The cosmic ray energy spectrum measured with the Pierre Auger Observatory

0578419 - FZÚ 2024 RIV NL eng J - Journal Article
Abdul Halim, A. - Abreu, P. - Aglietta, M. - Fenu, F. - Bakalová, Alena - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Hamal, Petr - Janeček, Petr - Juryšek, Jakub - Majerčáková, Margita - Mandát, Dušan - Müller, Ana Laura - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - dos Santos, Eva M. Martins - Schovánek, Petr - Stadelmaier, Maximilian Klaus - Tobiška, Petr - Trávníček, Petr - Vícha, Jakub - Yushkov, Alexey … Total 374 authors
The cosmic ray energy spectrum measured with the Pierre Auger Observatory.
Advances in Space Research. Roč. 72, č. 8 (2023), s. 3531-3537. ISSN 0273-1177. E-ISSN 1879-1948
R&D Projects: GA MŠMT LTT18004; GA MŠMT EF16_013/0001402; GA MŠMT(CZ) EF18_046/0016010
Research Infrastructure: AUGER-CZ II - 90102
Institutional support: RVO:68378271
Keywords : Cosmic rays * energy spectrum * Pierre Auger Observatory
OECD category: Particles and field physics
Impact factor: 2.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.asr.2023.06.020

In this contribution, we present the latest updates on the energy spectrum characterization obtained with data from the Pierre Auger Observatory. We present the measurement of the spectrum from 6 x 1015 eV up to above 1020 eV, obtained by combining five different methods. The exposure of over 80,000 km2 sr yr has been accumulated above the ankle region, making this the best estimate of the spectrum ever achieved in this energy range. The wide zenith angle range covered by the Pierre Auger Observatory and the enormous exposure also allow us to measure the spectrum in different regions of the sky. After a description of the techniques used to reconstruct the spectrum, the spectral features will be presented, and the astrophysical implications of the spectral shape will be briefly discussed.
Permanent Link: https://hdl.handle.net/11104/0347422