Isotropic fluid structures and role of non-metricity on their dynamics governed by an electric charge: A theoretical study
Tayyab Naseer, M. Sharif, M. Waqas, J. Andrade, Ahmed Emara
TL;DR
This paper studies how electric charge and non-metricity affect the dynamics of compact stars in a modified gravity framework.
Contribution
The paper presents two new solutions for compact stellar models in f(Q) gravity with electric charge.
Findings
Novel solutions for compact stars are constructed using Kohler-Chao-Tikekar and Tolman IV spacetimes.
The results align with physical existence criteria for the star candidate LMC X-4.
The study highlights the role of non-metricity in influencing fluid dynamics of compact stars.
Abstract
This research explores the dynamics of compact stellar objects characterized by the Kohler-Chao-Tikekar and Tolman IV spacetimes under the effects of an electric charge within the framework of f(Q) gravity, where Q indicates the non-metricity. We start our analysis with the assumption of a static spherical line element and formulate the field equations corresponding to an isotropic interior fluid setup. We then construct two novel solutions under the two above-mentioned metrics which involve multiple unknown constants. These constants are calculated using junction conditions at the boundary, where we match our interior solutions with the exterior Reissner-Nordström line element. Afterwards, we analyze specific conditions that must be met to ensure the feasibility of compact models in real-world applications. The graphical analysis is performed under a particular star candidate, namely…
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Taxonomy
TopicsAstrophysics and Star Formation Studies · Cosmology and Gravitation Theories · Astrophysical Phenomena and Observations