Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory

0577873 - FZÚ 2024 RIV US eng J - Journal Article
Abdul Halim, A. - Abreu, P. - Aglietta, M. - 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 367 authors
Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory.
Journal of Cosmology and Astroparticle Physics. Roč. 2023, č. 5 (2023), č. článku 024. ISSN 1475-7516. E-ISSN 1475-7516
R&D Projects: GA MŠMT LTT18004; GA MŠMT(CZ) EF18_046/0016010; GA MŠMT EF16_013/0001402
Research Infrastructure: AUGER-CZ II - 90102
Institutional support: RVO:68378271
Keywords : cosmic ray experiments * cosmic ray theory * particle acceleration * ultra high energy cosmic rays
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 6.3, year: 2022
Method of publishing: Open access

In this work we present the interpretation of the energy spectrum and mass composition data as measured by the Pierre Auger Collaboration above 6x1017 eV. We use an astrophysical model with two extragalactic source populations to model the hardening of the cosmic-ray flux at around 5x1018 eV (the so-called ankled feature) as a transition between these two components.

Permanent Link: https://hdl.handle.net/11104/0346993