Gravastars in $f(R,G)$ Gravity

Abstract

In this paper, we discuss some feasible features of gravastar that were firstly demonstrated by Mazur and Mottola. It is already established that gravastar associates the de-Sitter spacetime in its inner sector with the Schwarzschild geometry at its exterior through the thin shell possessing the ultra-relativistic matter. We have explored the singularity free spherical model with a particular equation of state under the influence of $f(R,G)$ gravity, where $R$ is the Ricci scalar and $G$ is the Gauss-Bonnet term. The interior geometry is matched with a suitable exterior using Israel formalism. Also, we discussed a feasible solution of gravastar which describes the other physically sustainable factors under the influence of $f(R,G)$ gravity. Different realistic characteristics of the gravastar model are discussed, in particular, shell's length, entropy, and energy. A significant role of this particular gravity is examined for the sustainability of gravastar model.

arXiv comment21 pages, 4 figures

References in corpus (43)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• The Cosmological Constant and Dark Energy
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
• Gravitational Vacuum Condensate Stars
• Stable gravastars - an alternative to black holes?
• Construction of cosmologically viable f(G) gravity models
• Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum
• The Cosmology of Modified Gauss-Bonnet Gravity
• Neutron Star Masses and Radii from Quiescent Low-Mass X-ray Binaries
• Evolution of cosmological perturbations in Bose-Einstein condensate dark matter
• Junctions and thin shells in general relativity using computer algebra I: The Darmois-Israel Formalism
• Energy conditions in $f(R,G)$ gravity
• Energy Conditions in Modified $f(G)$ Gravity
• On the stability of the cosmological solutions in f(R,G) gravity
• Gravastar Solutions with Continuous Pressures and Equation of State
• RX J1856-3754: Evidence for a Stiff EOS
• Gravastars supported by nonlinear electrodynamics
• Thin shell wormholes in higher dimensiaonal Einstein-Maxwell theory
• On the $\Lambda$CDM Universe in $f(G)$ gravity
• Born-Infeld Phantom Gravastars
• Dynamics of Inflation and Dark Energy from $F(R,\mathcal{G})$ Gravity
• Role of Tilted Congruence and $f(R)$ Gravity on Regular Compact Objects
• Charged Gravastars in Modified Gravity
• A comparison of Hořava-Lifshitz gravity and Einstein gravity through thin-shell wormhole construction
• Exploring Cylindrical Solutions in Modified f(G) Gravity
• Noether Symmetry Approach in $f(\mathcal{G},T)$ Gravity
• Thin-shell wormholes from charged black holes in generalized dilaton-axion gravity
• Gravastar energy conditions revisited
• Extended matter bounce scenario in ghost free $f(R,\mathcal{G})$ gravity compatible with GW170817
• Some Exact Solutions in $f(\mathcal{G},T)$ Gravity via Noether Symmetries
• Influence of $f(R)$ Models on the Existence of Anisotropic Self-Gravitating Systems
• Linearized stability analysis of gravastars in noncommutative geometry
• Phase structure of the massive chiral Gross-Neveu model from Hartree-Fock
• Cosmological scaling solutions in generalised Gauss-Bonnet gravity theories
• Stable and "bounded excursion" gravastars, and black holes in Einstein's theory of gravity
• Inevitable ghost and the degrees of freedom in f(R,G) gravity
• Remarks on generalized Gauss-Bonnet dark energy
• Connecting Synchrotron, Cosmic Rays, and Magnetic Fields in the Plane of the Galaxy
• Energetics in Condensate Star and Wormholes
• Evolution of Compact Stars and Dark Dynamical Variables
• Thermodynamical aspects of relativistic hydrodynamics in f(R,G) gravity

Cited by in corpus (13)

• Thin-Shell Gravastar Model in $f(Q,T)$ Gravity
• Constraining study of charged gravastars solutions in symmetric teleparallel gravity
• Stable Bounded Excursion Gravastars with Regular Black Holes
• Gravastar in the Framework of Symmetric Teleparallel Gravity
• Stable three-dimensional (un)charged AdS gravastars in gravity's rainbow
• Dynamical conditions and causal transport of dissipative spherical collapse in $f(R,T)$ gravity
• Junction conditions in gravity theories with extra scalar degrees of freedom
• Compact relativistic geometries in $f(R,G)$ gravity
• Formation of Cylindrical Gravastars in Modified Gravity
• Impact of Charge on Gravastars in $f(\mathfrak{R},{\mathcal{T}}^2)$ Gravity
• The Fate of the Universe Evolution in the Quadratic Form of Ricci-Gauss-Bonnet Cosmology
• Gravastar in the framework of Loop Quantum Cosmology
• Charged Gravastar Solutions in the Finch-Skea Framework with f(\mathbb{Q}) Gravity