Fermi acceleration by shock waves

Details Fermi acceleration by shock waves Fermi acceleration by shock waves

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aipc...56..333b&link_type=abstract

In: Particle acceleration mechanisms in astrophysics; Proceedings of the Workshop, La Jolla, Calif., January 3-5, 1979. (A80-532

Astronomy and Astrophysics

Astrophysics

28

Astrophysics, Cosmic Plasma, Particle Acceleration, Shock Fronts, Carrier Injection, Diffusion Coefficient, Nonlinear Systems, Particle Trajectories

Scientific paper

The basic physical ideas underlying the Fermi acceleration of a power-law distribution function at a shock front are examined with a view to generalizing this mechanism for a wider variety of astrophysical environments. Consideration is given to sonic effects, alfvenic effects, diffusion coefficient calculation, nonlinear effects, injection, radiative losses, geometrical effects, and time dependence. It is concluded that a better understanding of the problems of injection and shock moderation is needed before the Fermi acceleration mechanism can be shown to be operating outside the solar system.

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