Declination dependence of the cosmic-ray flux at extreme energies
D. S. Gorbunov, S. V. Troitsky
Abstract
We study the large-scale distribution of the arrival directions of the highest energy cosmic rays observed by various experiments. Despite clearly insufficient statistics, we find a deficit of cosmic rays at energies higher than 1020 eV from a large part of the sky around the celestial North Pole. We speculate on possible explanations of this feature.
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