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

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    0564519 - FZÚ 2023 RIV GB eng J - Journal Article
    Luce, Q. … Total 6 authors
    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
    Research Infrastructure: AUGER-CZ II - 90102
    Keywords : ultra-high energy cosmic rays * Pierre Auger Observatory
    OECD category: Particles and field physics
    Impact factor: 4.9, year: 2022
    Method of publishing: 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.
    Permanent Link: https://hdl.handle.net/11104/0336181

     
     
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