Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A
Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …
unprecedented window onto tests of gravity and fundamental physics in the strong-field …
[PDF][PDF] Fundamental physics opportunities with the next-generation event horizon telescope
D Ayzenberg, L Blackburn, R Brito… - ar** horizons) of stationary geometries, leading to a divergent …
Quasinormal modes-shadow correspondence for rotating regular black holes
Eikonal quasinormal modes (QNMs) of black holes (BHs) and parameters of null geodesics,
ultimately tied to the appearance of BHs to external observers, are known to be related, and …
ultimately tied to the appearance of BHs to external observers, are known to be related, and …
Nature of inner light rings
F Di Filippo - Physical Review D, 2024 - APS
Nonsingular horizonless ultracompact objects provide a simple resolution to the black holes
singularity problem. It has been shown that, if these objects are compact enough to exhibit …
singularity problem. It has been shown that, if these objects are compact enough to exhibit …
A connection between regular black holes and horizonless ultracompact stars
A bstract We illustrate that regular black holes and horizonless stars, typically considered as
quite distinct families of black hole mimickers, are intimately intertwined. We show that any …
quite distinct families of black hole mimickers, are intimately intertwined. We show that any …
Regular evaporating black holes with stable cores
A Bonanno, AP Khosravi, F Saueressig - Physical Review D, 2023 - APS
A feature shared by many regular black hole spacetimes is the occurrence of a Cauchy
horizon. It is then commonly believed that this renders the geometry unstable against …
horizon. It is then commonly believed that this renders the geometry unstable against …
[HTML][HTML] Regularized stable Kerr black hole: cosmic censorships, shadow and quasi-normal modes
Black hole solutions in general relativity come with pathologies such as singularity and mass
inflation instability, which are believed to be cured by a yet-to-be-found quantum theory of …
inflation instability, which are believed to be cured by a yet-to-be-found quantum theory of …
Are nonsingular black holes with super-Planckian hair ruled out by S2 star data?
We investigate a nonsingular black hole spacetime representing a strong deformation of the
Schwarzschild solution with mass M by an additional hair ℓ, which may be hierarchically …
Schwarzschild solution with mass M by an additional hair ℓ, which may be hierarchically …
Cosmology from Schwarzschild black hole revisited
We study cosmological models based on the interior of the revisited Schwarzschild black
hole recently reported in [Phys. Rev. D 109, 104032 (2024) PRVDAQ 2470-0010 …
hole recently reported in [Phys. Rev. D 109, 104032 (2024) PRVDAQ 2470-0010 …