Buchdahl quark stars within $f(Q)$ theory

Abstract

In the present paper, authors study the strange stars with the MIT Bag EoS admitting Buchdahl symmetry (non-singular and physically viable metric potential) in the both linear $f(Q)=aQ+b$ and non-linear $f(Q)=Q+a{Q}^b$ forms of modified symmetric teleparallel gravitation. In order to obtain the correct form of Buchdahl metric coefficients, they matched interior strange star spacetime with the exterior Schwarzschild vacuum spacetime. As a strange star candidate, PSRJ1416-2230 has been used with mass $M=1.69M_{\odot }$ and radius $R=9.69R_{\odot }$. For either linear and non-linear $f(Q)$ gravities, they probed Null, Dominant and Strong Energy Conditions as well as the radial, tangential Equation of State (EoS), gradients of the perfect fluid energy-momentum tensor elements, Tolman-Oppenheimer-Volkoff equilibrium condition, relativistic adiabatic index and causality conditions, surface redshift. It was found that strange stars in the linear and non-linear $f(Q)$ gravity show physically viable behavior, respect energy and causality conditions, has EoS in the bounds $0\le \omega \le 1$ and surface redshift does not exceed 2, as expected.

arXiv commentEPJ Plus published version

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Cited by in corpus (15)

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• Gravastar in the Framework of Symmetric Teleparallel Gravity
• The Stability of Anisotropic Compact Stars Influenced by Dark Matter under Teleparallel Gravity: An Extended Gravitational Deformation Approach
• Wormhole formations in the galactic halos supported by dark matter models and global monopole charge within $f(Q)$ gravity
• Exploring wormhole solutions with global monopole charge in the context of $f(Q)$ gravity
• $f(Q,L_m)$ gravity, and its cosmological implications
• Deflection of light by wormholes and its shadow due to dark matter within modified symmetric teleparallel gravity formalism
• Wormhole Geometries Supported by Strange Quark Matter and Phantom-like Generalized Chaplygin gas within $f(Q)$ Gravity
• A Comprehensive Study of Massive Compact Star Admitting Conformal Motion Under Bardeen Geometry
• $f(Q,T)$ gravity: From early to late-time cosmic acceleration
• Cosmological constraints on $f(Q)$ gravity models in the non-coincident formalism
• Polytropic Stars in $f(Q)=Q+\xi Q^2$ covariant formulation
• Stellar isotropic model in the symmetric teleparallel equivalent of general relativity theory
• Vulnerability of f(Q) gravity theory and a possible resolution
• Neutron stars in $f(\mathbb{Q})$ gravity