Anisotropic ultracompact Schwarzschild star by gravitational decoupling

Abstract

We employ the minimal geometric deformation approach to gravitational decoupling (MGD-decoupling) in order to generate an exact anisotropic and non-uniform version of the ultracompact Schwarzschild star, or 'gravastar', proposed by Mazur and Mottola. This new system represents an ultracompact configuration of radius $R_S=2\mathcal{M}$ whose interior metric can be matched smoothly to a conformally deformed Schwarzschild exterior. Remarkably, the model satisfies some of the basic requirements to describe a stable stellar model, such as a positive density everywhere and decreasing monotonously from the centre, as well as a non-uniform and monotonic pressure.

20 pages, 4 figures. arXiv admin note: text overlap with arXiv:1905.10162

References in corpus (65)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
• GW170608: Observation of a 19-solar-mass Binary Black Hole Coalescence
• Testing the nature of dark compact objects: a status report
• Gravitational Vacuum Condensate Stars
• The Thermodynamics of Black Holes
• Anisotropic Stars in General Relativity
• Stable gravastars - an alternative to black holes?
• Decoupling gravitational sources in general relativity: from perfect to anisotropic fluids
• Gravastars must have anisotropic pressures
• Anisotropic solutions by gravitational decoupling
• Decoupling gravitational sources in general relativity: the extended case
• Light rings as observational evidence for event horizons: long-lived modes, ergoregions and nonlinear instabilities of ultracompact objects
• How to tell a gravastar from a black hole
• Stars in the braneworld
• Searching Exact Solutions for Compact Stars in Braneworld: a conjecture
• Gravitational decoupled anisotropies in compact stars
• Tolman IV solution in the Randall-Sundrum Braneworld
• Black holes by gravitational decoupling
• The Minimal Geometric Deformation Approach Extended
• Ergoregion instability of ultra-compact astrophysical objects
• Gravitational wave signatures of the absence of an event horizon. I. Nonradial oscillations of a thin-shell gravastar
• Gravitational Decoupled Charged Anisotropic Spherical Solutions
• Gravastars supported by nonlinear electrodynamics
• Surface Tension and Negative Pressure Interior of a Non-Singular `Black Hole'
• Gravastar Shadows
• Did GW150914 produce a rotating gravastar?
• Brane-world stars with solid crust and vacuum exterior
• Minimal Geometric Deformation in a cloud of strings
• The role of exterior Weyl fluids on compact stellar structures in Randall-Sundrum gravity
• Stability of the graviton Bose-Einstein condensate in the brane-world
• Brane-world stars and (microscopic) black holes
• On the ergoregion instability in rotating gravastars
• Using MGD gravitational decoupling to extend the isotropic solutions of Einstein equations to the anisotropical domain
• Minimal geometric deformation decoupling in $2+1$ dimensional space-times
• Classical Tests of General Relativity: Brane-World Sun from Minimal Geometric Deformation
• A general interior anisotropic solution for a BTZ vacuum in the context of the Minimal Geometric Deformation decoupling approach
• Quadrupole moments of rotating neutron stars and strange stars
• I-Love-Q relations for a gravastar and the approach to the black-hole limit
• Charged anisotropic compact objects by gravitational decoupling
• Einstein-Klein-Gordon by gravitational decoupling
• Gravitational Decoupled Anisotropic Solutions in $f(\mathcal{G})$ Gravity
• General relativistic polytropes with a repulsive cosmological constant
• Minimal Geometric Deformation: the inverse problem
• Dark SU(N) glueball stars on fluid branes
• Strong Deflection Limit Lensing Effects in the Minimal Geometric Deformation and Casadio-Fabbri-Mazzacurati Solutions
• Gravastar energy conditions revisited
• Black hole acoustics in the minimal geometric deformation of a de Laval nozzle
• Black Strings from Minimal Geometric Deformation in a Variable Tension Brane-World
• Extending the geometric deformation: New black hole solutions
• Eleven spherically symmetric constant density solutions with cosmological constant
• The extended minimal geometric deformation of SU($N$) dark glueball condensates
• Extended quantum portrait of MGD black holes and information entropy
• Gravitational decoupling in $2+1$ dimensional space--times with cosmological term
• Gravitational instability of polytropic spheres containing region of trapped null geodesics: a possible explanation of central supermassive black holes in galactic halos
• Gregory-Laflamme analysis of MGD black strings
• Stable Schwarzschild stars as black-hole mimickers
• On the radial stability of ultra compact Schwarzschild stars beyond the Buchdahl limit
• Slowly rotating super-compact Schwarzschild stars
• On gravastar formation: What can be the evidence of a black hole?
• An exact time-dependent interior Schwarzschild solution

