Astrophysical Wormholes

Abstract

Wormholes are hypothetical topologically-non-trivial structures of the spacetime. From the theoretical point of view, the possibility of their existence is challenging but cannot be ruled out. This article is a compact and non-exhaustive review of past and current efforts to search for astrophysical wormholes in the Universe.

13 pages, 9 figures. Invited contribution to the special issue of Universe "Recent Advances in Wormhole Physics" (Eds. K.A. Bronnikov and S. Sushkov). Partially based on e-Print 2010.03947 [gr-qc], e-Print 2007.12184 [gr-qc], e-Print 1910.00429 [gr-qc], e-Print 1810.03432 [hep-th]. v2: added some references

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Cited by in corpus (55)

• Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A${}^{\ast }$
• No-Hair Theorem in the Wake of Event Horizon Telescope
• Ricci inverse gravity wormholes
• Ultracompact stars with polynomial complexity by gravitational decoupling
• Thin accretion disk in the Simpson-Visser black-bounce and wormhole spacetimes
• Existence of Wormhole Solutions in $f(Q,T)$ Gravity under Non-commutative Geometries
• GUP Corrected Casimir Wormholes in $f(Q)$ Gravity
• Static and spherically symmetric wormholes in metric-affine theories of gravity
• Light Ring behind Wormhole Throat: Geodesics, Images and Shadows
• Spinning test particle motion around a traversable wormhole
• Unveiling the nature of SgrA* with the geodesic motion of S-stars
• Shadow of a charged black hole with scalar hair
• Traversable wormholes in beyond Horndeski theories
• Constraining Wormhole Geometries using the Orbit of S2 Star and the Event Horizon Telescope
• The Galactic Center as a laboratory for theories of gravity and dark matter
• Traversable Wormhole in Einstein 3-Form Theory With Self-Interacting Potential
• Traversable wormholes with like--Casimir complexity supported with arbitrarily small amount of exotic matter
• Echoes from Hairy Black Holes
• Traversable Morris-Thorne-Buchdahl wormholes in quadratic gravity
• Particle motion around a static axially symmetric wormhole
• Compact objects of spherical symmetry in beyond Horndeski theories
• Asymmetric wormholes in Palatini $f(\mathcal{R})$ gravity: Energy conditions, absorption and quasibound states
• Kerr-Newman Black Holes in Weyl-Cartan Theory: Shadows and EHT constraints
• Construction of a traversable wormhole from a suitable embedding function
• Killing horizons and surface gravities for a well-behaved three-function generalisation of the Kerr spacetime
• Gravitoelectromagnetic coupled perturbations and quasinormal modes of a charged black hole with scalar hair
• Microlensing effects of wormholes associated to blackhole spacetimes
• Non-Abelian Wormholes Threaded by a Yang-Mills-Higgs Field beyond the BPS Limit
• Quasi normal modes of a Casimir--like traversable wormhole through the semi-analytical WKB approach
• Throat effects on strong gravitational lensing in Kerr-like wormholes
• Microlensing effect of charged spherically symmetric wormhole
• Einstein-Rosen bridge from the minimal length
• Appearance of Keplerian discs orbiting on both sides of a reflection-symmetric wormhole
• Catenoid Inspired Hyperbolic Wormhole Geometry
• Some optical properties of rotating wormhole in Bopp-Podolsky electrodynamics
• Echoes from bounded universes
• Inaccessibility of traversable wormholes
• New rotating Lorentzian wormhole spacetime
• Wormhole solutions in generalized Rastall gravity
• Quasinormal modes of a charged black hole with scalar hair
• Wormholes from beyond
• Field Sources for Wormholes With Multiple Throats/Anti-throats
• Galactic microlensing by backreacted massless wormholes
• Traversable wormholes with multiple unstable critical curves
• Outgoing electromagnetic flux from rotating wormholes
• Scalar particles around a Rindler-Schwarzschild wormhole
• Magnetic field geometry in rotating wormhole spacetimes
• Hyperbolic Casimir-like wormhole
• Search for Wormhole Candidates: Accreting Wormholes with Monopole Magnetic Fields
• Observational signatures of Rotating compact objects in Plasma space-time
• On the uplift of 4D wormholes in Braneworld models and their 5D structure
• The neutrino flavor oscillations in the static and spherically symmetric black-hole-like wormholes
• The eye of the storm: A regular Kerr black hole
• Josephson junction formed in the wormhole space time from the analysis for the critical temperature of Bose-Einstein condensate
• Traversable Wormholes induced by polytropic $n=1$ energy density