Role of F(Q,T) gravity with class one space-time in constructing new spherically symmetric stellar solutions
Maurya S.K. Kumar J. Chaudhary S. Errehymy A. Donmez O. Myrzakulov K.
January 2025Elsevier B.V.
Nuclear Physics B
2025#1010
This paper aims to investigate the possibility of generating exact solutions for appropriate anisotropic spherically symmetric systems in F(Q,T) gravity where Q and T are non-metricity and the trace of the energy-momentum tensor respectively. These solutions involve embedding a spherically symmetric static metric into a five-dimensional pseudo-Euclidean space. To solve Einsteins field equations and ensure that the solution is free of center singularities, a physically plausible selection of the metric coefficient grr is used. With the help of the Karmarkar condition, we compute the gtt component of the metric tensor using the metric coefficient grr. At the boundary of the compact star, we match interior spacetime with the exterior spacetime to find the values of unknown constants. To make the solution match the measured mass and radius, we have tuned up the solution for compact star PSRJ1614-220. The behavior of the solution has been thoroughly examined for the same star. By examining the necessary physical characteristics, such as energy conditions, causality condition, hydrostatic equilibrium, pressure-density ratio, Herera Cracking criterion, etc., the physical acceptability of the model in the context of F(Q,T) has been investigated. It is observed that the present solution allows viable modeling of stellar objects in F(Q,T) gravity.
Compact star , Exact solution , F(Q,T) gravity , Karmarkar condition
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Department of Mathematical and Physical Sciences, College of Arts and Science, University of Nizwa, P.O. Box 33, Nizwa, 616, Oman
Research Center of Astrophysics, Cosmology, Khazar University, 41 Mehseti Street, Baku, AZ1096, Azerbaijan
Department of Mathematics, Central University of Haryana, Jant-Pali, Mahendergarh, India
Astrophysics Research Centre, School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Private Bag X54001, Durban, 4000, South Africa
Department of General and Theoretical Physics, L.N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
College of Engineering and Technology, American University of the Middle East, Egaila, 54200, Kuwait
Department of Mathematical and Physical Sciences
Research Center of Astrophysics
Department of Mathematics
Astrophysics Research Centre
Department of General and Theoretical Physics
College of Engineering and Technology
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