220 citations · 662 across the 8 of their papers we have counts for
7 papers · 1 filter
Probing Kerr spacetime via interferometric signatures of higher-order images
Fabiano Feleppa, Fabio Aratore, Valerio Bozza +1
Higher-order images produced by photons that orbit close to the unstable photon region of a black hole encode information about the spacetime geometry and leave characteristic sign…
Gravitational lensing by extremal rotating black holes in the strong deflection limit
Fabiano Feleppa, Valerio Bozza, Welmoed Marit de Graaf
In the strong deflection regime, light rays passing close to an astrophysical black hole may remain trapped near unstable photon orbits for a long time before escaping to infinity.…
Interferometric signature of higher-order images in a parametrized framework
Fabiano Feleppa, Fabio Aratore, Valerio Bozza
This paper investigates gravitational lensing in the strong deflection limit, focusing particularly on higher-order images produced near compact objects such as black holes and the…
Decoding a black hole metric from the interferometric pattern of the relativistic images of a compact source
F. Aratore, V. Bozza
Photons emitted by light sources in the neighbourhood of a black hole can wind several times around it before fleeing towards the observer. For spherically symmetric black holes, t…
Optical caustics of Kerr spacetime: the full structure
V. Bozza
We present an exhaustive numerical investigation of the optical caustics in gravitational lensing by a spinning black hole for an observer at infinity. Besides the primary caustic,…
Analytic Kerr black hole lensing for equatorial observers in the strong deflection limit
V. Bozza, F. De Luca, G. Scarpetta +1
In this paper we present an analytical treatment of gravitational lensing by Kerr black holes in the limit of very large deflection angles, restricting to observers in the equatori…
Quasi-Equatorial Gravitational Lensing by Spinning Black Holes in the Strong Field Limit
V. Bozza
Spherically symmetric black holes produce, by strong field lensing, two infinite series of relativistic images, formed by light rays winding around the black hole at distances comp…