Closing in on the sources of Galactic and extragalactic cosmic rays

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

References in corpus (4)

• Ultra-high energy Neutrinos from Centaurus A and the Auger hot spot
• Dissecting the Cygnus Region with TeV Gamma Rays and Neutrinos
• Neutrinos from Auger Sources
• Detection of TeV Gamma-Rays from the BL Lac 1ES1959+650 in its low states and during a major outburst in 2002