Exploring the Bardeen Compact Stars in Modified Symmetric Teleparallel Gravity

This research investigates the presence of a charged compact star within the framework of f(Q) gravity, where Q represents the non-metricity scalar, utilizing the Finch-Skea metric. The study adopts a spherically symmetric spacetime configuration, seamlessly matched to the Bardeen model for the exterior geometry through matching conditions. We examine the physical properties of the system, including energy density, radial/tangential pressure and the anisotropic parameter. The energy conditions are evaluated to assess the feasibility of the proposed model. The analysis incorporates the parameters of the radial/tangential equations of state and evaluates equilibrium using the modified Tolman-Oppenheimer-Volkoff equation. Key features of charged compact stars such as the mass-radius relationship, compactness and surface redshift are also explored. Finally, we discuss the stability through the causality condition and the adiabatic index. It is found that the stellar structures developed under the Bardeen model framework are found to be more viable and stable. © 2025 Elsevier B.V., All rights reserved.