Ultraheavy nuclei have longer energy loss lengths at ≲300 EeV than lighter nuclei, allowing them to explain UHECRs above 100 EeV from sources like collapsars and neutron star mergers while predicting distinct shower maxima.
arXiv preprint arXiv:2211.02857 , year=
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PUEO will constrain the proton fraction of ultrahigh-energy cosmic rays under strong source evolution and set leading neutrino constraints on ultraheavy dark matter decays and some cosmic string models above 10^19 eV.
Numerical simulations predict gamma-ray and neutrino fluxes from three nearby galaxy clusters that fall below existing observational upper limits.
BL Lacs remain consistent with UHECR observations while FSRQs are disfavoured by anisotropy and source density mismatches after propagation modeling.
citing papers explorer
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Ultraheavy Ultrahigh-Energy Cosmic Rays
Ultraheavy nuclei have longer energy loss lengths at ≲300 EeV than lighter nuclei, allowing them to explain UHECRs above 100 EeV from sources like collapsars and neutron star mergers while predicting distinct shower maxima.
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The Sensitivity of PUEO to Cosmogenic Neutrinos and Exotic Physics Scenarios
PUEO will constrain the proton fraction of ultrahigh-energy cosmic rays under strong source evolution and set leading neutrino constraints on ultraheavy dark matter decays and some cosmic string models above 10^19 eV.
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High-energy Multi-messenger Emission from Galaxy Clusters in the Local Universe
Numerical simulations predict gamma-ray and neutrino fluxes from three nearby galaxy clusters that fall below existing observational upper limits.
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Study of Flat Spectrum Radio Quasars and BL Lacertae Objects as Sources of Diffusive Ultra High-Energy Cosmic Rays
BL Lacs remain consistent with UHECR observations while FSRQs are disfavoured by anisotropy and source density mismatches after propagation modeling.