Charged Compact Stars in Extended $f(\mathcal{R},\mathcal{G},\mathcal{T})$ Gravity

Abstract

The purpose of this paper is to study charged compact stars using extended gravitational theory, also known as $f(\mathcal{R},\mathcal{G},\mathcal{T})$ gravity. Alternatively, this theory is also called $f(\mathcal{R},\mathcal{T},\mathcal{G})$ gravity. The symbols $\mathcal{R},\mathcal{G}$, and $\mathcal{T}$ denote the Ricci Scalar, the Gauss-Bonnet invariant, and the trace of the energy-momentum tensor, respectively. We suggested several plausible models in the framework of this new gravity theory, and then used these models to explore several physical properties of compact objects of relativistic nature. This research also takes into account three famous compact stars: Vela X-1 (CS1); SAXJ1808.4-3658 (CS2); and 4U1820-30 (CS3). Moreover, using the suggested models, the physical nature of anisotropic stress, energy density, various energy conditions (ECs), the state of equilibrium, interior stability, mass variations, compactness, anisotropy, electric charge, and electric field intensity are analysed for considered compact stars. Different plots of the above-mentioned quantities are presented for this analysis. Conclusively, the ECs are satisfied, and the compact stars have a significant dense core.

arXiv commentversion accepted for publication/published in New Astronomy

References in corpus (64)

• f(R) Theories Of Gravity
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• 4D Gravity on a Brane in 5D Minkowski Space
• Extended Theories of Gravity
• Introduction to Modified Gravity and Gravitational Alternative for Dark Energy
• f(R,T) gravity
• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Is Cosmic Speed-Up Due to New Gravitational Physics?
• Modified gravity with negative and positive powers of the curvature: unification of the inflation and of the cosmic acceleration
• Modified Gauss-Bonnet theory as gravitational alternative for dark energy
• Extra force in $f(R)$ modified theories of gravity
• Dark energy in modified Gauss-Bonnet gravity: late-time acceleration and the hierarchy problem
• Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase
• Palatini Approach to Modified Gravity: f(R) Theories and Beyond
• Cosmological Tests of Modified Gravity
• Are f(R) dark energy models cosmologically viable ?
• Observational signatures of f(R) dark energy models that satisfy cosmological and local gravity constraints
• Dark energy cosmology from higher-order, string-inspired gravity and its reconstruction
• Dark Energy Dominance and Cosmic Acceleration in First Order Formalism
• Construction of cosmologically viable f(G) gravity models
• Inflationary cosmology in modified gravity theories
• Gravity assisted dark energy dominance and cosmic acceleration
• Black holes, cosmological solutions, future singularities, and their thermodynamical properties in modified gravity theories
• Nonminimal coupling of perfect fluids to curvature
• Hydrostatic equilibrium and stellar structure in f(R)-gravity
• Energy conditions in f(R)-gravity
• LambdaCDM epoch reconstruction from F(R,G) and modified Gauss-Bonnet gravities
• Causes of Irregular Energy Density in $f(R,T)$ Gravity
• Energy conditions and galaxy formation
• Energy conditions in the epoch of galaxy formation
• Generalized energy conditions in Extended Theories of Gravity
• Energy Conditions and Stability in $f(R)$ theories of gravity with non-minimal coupling to matter
• Energy conditions in modified gravity
• The realistic models of relativistic stars in f(R) = R + alpha R^2 gravity
• General Relativistic Energy Conditions: The Hubble expansion in the epoch of galaxy formation
• Evolution of cosmological perturbations in Bose-Einstein condensate dark matter
• Dark energy and cosmological solutions in second-order string gravity
• Ghosts, Instabilities, and Superluminal Propagation in Modified Gravity Models
• Solar system constraints on f(G) gravity models
• Newton law corrections and instabilities in $f(R)$ gravity with the effective cosmological constant epoch
• The Influence of Modification of Gravity on the Dynamics of Radiating Spherical Fluids
• Do f(R) theories matter?
• Energy Conditions and Cosmic Acceleration
• Solar System Constraints on Gauss-Bonnet Mediated Dark Energy
• Existence of Compact Structures in $f(R,T)$ Gravity
• Singularity free anisotropic strange quintessence star
• Charged Compact Stars in $f(\mathcal{G})$ Gravity
• Vacuum structure for scalar cosmological perturbations in Modified Gravity Models
• Influence of $f(R)$ Models on the Existence of Anisotropic Self-Gravitating Systems
• Energy conditions and current acceleration of the universe
• Energy Conditions and Supernovae Observations
• The Weak Energy Condition and the Expansion History of the Universe
• Inevitable ghost and the degrees of freedom in f(R,G) gravity
• Warm Inflation in $f(\mathcal{G})$ Theory of Gravity
• Lookback time bounds from energy conditions
• Vaidya-Tikekar Type Superdense Star Admitting Conformal Motion in Presence of Quintessence Field
• Energy conditions constraints on a class of f(R)-gravity
• Bounce cosmology in $f(\mathcal{R})$ gravity
• Compact Stars in $f(\mathcal{R},\mathcal{G},\mathcal{T})$ Gravity
• Direct evidence of acceleration from distance modulus redshift graph
• Energy Conditions in Non-local Gravity
• Modified gravity: walk through accelerating cosmology
• Compact relativistic geometries in $f(R,G)$ gravity

Cited by in corpus (3)

• Study of Viable Compact Stellar Structures in Non-Riemannian Geometry
• Effects of $f(R,G)$ gravity on anisotropic charged compact objects
• Charged Gravastar Solutions in the Finch-Skea Framework with f(\mathbb{Q}) Gravity