activity
20232026
most citedBlack hole photon ring beyond General Relativity: an integrable parametrization

10 citations · 11 across the 5 of their papers we have counts for

collaborators

5 papers

gr-qc2026★ 1 cited

Horizon Multipole Moments of a Kerr Black Hole

Eric Gourgoulhon, Alexandre Le Tiec, Marc Casals

The horizon multipole moments of a Kerr black hole are computed from two distinct definitions that have been proposed in the literature. The first one [Ashtekar et al., Class. Quan…

astro-ph.HE2026

Jet launching from the Kerr black hole magnetosphere: An electrogeodesic approach

Jibril Ben Achour, Ileyk El Mellah, Eric Gourgoulhon

The launch of relativistic jets of plasma on astrophysical to cosmological scales is observed in a variety of astrophysical sources, from active galactic nuclei to X-ray binaries.…

gr-qc2025★ 10 cited

Black hole photon ring beyond General Relativity: an integrable parametrization

Jibril Ben Achour, Eric Gourgoulhon, Hugo Roussille

In recent years, the shape of the photon ring in black holes images has been argued to provide a sharp test of the Kerr hypothesis for future black hole imaging missions. In this w…

hep-th2024

More on thermal holographic RG flows in a 3D gauged supergravity

Anastasia A. Golubtsova, Eric Gourgoulhon, Mikhail A. Podoinitsyn

We continue our studies of holographic renormalization group (RG) flows for a 3d truncated supergravity model, the scalar potential of which can have either one or three extrema de…

astro-ph.HE2023

GYOTO 2.0: a polarized relativistic ray-tracing code

N. Aimar, T. Paumard, F. H. Vincent +2

Polarized general-relativistic radiative transfer in the vicinity of black holes and other compact objects has become a crucial tool for probing the properties of relativistic astr…