With the effective chiral model, the finite temperature properties of nuclear matter have been studied at different temperatures. For symmetric nuclear matter, I particularly focused on the possibility of liquid–gas phase transition at low temperature and density. The critical temperature obtained in this context, is consistent with the experimental and empirical findings. The free energy and entropy variation are also studied for different values of temperature. A few asymmetric nuclear matter properties like the equation of state and the speed of sound with respect to temperature are also examined. The work is also extended to obtain the equation of state β stable nuclear matter at finite temperature. For the neutrino free case, the various static proto-neutron star properties are computed for a wide range of temperature, relevant to proto-neutron stars. For all the values of temperature, the obtained estimates of maximum gravitational mass are found to be in good agreement with the observational constraints specified from massive pulsars like PSR J0348 + 0432 and PSR J0740 + 6620. The results of surface redshift for all the temperature also satisfy the maximum surface redshift constraints from EXO 07482-676, 1E 1207.4-5209 and RX J0720.4-3125.

利用有效的手性模型，已经研究了在不同温度下核物质的有限温度特性。对于对称核物质，我特别关注低温和高密度下液相-气相转变的可能性。在这种情况下获得的临界温度与实验和经验结果一致。还针对不同的温度值研究了自由能和熵的变化。还检查了一些非对称核物质特性，例如状态方程和相对于温度的声速。这项工作还延伸，而获得的状态方程β在有限温度下稳定的核物质。对于无中微子的情况，在与原始中子星有关的宽温度范围内，计算了各种静态的原始中子星特性。对于所有温度值，发现获得的最大引力质量估计值与大型脉冲星（如PSR J0348 + 0432和PSR J0740 + 6620）指定的观测约束高度吻合。在所有温度下，表面红移的结果也满足来自EXO 07482-676、1E 1207.4-5209和RX J0720.4-3125的最大表面红移约束。