Observational constraints on cosmic-ray escape from ultrahigh-energy accelerators

0564519 - FZÚ 2023 RIV GB eng J - Článek v odborném periodiku
Luce, Q. … celkem 6 autorů
Observational constraints on cosmic-ray escape from ultrahigh-energy accelerators.
Astrophysical Journal. Roč. 936, č. 1 (2022), č. článku 62. ISSN 0004-637X. E-ISSN 1538-4357
Výzkumná infrastruktura: AUGER-CZ II - 90102
Klíčová slova: ultra-high energy cosmic rays * Pierre Auger Observatory
Obor OECD: Particles and field physics
Impakt faktor: 4.9, rok: 2022
Způsob publikování: Open access

Interactions of ultra-high energy cosmic rays (UHECRs) accelerated in specific astrophysical environments have been shown to shape the energy production rate of nuclei differently from that of the secondary neutrons escaping from the confinement zone. Here, we aim at testing a generic scenario of in-source interactions through phenomenological modeling of the flux and composition of UHECRs. We fit a model in which nucleons and nuclei follow different particle energy distributions to the all-particle energy spectrum and proton spectrum below the ankle energy and distributions of maximum shower depths above this energy, as inferred at the Pierre Auger Observatory.
Trvalý link: https://hdl.handle.net/11104/0336181