activity
20082025
most citedConstraints on axionlike particles with H.E.S.S. from the irregularity of the PKS 2155-304 energy spectrum

165 citations · 1.1k across the 20 of their papers we have counts for

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Showing 2016Show all

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astro-ph.HE2016★ 50 cited

Characterizing the gamma-ray long-term variability of PKS 2155-304 with H.E.S.S. and Fermi-LAT

H. E. S. S. Collaboration, H. Abdalla, A. Abramowski +244

Studying the temporal variability of BL Lac objects at the highest energies provides unique insights into the extreme physical processes occurring in relativistic jets and in the v…

astro-ph.HE2016★ 20 cited

Extended VHE gamma-ray emission towards SGR1806-20, LBV1806-20, and stellar cluster Cl*1806-20

H. Abdalla, A. Abramowski, F. Aharonian +241

Using the High Energy Spectroscopic System (H.E.S.S.) telescopes we have discovered a steady and extended very high-energy (VHE) gamma-ray source towards the luminous blue variable…