Finite temperature calculations for the bulk properties of strange star using a many-body approach

TL;DR

This paper models the bulk properties of hot strange stars immediately after supernova collapse using a many-body approach with a density-dependent bag constant, revealing temperature effects on maximum mass and radius.

Contribution

It introduces a finite temperature calculation for strange star properties incorporating a density-dependent bag constant, extending previous models with a novel approach.

Findings

Maximum mass decreases with increasing temperature.

Density-dependent bag constant yields higher maximum mass and radius.

Comparison shows differences between fixed and density-dependent bag constant results.

Abstract

We have considered a hot strange star matter, just after the collapse of a supernova, as a composition of strange, up and down quarks to calculate the bulk properties of this system at finite temperature with the density dependent bag constant. To parameterize the density dependent bag constant, we use our results for the lowest order constrained variational (LOCV) calculations of asymmetric nuclear matter. Our calculations for the structure properties of the strange star at different temperatures indicate that its maximum mass decreases by increasing the temperature. We have also compared our results with those of a fixed value of the bag constant. It can be seen that the density dependent bag constant leads to higher values of the maximum mass and radius for the strange star.