Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...127...97w&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 127, no. 1, Oct. 1983, p. 97-112.
Astronomy and Astrophysics
Astrophysics
40
Cosmic Rays, Magnetohydrodynamic Waves, Oblique Shock Waves, Particle Acceleration, Shock Wave Profiles, Asymptotic Methods, Boltzmann Transport Equation, Gas Pressure, Magnetic Fields, Upstream, Wave Scattering
Scientific paper
The time asymptotic structure of an oblique MHD shock wave significantly modified by the back reaction from diffusive acceleration of cosmic-rays is investigated. In particular, the basic theory previously developed for parallel shocks is generalized to the case where there is a component of the magnetic field transverse to the background fluid velocity. Analytic solutions of the shock structure equation for the case where the upstream thermal gas pressure may be neglected, are obtained. Numerical examples of these latter solutions are given, both for the case of smooth transitions and sub-shock transitions between the upstream and downstream states. Generalizations of the present work, including the mutual interaction between cosmic-rays, background thermal gas, magnetic field and Alfven waves scattering the cosmic-rays are briefly discussed.
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