fock calculations;    Particle number density;    Proton fraction;    Relativistic mean fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/706/4/042007/pdf
DOI  :  10.1088/1742-6596/706/4/042007

来源: IOP

【 摘 要 】

The pasta phase in core-collapse supernova matter (finite temperatures and fixed proton fractions) is studied within relativistic mean field models. Three different calculations are used for comparison, the Thomas-Fermi (TF), the Coexisting Phases (CP) and the Compressible Liquid Drop (CLD) approximations. The effects of including light clusters in nuclear matter and the densities at which the transitions between pasta configurations and to uniform matter occur are also investigated. The free energy and pressure, in the space of particle number densities and temperatures expected to cover the pasta region, are calculated. Finally, a comparison with a finite temperature Skyrme-Hartree-Fock calculation is drawn.