The modification of relativistic shock fronts by accelerated particles

Details The modification of relativistic shock fronts by accelerated particles The modification of relativistic shock fronts by accelerated particles

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...241..329b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 241, no. 1, Jan. 1991, p. 329-342.

Astronomy and Astrophysics

Astrophysics

11

Cosmic Rays, Magnetohydrodynamic Flow, Relativistic Effects, Shock Waves, Transport Theory, Equations Of State, Ideal Gas, Perturbation Theory

Scientific paper

The number and type of stationary one-dimensional shock transitions which are permitted in a hydrodynamical system containing energetic particles (CRs) are studied. Arbitrary fluid velocities are permitted and the properties of the background by a constant ratio of specific heats are described. Utilizing a Coroniti perturbation methodology it is shown that there can be no expansion or compression of the fluid downstream of a subshock, assuming that the downstream speed is nonrelativistic. It is confirmed that the acceleration efficiency is low for nonrelativistic flows unless they are of small Mach number and it is found that relativistic flows are much more efficient accelerators in general.

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