Exact and Quasi-exact Models of Strange Stars

TL;DR

This paper develops and compares various models of strange stars, which are hypothetical self-bound quark matter objects, to identify the most efficient descriptions using simple parametrizations.

Contribution

It introduces and evaluates exact, quasi-exact, and numerical models of strange stars, providing a straightforward parametrization based on central density.

Findings

Different models show explicit differences in properties.

A simple parametrization effectively describes strange stars.

Comparison highlights the most economical modeling approach.

Abstract

We construct and compare a variety of simple models for strange stars, namely, hypothetical self-bound objects made of a cold stable version of the quark-gluon plasma. Exact, quasi-exact and numerical models are examined to find the most economical description for these objects. A simple and successful parametrization of them is given in terms of the central density, and many differences among the models are explicitly shown and discussed.