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Cosmic-ray tracing

Active galactic nuclei are firm favourites to be revealed as the source of cosmic rays, but solid evidence has proven elusive. A model taking both local and global nuclei propagation into account may help to close the deal.

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Fig. 1: The two-step propagation scenario for the generation of cosmic rays from an active galactic nucleus located in a cluster (not to scale).


  1. 1.

    Fang, K. & Murase, K. Nat. Phys. (2018).

  2. 2.

    Linsley, J. Phys. Rev. Lett. 10, 146–148 (1963).

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Correspondence to Julia Becker Tjus.

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Becker Tjus, J. Cosmic-ray tracing. Nature Phys 14, 333–334 (2018).

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