GRB observations with H.E.S.S.
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Date
2019Author
Piel, Quentin
Böttcher, Markus
Arcaro, Cornelia
Ashkar, Halim
Bissaldi, Elisabetta
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Show full item recordAbstract
Fermi-LAT observations have proven that GeV γ-ray emission is a relatively common feature for
many Gamma Ray Bursts (GRB). However the low effective area of space detectors implies low
statistics for high-energy photons which prevent any physical interpretation at such energy range.
The current generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) arrays of > 104
m2
effective area above a few tens of GeV is able to detect higher-energy photons.
The High Energy Stereoscopic System (H.E.S.S.) is one of the current generation of IACTs. The
large light collection area of the largest telescope and its fast slewing make it perfectly suitable
to observe γ rays below 100 GeV with an unprecedented sensitivity. Several tens of GRBs have
been observed since 2007. This contribution is about the results of this large sample of observation
above a few tens of GeV