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20212026
most citedConstraining spherically symmetric metrics by the gap between photon rings

26 citations · 40 across the 5 of their papers we have counts for

collaborators

6 papers

gr-qc2026

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…

gr-qc2025★ 4 cited

Overlapping of photon rings in black hole imaging

Oleg Yu. Tsupko, Fabio Aratore, Volker Perlick

In this paper, we investigate the overlapping of photon rings - higher-order images of a black hole's luminous environment, concentrated near the shadow boundary and expected to be…

gr-qc2025★ 10 cited

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…

gr-qc2024

Analytical perturbations of relativistic images in Kerr space-time

Fabio Aratore, Valerio Bozza

Light rays passing very close to black holes may wind several times before escaping. For any given electromagnetic source around the black hole, a distant observer would thus obser…

gr-qc2024★ 26 cited

Constraining spherically symmetric metrics by the gap between photon rings

Fabio Aratore, Oleg Yu. Tsupko, Volker Perlick

Gravitational lensing of luminous matter that surrounds a black hole or some other sufficiently compact object produces an infinite sequence of images. Besides the direct (or prima…

gr-qc2021

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…