标题： 有限温度下含有超子的状态方程 显示英文标题

标题： Finite-temperature equation of state with hyperons

摘要： 我们提出了一个新的有限温度FSU2H$^*$方程状态模型，该模型涵盖了原初中子星、中子星合并和超新星条件下广泛的温度和轻子分数。当考虑超子的自由度时，温度对热力学可观测量和中子星核心组成的影响更强。我们特别关注了在存在超子的情况下热指数随温度和密度的变化，并得出结论，使用常数$\Gamma$律无法再现真实的热效应。 显示英文摘要

摘要： We present the novel finite-temperature FSU2H$^*$ equation-of-state model that covers a wide range of temperatures and lepton fractions for the conditions in proto-neutron stars, neutron star mergers and supernovae. The temperature effects on the thermodynamical observables and the composition of the neutron star core are stronger when the hyperonic degrees of freedom are considered. We pay a special attention to the temperature and density dependence of the thermal index in the presence of hyperons and conclude that the true thermal effects cannot be reproduced with the use of a constant $\Gamma$ law.