https://doi.org/10.1140/epjp/s13360-025-06102-9
Regular Article
Anisotropic quark stars in the modified f(Q, T) gravity: an application of the MIT bag model
Faculty of Science & Technology, University of Central Punjab, Lahore, Pakistan
Received:
8
September
2024
Accepted:
7
February
2025
Published online:
24
February
2025
In this paper, we consider spherically symmetric static space-time and anisotropic fluid to investigate the solutions of the strange quark stars in the modified f(Q, T) theory of gravity. We use Heintzmann metric components to find the solution of f(Q, T) field equations for two different models with linear and nonlinear terms, respectively. To investigate the structural formation of the quark stars, we present strange quark matter in the form of MIT bag model. We consider PSR J1614-2230 as a candidate star to specify the mass and radius of the developed quark star models and study their characteristics for different values of the involved parameters. Also, by adopting different values of the free parameters, we find values of the bag constant and use them to check the energy density and anisotropic pressure of the obtained strange star models. We also calculate the energy conditions, stability conditions and the different state parameters, such as compactness factor, matter distribution, gravitational redshift, adiabatic index and energy conditions, for both the linear and nonlinear models. We draw graphs for all the calculated parameters and provide their analysis.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