Cited by in corpus (48)

• Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A${}^{\ast }$
• Hairy black holes by gravitational decoupling
• Gravitational decoupling for axially symmetric systems and rotating black holes
• Anisotropic Tolman VII solution by gravitational decoupling
• An anisotropic version of Tolman VII solution in $f(R,T)$ gravity via Gravitational Decoupling MGD Approach
• A way of decoupling gravitational sources in pure Lovelock gravity
• Anisotropic Tolman V Solution by Minimal Gravitational Decoupling Approach
• Exploring physical properties of minimally deformed strange star model and constraints on maximum mass limit in $f(\mathcal{Q})$ gravity
• Decoupling gravitational sources by MGD approach in Rastall gravity
• Stellar models with like--Tolman IV complexity factor
• A simple protocol to construct solutions with vanishing complexity by Gravitational Decoupling
• Ultracompact stars with polynomial complexity by gravitational decoupling
• Uncharged and charged anisotropic like--Durgapal stellar model with vanishing complexity
• Gravitational cracking and complexity in the framework of gravitational decoupling
• MGD Dirac stars
• The minimal of geometric deformation of Yang-Mills-Dirac stellar configurations
• Anisotropic 2+1 dimensional black holes by gravitational decoupling
• Energy exchange between relativistic fluids: the polytropic case
• Role of gravitational decoupling on isotropization and complexity of self-gravitating system under complete geometric deformation approach
• Probing hairy black holes caused by gravitational decoupling using quasinormal modes and greybody bounds
• Influence of three parameters on maximum mass and stability of strange star under linear $f(Q)-$action
• Regularity condition on the anisotropy induced by gravitational decoupling in the framework of MGD
• A static and spherically symmetric hairy black hole in the framework of the Gravitational Decoupling
• Probing the minimal geometric deformation with trace and Weyl anomalies
• MGD-decoupled black holes, anisotropic fluids and holographic entanglement entropy
• Echoes of the gravitational decoupling: scalar perturbations and quasinormal modes of hairy black holes
• Anisotropic stars in modified gravity: An extended gravitational decoupling approach
• Geodesic motion around hairy black holes
• Gravitational decoupling, hairy black holes and conformal anomalies
• Gravitational decoupling of generalized Horndeski hybrid stars
• Study of Charged Compact Stars in Non-minimally Coupled Gravity
• Braneworld Gravity under gravitational decoupling
• Quasi Normal Modes of hairy black holes at higher--order WKB approach
• Gravitational decoupling and superfluid stars
• $2+1$ Einstein-Klein-Gordon black holes by gravitational decoupling
• Complexity factor of spherically anisotropic polytropes from gravitational decoupling
• Gravitational Cracking of General Relativistic Polytropes: a generalized scheme
• Gravitational decoupling for hairy black holes in asymptotically AdS spacetimes
• Slowly rotating anisotropic relativistic stars
• Gravitational Decoupling algorithm modifies the value of the conserved charges and thermodynamics properties in Lovelock Unique Vacuum theory
• Double relativistic master polytrope for anisotropic matter
• Neutrino trapping in extremely compact Tolman VII spacetimes
• A vacuum solution of modified Einstein equations based on fractional calculus
• Trapping of null geodesics in slowly rotating spacetimes
• Slowly rotating ultracompact Schwarzschild star in the gravastar limit
• Energy transfer between the sources in gravitational decoupling
• Tidal deformability of ultracompact Schwarzschild stars and their approach to the black hole limit
• Slowly rotating covariant anisotropic objects