REVIEW 39 cited by
Spherical black holes with regular center: a review of existing models including a recent realization with Gaussian sources
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
We review, in a historical perspective, some results about black hole spacetimes with a regular center. We then see how their properties are realized in a specific solution that recently appeared; in particular we analyze in detail the (necessary) violation of the strong energy condition.
Forward citations
Cited by 39 Pith papers
-
Static regular black holes in Horndeski theories: analytic no-go and nonanalytic obstructions
Analytic nondegenerate shift-symmetric Horndeski theories admit no static spherical regular black holes with a time-independent scalar; the unique marginal nonanalytic completion is sGB, whose hairy solutions remain c...
-
Gravitating Tubes Beyond World Line Paradigm In General Relativity
The work constructs timelike tubes foliated by hypersurfaces with a brane-like action whose collective stress-energy is smooth, violates the strong energy condition inside the tube, and reduces to a point-particle act...
-
Obstructions to Minimal Regular Black Hole Cosmologies
Obstructions from matching conditions and completeness theorems prevent minimal regular black hole models from hosting unbounded FRW daughter cosmologies.
-
Dynamical Formation of Regular Black Holes
In quasi-topological gravity, a collapsing thin shell bounces at small radius, producing a regular, geodesically complete black hole instead of a singularity.
-
Semiclassical Black Hole-White Hole transitions: an analytical treatment
The |in>-vacuum stress-energy in 2D collapse models amplifies at the inner horizon and can flip the ingoing null expansion, turning a trapped region into an anti-trapped one.
-
Dymnikova Black Holes in Unimodular Gravity: Maxwell Sources and Vacuum Contributions
Dymnikova black holes are realized in unimodular gravity with Maxwell sources, yielding regular electric fields and vanishing asymptotic charge.
-
Gravitational Properties of the Monopole Bag
Monopole bags in axion models can collapse into horizonless objects or dyonic regular black holes that evade singularities and retain axionic structure through Chern-Simons effects.
-
Regular Black Holes in General Relativity from Nonlinear Electrodynamics with de Sitter Cores
Two new regular black-hole solutions with de Sitter cores, supported by magnetic nonlinear electrodynamics, are constrained by Sgr A* shadows and shown to be linearly stable under scalar perturbations.
-
Tidal Deformation Bounds and Perturbation Transfer in Bounded Curvature Spacetimes
Bounded tidal fields imply a rigorous limit on accumulated geodesic deviation set by τ* = λ_max^{-1/2} and a critical wavenumber k* ~ τ*^{-1} for perturbation transfer with exponential suppression at high k.
-
Topological regular black holes without Cauchy horizon
Hyperbolic and toroidal black hole metrics are constructed with finite curvature invariants and a single horizon, so no Cauchy horizon, and a generalized areal radius extends this to spherical topology.
-
Diverse regular spacetimes using a parametrised density profile
A Dekel-Zhao density profile yields a new regular black hole and a horizonless defect spacetime in general relativity, plus a thin-shell stellar model based on the defect interior.
-
$\tt GrayHawk$: A public code for calculating the Gray Body Factors of massless fields around spherically symmetric Black Holes
A new public Mathematica tool, GrayHawk, computes gray-body factors for massless spin 0, 1/2, 1, and 2 fields around seven spherically symmetric, asymptotically flat black hole metrics.
-
Regular black holes inspired by quasi-topological gravity
A new family of 2D dilaton-gravity models produces exact, regular black hole metrics whose curvature obeys a universal scaling law and a linear master equation.
-
Horava Stars Revisited: New Phases of Incompressible Stars and Black Holes, and Buchdahl's Theorem
In non-projectable Hořava gravity, uniform-density stars can be more compact than in general relativity, with a modified Buchdahl bound from 4/9 to 1, plus new ultra-compact and regular black hole phases.
-
Regular Black Holes from Anisotropic Source with Hydrodynamic Equation of State
Regular black hole metrics are constructed from anisotropic fluids with P=P(ρ) equations of state, yielding known and new solutions while revealing sound-speed sign changes and a universal hierarchy in energy-conditio...
-
Black Bounce via Gravitational Tension Screening Acting as an Analogue of Schwinger Corrections
Gravitational tension screening, acting as an analogue of Schwinger corrections, generates regular black bounce spacetimes for spherical, planar, and hyperbolic sections without ad hoc cores.
-
Field Sources for Dark Matter Black Holes
Dark matter halo profiles admit effective nonlinear electrodynamics completions that source regular black holes exhibiting de Sitter cores for finite central density and Schwarzschild asymptotics.
-
When Bumblebee Meets NLED: Lorentz-Violating Black Holes and Regular Spacetimes
Bumblebee gravity coupled to NLED yields charged black hole solutions that become regular and horizonless when mass and charge are tuned to specific functions of the couplings.
-
Long-lived quasinormal modes, shadows and particle motion in four-dimensional quasi-topological gravity
Massive scalar quasinormal modes in quasi-topological black holes become long-lived as scalar mass grows, while photon-sphere radius, shadow size, and ISCO exhibit moderate deviations from Schwarzschild.
