Stable Gravastar model in Cylindrically Symmetric Space-time
arXiv:2302.04874 · doi:10.1016/j.dark.2023.101411
Abstract
We represent a class of new Gravastar solutions as obtained by Mazur and Mottola in a gravitational Bose-Einstein condensate (GBEC) in a cylindrical symmetric space-time. A stable gravastar with three distinct regions namely, (i) Interior de-Sitter space, (ii) Intermediate thin shell with a slice of finite length and (iii) exterior vacuum region. The interior region is characterised by positive energy density and negative pressure , which exerts a repulsive outward force at all points on the thin shell. The thin shell separating the interior and exterior is supposed to be consisting of ultra-relativistic stiff fluid having equation of state , which satisfies the Zel'dovich's criteria. This thin shell, which is considered as the critical surface for the quantum phase transition, replaces both the classical de-Sitter and Schwarzschild event horizons. The new solution is free from any singularities as well as any information paradox. The energy density, total energy, proper length, mass and entropy of the shell region are explored in this model and the gravastar model is stable and physically viable.
arXiv comment14 pages, 8 figures
References in corpus (30)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- Is the gravitational-wave ringdown a probe of the event horizon?
- Gravitational Vacuum Condensate Stars
- Stable gravastars - an alternative to black holes?
- Bounds on the basic physical parameters for anisotropic compact general relativistic objects
- Gravastars must have anisotropic pressures
- Stable dark energy stars
- How to tell a gravastar from a black hole
- Gravitational Condensate Stars: An Alternative to Black Holes
- Junctions and thin shells in general relativity using computer algebra I: The Darmois-Israel Formalism
- Stable gravastars with generalised exteriors
- Gravastar Solutions with Continuous Pressures and Equation of State
- Cylindrical thin-shell wormholes
- Gravastars supported by nonlinear electrodynamics
- Kretschmann Scalar for a Kerr-Newman Black Hole
- Born-Infeld Phantom Gravastars
- Electrically charged gravastar configurations
- The (2+1)-dimensional charged gravastars
- Gravastar energy conditions revisited
- The (2+1)-dimensional gravastars
- Stable and "bounded excursion" gravastars, and black holes in Einstein's theory of gravity
- Cylindrically Symmetric Models of Anisotropic Compact Stars
- Cylindrical Systems in General Relativity
- Electromagnetic Fields of Slowly Rotating Magnetized Gravastars
- The higher dimensional gravastars
- Study of gravastars under gravity
- Gravastar under the framework of Braneworld Gravity
- Study of Gravastars in Rastall Gravity
- How the Charge Can Affect the Formation of Gravastars
- Stable Charged Gravastar model in Cylindrically Symmetric Space-time