activity
20182026
most citedA very-high-energy component deep in the Gamma-ray Burst afterglow

274 citations · 1.8k across the 67 of their papers we have counts for

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Showing 2023Show all

9 papers · 1 filter

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,…

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★ 23 cited

The vanishing of the primary emission region in PKS 1510-089

F. Aharonian, F. Ait Benkhali, J. Aschersleben +152

In July 2021, PKS 1510-089 exhibited a significant flux drop in the high-energy gamma-ray (by a factor 10) and optical (by a factor 5) bands and remained in this low state througho…

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.HE2023★ 29 cited

Detection of extended gamma-ray emission around the Geminga pulsar with H.E.S.S

H. E. S. S. Collaboration, :, F. Aharonian +165

Geminga is an enigmatic radio-quiet gamma-ray pulsar located at a mere 250 pc distance from Earth. Extended very-high-energy gamma-ray emission around the pulsar was discovered by…

astro-ph.HE2023★ 29 cited

H.E.S.S. follow-up observations of GRB221009A

H. E. S. S. Collaboration, :, F. Aharonian +159

GRB221009A is the brightest gamma-ray burst ever detected. To probe the very-high-energy (VHE, \!100 GeV) emission, the High Energy Stereoscopic System (H.E.S.S.) began observat…

astro-ph.HE2023★ 7 cited

Detailed Analysis of the TeV γ-Ray Sources 3HWC J1928+178, 3HWC J1930+188, and the New Source HAWC J1932+192

A. Albert, R. Alfaro, C. Alvarez +91

The latest High Altitude Water Cherenkov (HAWC) point-like source catalog up to 56 TeV reported the detection of two sources in the region of the Galactic plane at galactic longitu…