Stability analysis of Lower Dimensional Gravastars in noncommutative geometry

Abstract

The Bañados, Teitelboim and Zanelli \cite{BTZ1992}, black hole solution is revamped from the Einstein field equations in (2 + 1)-dimensional anti-de Sitter spacetime, in a context of noncommutative geometry \cite{Rahaman(2013)}. In this article, we explore the exact gravastar solutions in three-dimension anti-de Sitter space given in the same geometry. As a first step we derive BTZ solution assuming the source of energy density as point-like structures in favor of smeared objects, where the particle mass M, is diffused throughout a region of linear size $\sqrt{\alpha }$ and is described by a Gaussian function of finite width rather than a Dirac delta function. We matched our interior solution to an exterior BTZ spacetime at a junction interface situated outside the event horizon. Furthermore, stability analysis is carried out for the dynamic case for the specific case when $\chi <0.214$ under radial perturbations about static equilibrium solutions. To give theoretical support we also trying to explore their physical properties and characteristics.

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References in corpus (14)

• Noncommutative geometry inspired charged black holes
• How to tell a gravastar from a black hole
• Non-commutative geometry inspired higher-dimensional charged, black holes
• Charged rotating noncommutative black holes
• Charged gravastars admitting conformal motion
• Gravastars supported by nonlinear electrodynamics
• Noncommutative Inspired Black Holes in Extra Dimensions
• Trace Anomaly in Quantum Spacetime Manifold
• Where are all the gravastars? Limits upon the gravastar model from accreting black holes
• Self-sustained traversable wormholes in noncommutative geometry
• Van der Waals quintessence stars
• Gravastar energy conditions revisited
• Strong gravitational lensing in a noncommutative black-hole spacetime
• A noncommutative approach to the cosmological constant problem