activity
20232026
most citedHigh-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S

20 citations · 23 across the 5 of their papers we have counts for

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Showing astro-ph.HEShow all

14 papers · 1 filter

astro-ph.HE2026

Optical spectroscopy of the VHE flat-spectrum radio quasar PKS 0903-57

E. Kasai, P. Goldoni, C. Boisson +5

We report new optical spectroscopic results for the gamma-ray blazar PKS~090357. The optical properties of this source have historically been complicated to establish, due to a…

astro-ph.HE2026

CtaAgnVar : a Pipeline for Variability Studies with the Cherenkov Telescope Array Observatory

G. Grolleron, J. -P. Lenain, J. Biteau +2

Blazars are active galactic nuclei whose relativistic jet points toward the observer, accelerating particles that radiate across the electromagnetic spectrum. Characterizing their…

astro-ph.HE2026

H.E.S.S. detection of the PSR J0855-4644 nebula

F. Aharonian, H. Ashkar, M. Backes +131

HESS J0852-463 is a TeV γ-ray source located in the Galactic plane. The region consists of a supernova remnant (SNR, RX J0852.0-4622) with a shell-like morphology, commonly referre…

astro-ph.HE20251 cited

Prompt Searches for Very-High-Energy γ-Ray Counterparts to IceCube Astrophysical Neutrino Alerts

J. Abhir, A. Biland, K. Brand +817

The search for sources of high-energy astrophysical neutrinos can be significantly advanced through a multi-messenger approach, which seeks to detect the gamma rays that accompany…

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.HE20255 cited

Combined dark matter search towards dwarf spheroidal galaxies with Fermi-LAT, HAWC, H.E.S.S., MAGIC, and VERITAS

LAT Collaboration, S. Abdollahi, L. Baldini +586

Dwarf spheroidal galaxies (dSphs) are excellent targets for indirect dark matter (DM) searches using gamma-ray telescopes because they are thought to have high DM content and a low…