Closing in on the sources of Galactic and extragalactic cosmic rays

Francis Halzen

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arXiv · 0809.1874

Closing in on the sources of Galactic and extragalactic cosmic rays

Francis Halzen

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Abstract

We speculate that a new generation of particle astrophysics instrumentation will reveal the enigmatic sources of cosmic rays prior to the one hundredth anniversary of their discovery by Hess in 1912. While only a "smoking gun'' is missing for the case that the galactic component of the cosmic ray spectrum originates in supernova remnants, deciphering the origin of the extragalactic component is still at a level of reading tea leaves.

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Francis Halzen. 2008-09-10. Closing in on the sources of Galactic and extragalactic cosmic rays. https://arxiv.org/abs/0809.1874

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