# Anisotropic Quark Stars with an Interacting Quark Equation of State

## TL;DR

This paper investigates how the interaction parameters in the quark matter equation of state influence the structure, stability, and observable properties of anisotropic quark stars, highlighting the effects of quantum chromodynamics corrections.

## Contribution

It introduces a detailed analysis of anisotropic quark star models incorporating QCD perturbative corrections and explores their impact on star properties and stability.

## Key findings

- Higher interaction parameters lead to increased star masses.
- Weak interactions produce results similar to the MIT bag model.
- Quantum corrections significantly affect mass-radius relations.

## Abstract

A deep exploration of the parameter space that relates the interacting equation of state with the bag constant B, and the interaction parameter a, is fundamental for the construction of diverse models of quark stars. In particular, the anisotropy of quark stars with a well-motivated quantum chromodynamics (QCD) equation of state is presented here. The contribution of the fourth order corrections parameter ($\mathrm{a}$) of the QCD perturbation on the radial and tangential pressure generate significant effects on the mass-radius relation and the stability of the quark star. An adequate set of solutions for several values of the bag factor and the interaction parameter are used in order to calculate the relation between the mass, radius, density, compactness, and consequently the maximum masses and the stability. Therefore, while the more interactive quark solution leads to higher masses, the weak interaction among quarks give solutions similar to the widely known MIT bag model.