Cosmic Rays in the Galaxy: Convection or Diffusion?
Abstract
The theory of the self-trapping of cosmic rays in our Galaxy shows that cosmic-ray particles stream steadily away from their sources at a speed given by that of hydromagnetic waves. Random diffusion along magnetic field lines is a comparatively negligible process. A crucial role in confining high-energy cosmic rays is played by the less dense material on the edges of the galactic disk or in the halo.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1971
- DOI:
- 10.1086/151210
- Bibcode:
- 1971ApJ...170..265S