Gravastar model in Krori-Barua metric under $f(Q)$ gravity

TL;DR

This paper investigates the properties and stability of gravastars within $f( ext{Q})$ gravity using the Krori-Barua metric, analyzing junction conditions and physical characteristics across different black hole models.

Contribution

It introduces a novel analysis of gravastars in $f( ext{Q})$ gravity with Krori-Barua metric and examines their physical properties and stability using junction conditions.

Findings

Derived field equations for gravastars in $f( ext{Q})$ gravity.

Analyzed stability and physical properties of gravastars with different black hole metrics.

Abstract

In this paper, we explore the characteristics of a gravastar in $f(\mathcal{Q})$ gravity, which is upheld by Krori-Barua (KB) metric. We have used Krori-Barua (KB) metric for the interior and shell regions of the gravastar. We deduced our field equations by using Krori-Barua metric. In the outside regions of the gravastar, we have taken two regular black hole metrics. Additionally, we have applied the Israel junction condition to calculate the potential difference across the thin shell concerning different types of regular black holes, such as Bardeen and Hayward. We have also discussed the physical properties like proper length, entropy, energy, EoS and stability.