Impact of Charge on Gravastars in $f(\mathfrak{R},{\mathcal{T}}^2)$ Gravity

Abstract

This paper studies the influence of charge on a compact stellar structure also regarded as vacuum condensate star in the background of $f(\mathfrak{R},{\mathcal{T}}^2)$ gravity. This object is considered the alternate of black hole whose structure involves three distinct regions, i.e., interior, exterior and thin-shell. We analyze these domains of a gravastar for a particular model of this modified theory. In the inner region of a gravastar, the considered equation of state defines that energy density is equal to negative pressure which is the cause of repulsive force on the spherical shell. In the intermediate shell, pressure and energy density are equal and contain ultra-relativistic fluid. The inward-directed gravitational pull of thin-shell counterbalance the force exerted by the inner region of a gravastar allowing the formation of a singularity-free object. The Reissner-Nordstrom metric presents the outer vacuum spherical domain. Moreover, we discuss the impact of the charge on physical attributes of a gravastar such as the equation of state parameter, entropy, proper length and energy. We conclude that singularity-free solutions of charged gravastar are physically consistent in this modified theory.

arXiv comment20 pages, 4 figures

References in corpus (35)

• Is the gravitational-wave ringdown a probe of the event horizon?
• Gravitational Vacuum Condensate Stars
• Stable gravastars - an alternative to black holes?
• Further matters in space-time geometry: $f(R,T,R_{\mu \nu }{T}^{\mu \nu })$ gravity
• How to tell a gravastar from a black hole
• The Lagrangian description of perfect fluids and modified gravity with an extra force
• Ergoregion instability of ultra-compact astrophysical objects
• Energy-Momentum Squared Gravity
• Gravastars in $f(R,\mathcal{T})$ gravity
• $f(R,T_{\mu \nu }{T}^{\mu \nu })$ gravity and Cardassian-like expansion as one of its consequences
• Gravitational wave signatures of the absence of an event horizon. I. Nonradial oscillations of a thin-shell gravastar
• A Multi-Mass Velocity Dispersion Model of 47 Tucanae Indicates No Evidence for an Intermediate Mass Black Hole
• Stable gravastars with generalised exteriors
• Charged gravastars admitting conformal motion
• RX J1856-3754: Evidence for a Stiff EOS
• Gravastars supported by nonlinear electrodynamics
• Cosmological Models in Energy-Momentum-Squared Gravity
• Can accretion disk properties distinguish gravastars from black holes?
• Gravastar Shadows
• Electrically charged gravastar configurations
• Compact stars in Energy-Momentum Squared Gravity
• Palatini formulation of modified gravity with a nonminimal curvature-matter coupling
• Where are all the gravastars? Limits upon the gravastar model from accreting black holes
• Charged Gravastars in Modified Gravity
• Gravastars in $f(\mathcal{G},T)$ Gravity
• Cosmic acceleration in dust only Universe via energy-momentum powered gravity
• Dynamical system analysis of generalized energy-momentum-squared gravity
• Charged gravastars in higher dimensions
• The (2+1)-dimensional charged gravastars
• Gravastar energy conditions revisited
• Stable and "bounded excursion" gravastars, and black holes in Einstein's theory of gravity
• Electromagnetic Fields of Slowly Rotating Magnetized Gravastars
• Gravastars in $f(R,G)$ Gravity
• Charged Gravastars with Conformal Motion in f(R,T) Gravity
• Stable and self consistent charged gravastar model within the framework of $f(R,T)$ gravity

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