8 papers
Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr
Ciro De Simone, Sebastian H. Völkel, Kostas D. Kokkotas +2
The accurate computation of quasinormal modes from rotating black holes beyond general relativity is crucial for testing fundamental physics with gravitational waves. In this study…
Observational constraints on nonlocal black holes via gravitational lensing
Rocco D'Agostino, Vittorio De Falco
In this paper, we study the gravitational lensing around the static and spherically symmetric DD black holes, which we recently derived as perturbations of the Schwarzschild geomet…
Gravitational perturbations of nonlocal black holes
Rocco D'Agostino, Vittorio De Falco
We derive the master equations governing axial and polar gravitational perturbations of a generic static and spherically symmetric black hole spacetime within the framework of the…
Compact binary system dynamics at the second post-Newtonian order: analytical formula of the coordinate time for eccentric and circular orbits
Vittorio De Falco, Marco Gallo
This work is based on the letter Phys. Lett. B, 865, 139484 (2025), where we developed the analytical expression of the coordinate time in terms of the eccentric anomaly at the sec…
Toward a unified view of agnostic parametrizations for deformed black holes
Manuel Del Piano, Ciro De Simone, Mattia Damia Paciarini +4
A variety of robust and effective descriptions have been devised to extract model-independent information about the fundamental properties of black holes from observational data wh…
Black hole solutions in the revised Deser-Woodard nonlocal theory of gravity
Rocco D'Agostino, Vittorio De Falco
We consider the revised Deser-Woodard model of nonlocal gravity by reformulating the related field equations within a suitable tetrad frame. This transformation significantly simpl…