Preprint
Aug 2026
Anisotropy-driven constraints on the transition from Galactic to extragalactic cosmic-ray sources
The spatial distribution of the cosmic-ray (CR) flux above $8\,\mathrm{EeV}$ exhibits a significant dipole in agreement with expectations from extragalactic sources following the large-scale structure. At the ankle, the direction changes suddenly and is compatible with the Galactic center for energies $\lesssim4\,\math...
T. Bister, F. Oikonomou, D. Fiorillo
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