International School of Cosmic Ray Astrophysics
14th Course: "Neutrinos and Explosive Events in the Universe"
A NATO Advanced Study Institute
2-13 July 2004
Ettore Majorana Centre
Erice, Sicily, Italy
Topic: Transport of energetic particles in cosmic magnetic fields
Lecturer: V.S. Ptuskin
Most cosmic rays are thought to be accelerated by the shocks of supernova explosions. The observations of nonthermal radiation from supernova remnants testify that the particles are accelerated with high efficiency and in a wide range of energies. We discuss the acceleration of galactic cosmic rays in supernova remnants in a general context of the problem of cosmic-ray origin. The description of the diffusive shock acceleration mechanism and the attendant plasma processes is given. The scenario of cosmic ray acceleration will be probably verified in full details when the data from the new generation of ground-based and space gamma-ray experiments in conjunction with new X-ray satellites will be available.