activity
20192026
most citedA very-high-energy component deep in the Gamma-ray Burst afterglow

274 citations · 806 across the 35 of their papers we have counts for

collaborators
Showing 2025Show all

6 papers · 1 filter

astro-ph.HE2025

Constraining the nature of the most extreme Galactic particle accelerator. H.E.S.S. observations of the microquasar V4641 Sgr

A. Acharyya, F. Aharonian, H. Ashkar +131

Microquasars have emerged as promising candidates to explain the cosmic-ray flux at petaelectronvolt energies. LHAASO observations revealed V4641~Sgr as the most extreme example so…

astro-ph.HE2025

Probing the mass composition of TeV cosmic rays with HAWC

J. C. Arteaga-Velázquez

In this contribution, we have investigated the energy spectra of the elemental mass groups of cosmic rays for the Light (H+He), medium (C+O) and heavy (Ne-Fe) components using the…

astro-ph.HE2025

Energy-dependent gamma-ray morphology estimation tool in Gammapy

K. Feijen, R. Terrier, B. Khélifi +4

An understanding of the energy dependence of gamma-ray sources can yield important information on the underlying emission mechanisms. However, despite the detection of energy-depen…

astro-ph.HE2025★ 3 cited

Science Prospects for the Southern Wide-field Gamma-ray Observatory: SWGO

SWGO Collaboration, P. Abreu, R. Alfaro +303

Ground-based gamma-ray astronomy is now well established as a key observational approach to address critical topics at the frontiers of astroparticle physics and high-energy astrop…

astro-ph.GA2025★ 2 cited

Cosmic rays, gas and dust in the Central Molecular Zone I -- factors, cosmic-ray densities and dust opacities

H. X. Ren, Q. Remy, S. Ravikularaman +3

Our goal is to estimate the total gas mass in the direction of the Central Molecular Zone (CMZ), quantify the various uncertainties associated, and discuss the implications for the…

astro-ph.HE2025★ 3 cited

Detection of very-high-energy gamma-ray emission from Eta Carinae during its 2020 periastron passage

H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +137

The colliding-wind binary system Carinae has been identified as a source of high-energy (HE, below 100\,GeV) and very-high-energy (VHE, above 100\,GeV) gamma rays i…