Physical Attributes of Anisotropic Compact Stars in $f(R,G)$ Gravity

Abstract

Modified gravity is one of the potential candidates to explain the accelerated expansion of the universe. Current study highlights the materialization of anisotropic compact stars in the context of $f(R,G)$ theory of gravity. In particular, to gain insight in the physical behavior of three stars namely, Her $X1$, SAX J $1808$-$3658$ and 4U $1820$-$30$, energy density, and radial and tangential pressures are calculated. The $f(R,G)$ gravity model is split into a Starobinsky like $f(R)$ model and a power law $f(G)$ model. The main feature of the work is a $3$-dimensional graphical analysis in which, anisotropic measurements, energy conditions and stability attributes of these stars are discussed. It is shown that all three stars behave as usual for positive values of $f(G)$ model parameter $n$.

21 pages, revised version, to appear in EPJC

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Cited by in corpus (19)

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• Gravastars in $f(\mathcal{G},T)$ Gravity
• Non-trivial class of anisotropic compact stellar model in Rastall gravity
• The effect of $f(R,T)$ modified gravity on mass and radius of pulsar HerX1
• Complexity analysis of Cylindrically Symmetric Self-gravitating Dynamical System in $f(R,T)$ Theory of Gravity
• Existence of Static Wormhole Solutions in $f(R,G)$ Gravity
• Viable and Stable Compact Stellar Structures in $f(\mathcal{Q},\mathcal{T})$ Theory
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• Study of Compact Stars in $\mathcal{R}+\alpha \mathcal{A}$ Gravity
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• Charged Anisotropic Finch-Skea-Bardeen Spheres
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• Compact Objects admitting Finch-Skea Symmetry in $f(\mathcal{R},T^2)$ Gravity