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arXiv · 2209.09739

Hyperonic equation of state at finite temperature for neutron stars

Hristijan Kochankovski·Angels Ramos·Laura Tolos
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Abstract

We review the composition and the equation of state of the hyperonic core of neutron stars at finite temperature within a relativistic mean-field approach. We make use of the new FSU2H* model, which is built upon the FSU2H scheme by improving on the Xi potential according to the recent analysis on the Xi atoms, and we extend it to include finite temperature corrections. The calculations are done for a wide range of densities, temperatures and charge fractions, thus exploring the different conditions that can be found in protoneutron stars, binary mergers remnants and supernovae explosions. The inclusion of hyperons has a strong effect on the composition and the equation of state at finite temperature, which consequently would lead to significant changes in the properties and evolution of hot neutron stars.

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Hristijan Kochankovski, Angels Ramos, Laura Tolos. 2022-09-20. Hyperonic equation of state at finite temperature for neutron stars. https://doi.org/10.1051/epjconf%2F202227109005

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