Closing in on the sources of Galactic and extragalactic cosmic rays
arXiv:0809.1874
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.
Written in celebration of the 75th birthdays of Frank Avignone and Ettore Fiorini and in memory of the 75th birthday of the late Peter Rosen
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