Y. Gallant

collaborators

2 papers

astro-ph.HE2026

Gamma-Ray Constraints on Heavy Axion-Like-Particle Decays from Fermi-LAT and H.E.S.S. Blazar Spectra

A. Acharyya, F. Aharonian, M. Backes +117

The propagation of very-high-energy (VHE; $E_{I^}^{3} \geq 100$ GeV) gamma rays from extragalactic sources is affected by interactions with photons of the extragalactic background light…

astro-ph.HE2025

HESS J1831 $-$ 098 -- Exploring a pulsar halo scenario with H.E.S.S. data

Karim Sabri, Yves Gallant, Justine Devin +1

Pulsar halos are a class of extended very-high-energy (VHE) sources highlighted by the HAWC observatory towards the Geminga pulsar and PSR B0656 $+$ 14. These VHE sources are interpr…

Gamma-Ray Constraints on Heavy Axion-Like-Particle Decays from Fermi-LAT and H.E.S.S. Blazar Spectra

HESS J1831−098 -- Exploring a pulsar halo scenario with H.E.S.S. data

HESS J1831 $-$ 098 -- Exploring a pulsar halo scenario with H.E.S.S. data