442 citations · 2.3k across the 81 of their papers we have counts for
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astro-ph.HE2025
Multi-TeV Gamma Rays from GRB 221009A: Challenges for Emission Mechanisms, EBL Opacity, and Fundamental Physics
Hassan Abdalla
The detection of gamma-ray burst GRB~221009A has attracted significant attention due to its record brightness and the first-ever detection of multi-TeV -rays from a GRB. Located…
astro-ph.HE2023
Investigating the Lorentz Invariance Violation effect using different cosmological backgrounds
Hassan Abdalla, Garret Cotter, Michael Backes +2
Familiar concepts in physics, such as Lorentz symmetry, are expected to be broken at energies approaching the Planck energy scale as predicted by several quantum-gravity theories.…
astro-ph.HE2018★ 25 cited
Lorentz Invariance Violation Effects on Gamma-Gamma Absorption and Compton Scattering
Hassan Abdalla, Markus Boettcher
In this paper, we consider the impact of Lorentz Invariance Violation (LIV) on the opacity of the Universe to VHE-gamma rays, compared to the effect of local under-densities…