activity
20082026
most citedHitomi constraints on the 3.5 keV line in the Perseus galaxy cluster

124 citations · 292 across the 14 of their papers we have counts for

collaborators

15 papers

astro-ph.HE2026

Gamma-Ray Constraints on Heavy Axion-Like-Particle Decays from Fermi-LAT and H.E.S.S. Blazar Spectra

A. Acharyya, F. Aharonian, M. Backes +117

The propagation of very-high-energy (VHE; GeV) gamma rays from extragalactic sources is affected by interactions with photons of the extragalactic background light (…

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.HE2023

Multiwavelength Observations of the Blazar PKS~0735+178 in Spatial and Temporal Coincidence with an Astrophysical Neutrino Candidate IceCube-211208A

M. Pohl, K. Mori

We report on multiwavelength target-of-opportunity observations of the blazar PKS 0735+178, located 2.2 degrees away from the best-fit position of the IceCube neutrino event 211208…

astro-ph.HE2023

Multiwavelength Observations of the Blazar PKS 0735+178 in Spatial and Temporal Coincidence with an Astrophysical Neutrino Candidate IceCube-211208A

A. Acharyya, C. B. Adams, A. Archer +207

We report on multiwavelength target-of-opportunity observations of the blazar PKS 0735+178, located 2.2 away from the best-fit position of the IceCube neutrino event IceCub…

astro-ph.HE2023★ 52 cited

Constraints on the intergalactic magnetic field using Fermi-LAT and H.E.S.S. blazar observations

H. E. S. S., Fermi-LAT Collaborations, : +134

Magnetic fields in galaxies and galaxy clusters are believed to be the result of the amplification of intergalactic seed fields during the formation of large-scale structures in th…

astro-ph.HE2022★ 11 cited

Flux Variations of Cosmic Ray Air Showers Detected by LHAASO-KM2A During a Thunderstorm on 10 June 2021

LHAASO Collaboration, F. Aharonian, Q. An +268

The Large High Altitude Air Shower Observatory (LHAASO) has three sub-arrays, KM2A, WCDA and WFCTA. The flux variations of cosmic ray air showers were studied by analyzing the KM2A…