Precision data from DAMPE, LHAASO, and IceTop for protons, helium, and iron (40 GeV – 500 PeV) are well described by the sum of three components: a low-energy galactic one with a curved spectrum, a high-energy galactic one that creates the PeV knee, and an extragalactic one that dominates above ~100
arXiv:2606.02748v1 · 2026-06-01