Impact of non-metricity and matter source on the geometry of anisotropic spheres

This paper delves into the impact of extended symmetric teleparallel theory on anisotropic compact stellar structures. The explicit field equations were formulated by considering a minimum model of this extended gravity. Basically, the Darmois junction conditions are used to determine the unknown co...

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Bibliographic Details
Published in:Chinese journal of physics (Taipei) 2024-11
Main Authors: Gul, M. Zeeshan, Sharif, M., Arooj, Adeeba, Dayanandan, Baiju
Format: Article
Language:English
Subjects:
Compact objects
Extended theory
Sound speed
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Summary:This paper delves into the impact of extended symmetric teleparallel theory on anisotropic compact stellar structures. The explicit field equations were formulated by considering a minimum model of this extended gravity. Basically, the Darmois junction conditions are used to determine the unknown constants of metric coefficients. We explore some significant properties of the compact stars under consideration to check their viable existence in this modified framework. The Tolman–Oppenheimer–Volkoff equation assess the equilibrium state of the compact stars. Moreover, the stability analysis is defined by using methods based on sound speed (related to how disturbances propagate in the star) and adiabatic index (related to the thermodynamic behavior of the star). We find that the proposed compact stars in the f(Q,T) gravity are physically viable and stable. •Impact of f(Q,T) theory of gravity is studied on compact stellar structures.•Explore significant properties to check the viability of compact stars.•Stability analysis is examined using sound speed and adiabatic index.•Proposed compact stars turn out to be physically viable and stable.
ISSN:0577-9073
DOI:10.1016/j.cjph.2024.11.021