Retrieving "Extragalactic Contributions" from the archives

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1. Galactic Cosmic Rays (gcrs)

   Linked via "extragalactic contributions"

   Origin and Acceleration Mechanisms
   The primary source population for GCRs/) is widely attributed to catastrophic energetic events within the Milky Way galaxy, though extragalactic contributions are hypothesized for the highest energy components.
   Supernova Remnants (SNRs)