GRMHD and GRRT simulations of accretion onto a spinning Kerr-like wormhole show throat-dominated emission producing quasi-periodic modulations in 230 GHz light curves, distinct from Kerr black holes.
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Simpson-Visser regularization of Schwarzschild-AdS black holes yields a van der Waals-type temperature branch structure with three coexisting equilibria and topological charge W=+1 for regularization parameter below 1/sqrt(24), distinguishing it from the Schwarzschild-AdS case.
Simulations show the singularity-free Kerr-Hayward metric yields EHT observables that are functionally indistinguishable from the Kerr metric.
The Bondi spherical accretion model is significantly more sensitive to spacetime geometry and fluid equation of state than the Novikov-Thorne thin disk model, making it better at distinguishing regular black holes from classical ones.
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Holographic Thermodynamic Signatures of Simpson--Visser--AdS Black Holes
Simpson-Visser regularization of Schwarzschild-AdS black holes yields a van der Waals-type temperature branch structure with three coexisting equilibria and topological charge W=+1 for regularization parameter below 1/sqrt(24), distinguishing it from the Schwarzschild-AdS case.
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Bondi and Novikov-Thorne accretion in regular black holes and Simpson-Visser spacetimes
The Bondi spherical accretion model is significantly more sensitive to spacetime geometry and fluid equation of state than the Novikov-Thorne thin disk model, making it better at distinguishing regular black holes from classical ones.