-
Absorption and scattering of massless scalar waves by Frolov black holes
Frolov black hole scalar absorption and scattering are photon-sphere-dominated: rescaling with photon-sphere frequency and geometric cross section collapses the high-frequency spectra, and impact-parameter-matched Fro...
-
Roche limit and stellar disruption in the Simpson--Visser spacetime
Tidal forces in the Simpson-Visser spacetime produce Roche radii for stars that depend on observer type and regularization, with some disruptions occurring outside the event horizon for supermassive black holes.
-
Scalarization of Bardeen spacetime
For scalarization of the full Bardeen spacetime, small magnetic charges give the usual smooth scalarization threshold, while large charges end in a 'frozen' horizonless scalarized state rather than a Bardeen black hole.
-
Bondi accretion disk luminosity around neutral and charged Simpson-Visser spacetimes
Bondi accretion is computed in Simpson-Visser and charged Simpson-Visser spacetimes, but the reported critical (sonic) radii are not supported by the paper's own equations.
-
Null geodesics, causal structure, and matter accretion in Lorentzian-Euclidean black holes
In the Lorentzian-Euclidean black hole, photons and massive particles are claimed to be unable to cross the event horizon, making the spacetime geodesically complete and avoiding the central singularity.
-
Finite Curvature Construction of Regular Black Holes and Quasinormal Mode Analysis
Regular black holes are constructed by prescribing finite curvature invariants with analytic profiles, yielding singularity-free geometries whose quasinormal mode stability depends on the effective potential's peak-to...
-
Physical and Theoretical Challenges to Integrable Singularities
Generic scalar perturbations near integrable singularities have non-integrable energy density, and extended objects cannot traverse them safely, challenging their viability as black hole alternatives.
-
Spherically symmetric and static black bounces with multiple horizons, throats, and anti-throats in four dimensions
A new family of static, spherically symmetric black bounce spacetimes with multiple horizons, throats, and anti-throats is constructed and sourced by a partially phantom scalar field with nonlinear electrodynamics.
-
Regular Black Hole from gravitational collapse of dust and radiation
A dust and radiation collapse with an ad hoc radial energy exchange can yield a regular black hole center with finite curvature.
-
Black Holes and Baryon Number Violation: Unveiling the Origins of Early Galaxies and the Low-Mass Gap
The authors argue that near a black hole horizon the gravitational field flattens the Higgs potential, removing the sphaleron barrier, and that the resulting baryon generation can explain early massive galaxies and th...
-
Black bounce sourced by non-minimally coupled linear electrodynamics and a canonical scalar field through a thin shell at the throat
A new family of black bounce and wormhole solutions in general relativity is constructed from a canonical scalar field non-minimally coupled to linear electrodynamics, with the required energy-condition violation conf...
-
Extended Phase Space Thermodynamics and Joule-Thomson Expansion of Regular AdS Black Holes in a String Cloud
Regular AdS black holes in a string cloud show Van der Waals P–V criticality with r0-scale-invariant compressibility, ε-dependent critical ratio, mean-field exponents, and mapped JT inversion curves.
-
On relativistic observables in black bounce spacetimes
Black bounce spacetimes with larger throat parameter α produce enhanced periastron precession, light deflection, and a larger critical impact parameter in the wormhole regime, offering potential observational signatures.
-
Black bounce solutions in a realistic dark matter halo from M60*
A Simpson-Visser black bounce is embedded in an M60-calibrated dark matter halo, with the Sgr A* shadow radius constraining the solution to regular black hole configurations.
-
Can finite-density QCD matter support a regular black hole core?
Within two QCD-inspired equations of state coupled to Eddington-Finkelstein collapse, finite chemical potential reshapes thermodynamics but does not produce self-regularizing black hole cores.
-
Long-lived quasinormal frequencies for regular black hole supported by the Einasto profile in the presence of the magnetic field
For Einasto-supported regular black holes, larger effective scalar mass and certain halo parameters suppress the quasinormal damping rate, producing long-lived modes and shifting grey-body factors toward higher frequencies.
-
Gravitational Collapse and Formation of Regular Black Holes: Dymnikova, Hayward, and Beyond
The paper derives a radiation density formula for a collapse in which baryonic matter converts into arbitrary target regular black hole matter.
-
Formation of regular black hole from baryonic matter
A family of regular black hole collapse solutions is built by imposing a de Sitter core and matching to a Husain exterior; the shadow radius grows with the barotropic parameter alpha.
-
Astrophysical Signature and Optical Appearance of Weyl--Corrected Einstein--Maxwell Black Holes
Weyl corrections to Einstein-Maxwell black holes alter thermodynamic stability, topological classification, photon shadows, and accretion disk luminosity, enabling constraints on the correction parameter from astrophy...
-
De Sitter Cores from Nonlocal Quantum Field Theories
An exponential nonlocal regulator maps a point mass to a Gaussian density whose Einstein solution has a de Sitter core, reproducing (with new labeling) the known Gaussian-sourced regular black hole.
Discussion (0). Continue with ORCID to comment.