A search for photons with energies above 2 × 10.sup.17./sup.eV using hybrid data from the low-energy extensions of the Pierre Auger Observatory

0562787 - FZÚ 2023 RIV GB eng J - Journal Article
Abreu, A. - Aglietta, M. - Albury, J.M. - Bakalová, Alena - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Hamal, Petr - Janeček, Petr - Juryšek, Jakub - Mandát, Dušan - Müller, Ana Laura - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - dos Santos, Eva M. Martins - Schovánek, Petr - Tobiška, Petr - Trávníček, Petr - Vícha, Jakub - Yushkov, Alexey … Total 367 authors
A search for photons with energies above 2 × 10¹⁷eV using hybrid data from the low-energy extensions of the Pierre Auger Observatory.
Astrophysical Journal. Roč. 933, č. 2 (2022), č. článku 125. ISSN 0004-637X. E-ISSN 1538-4357
R&D Projects: GA MŠMT LTT18004; GA MŠMT LM2015038; GA MŠMT(CZ) EF18_046/0016010; GA MŠMT EF16_013/0001402
Grant - others:OP VVV - AUGERII.CZ(XE) CZ.02.1.01/0.0/0.0/18_046/0016010; OP VVV - AUGER-CZ(XE) CZ.02.1.01/0.0/0.0/16_013/0001402
Research Infrastructure: AUGER-CZ II - 90102
Institutional support: RVO:68378271
Keywords : Pierre Auger Observatory * ultra-high-energy photons * cosmic-ray * Low-Energy Extensions
OECD category: Particles and field physics
Impact factor: 4.9, year: 2022
Method of publishing: Open access

Ultra-high-energy photons with energies exceeding 10(17) 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 10(15) eV range further motivate searches for even higher-energy photons. In this paper, we present a search for photons with energies exceeding 2 x 10(17) 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 10(17) and 10(18) eV.
Permanent Link: https://hdl.handle.net/11104/0335733