A Search for Photons with Energies Above 2 × 1017 eV Using Hybrid Data from the Low-Energy Extensions of the Pierre Auger Observatory

The Pierre Auger Collaboration

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Samenvatting

Ultra-high-energy photons with energies exceeding 1017 eV offer a wealth of connections to different aspects of cosmic-ray astrophysics as well as to gamma-ray and neutrino astronomy. The recent observations of photons with energies in the 1015 eV range further motivate searches for even higher-energy photons. In this paper, we present a search for photons with energies exceeding 2 × 1017 eV using about 5.5 yr of hybrid data from the low-energy extensions of the Pierre Auger Observatory. The upper limits on the integral photon flux derived here are the most stringent ones to date in the energy region between 1017 and 1018 eV.
Originele taal-2English
Artikelnummer125
Aantal pagina's11
TijdschriftApJ
Volume933
Nummer van het tijdschrift2
DOI's
StatusPublished - 22 aug. 2022

Bibliografische nota

Funding Information:
The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are very grateful to the following agencies and organizations for financial support:

Publisher Copyright:
© 2022. The Author(s). Published by the American Astronomical Society.

Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.

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