activity
20022026
most citedRevealing x-ray and gamma ray temporal and spectral similarities in the GRB 190829A afterglow

172 citations · 1.7k across the 76 of their papers we have counts for

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Showing astro-ph.HEShow all

42 papers · 1 filter

astro-ph.HE2026

Constraints on the magnetic field in the hadronic scenario for the origin of the radio halo in the A1795 galaxy cluster

P. Marchegiani, V. Vacca, F. Loi +2

The radio halo in the cool-core galaxy cluster, A1795, has recently been proposed to be of hadronic origin, because it extends on megaparsec scales, where no turbulence is expected…

astro-ph.HE2026

H.E.S.S. observations of composite Seyfert-starburst galaxies

H. E. S. S. Collaboration, A. Acharyya, F. Aharonian +119

Context: Composite galaxies that contain both Seyfert and starburst components may produce very high-energy (VHE; >100 GeV) gamma-ray emission at a wide range of spatial scales, fr…

astro-ph.HE2025★ 5 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…

astro-ph.HE2024★ 60 cited

Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433

F. Aharonian, F. Ait Benkhali, J. Aschersleben +161

SS 433 is a microquasar, a stellar binary system with collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.), finding a…

astro-ph.HE2023★ 31 cited

Discovery of a Radiation Component from the Vela Pulsar Reaching 20 Teraelectronvolts

The H. E. S. S. Collaboration, :, F. Aharonian +178

Gamma-ray observations have established energetic isolated pulsars as outstanding particle accelerators and antimatter factories in the Galaxy. There is, however, no consensus rega…

astro-ph.HE2023

The peculiar new state of the blazar PKS 1510-089

H. M. Schutte, M. Zacharias, M. Böttcher +4

Contemporaneous multiwavelength observations with H.E.S.S., SALT, Fermi-LAT, Swift, and ATOM show that the blazar PKS 1510-089 suffered a significant decrease in its optical flux,…