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arXiv · 2601.22747

Ultra-High Energy Cosmic Rays from the Galactic Center

V. N. Zirakashvili·S. I. Rogovaya
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Abstract

It is shown that Eddington-like accretion event in the Galactic center several million years ago and particle acceleration at accompanying shocks and jets could explain the observed cosmic ray spectrum at energies above 1 PeV. Cosmic ray particles are confined in extended (several hundred kiloparsec in size) Galactic halo. It is shown that the halo magnetic field could be as small as $2\times 10^{-7}$ G for the effective confinement.

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V. N. Zirakashvili, S. I. Rogovaya. 2026-01-30. Ultra-High Energy Cosmic Rays from the Galactic Center. https://doi.org/10.1134/s1063778825601994

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