Galactic magnetic field time delays for transient UHECR sources induce a spectral cutoff, composition shift to heavier nuclei, and developing dipole anisotropy over ~100 kyr timescales.
Depth of maximum of air-shower profiles at the Pierre Auger Observatory
4 Pith papers cite this work. Polarity classification is still indexing.
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Elemental cosmic ray spectra are described by low-energy Galactic, high-energy Galactic, and extragalactic components with no additional Galactic component needed between 10 PeV and 1 EeV.
A single high-energy neutrino event implies that UHE proton sources must evolve strongly like high-luminosity AGN, but this is disfavored when including null results from other detectors, with proton fraction constrained to about 20% at 20 EeV by composition data.
Review assessing HSP BL Lacs as UHECR and neutrino sources, noting strains from baryonic loading, heavy-nuclei preference in Auger data, and isotropy mismatch with beamed sources.
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High-Synchrotron-Peaked BL Lacs as Multi-Messenger Sources: Connecting Ultra-High-Energy Cosmic Rays and Neutrinos
Review assessing HSP BL Lacs as UHECR and neutrino sources, noting strains from baryonic loading, heavy-nuclei preference in Auger data, and isotropy mismatch with beamed sources.