Lowest Order Constrained Variational Calculation of Structure Properties of Protoneutron Star

TL;DR

This paper uses the lowest order constrained variational method to analyze the structure of protoneutron stars, revealing how entropy and temperature influence their mass, radius, and temperature distribution.

Contribution

It applies a variational approach to calculate key properties of protoneutron stars, providing insights into their structural behavior under different thermal conditions.

Findings

Mass and radius decrease with lower entropy and temperature

Temperature remains nearly constant in the core and drops near the crust

Provides detailed equations of state for protoneutron stars

Abstract

We calculate the structure properties of protoneutron star such as equation of state, maximum mass, radius and temperature profile using the lowest order constrained variational method. We show that the mass and radius of protoneutron star decrease by decreasing both entropy and temperature. For the protoneutron star, it is shown that the temperature is nearly constant in the core and drops rapidly near the crust.