Effect of shocks on interstellar turbulence and cosmic-ray dynamics

Details Effect of shocks on interstellar turbulence and cosmic-ray dynamics Effect of shocks on interstellar turbulence and cosmic-ray dynamics

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.138..341b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 138, no. 2, Nov. 1987, p. 341-354.

Astronomy and Astrophysics

Astrophysics

30

Astronomical Models, Cosmic Rays, Interstellar Matter, Magnetohydrodynamic Turbulence, Molecular Clouds, Shock Wave Propagation, Density Distribution, Diffusion Coefficient, Ion Production Rates, Magnetic Flux, Supernovae

Scientific paper

A theoretical model for the interstellar turbulence is developed. In this model the fluctuation spectrum is formed due to reflection of shocks, produced by supernovae, on interstellar clouds. The spectra of turbulence and the diffusion coefficient of cosmic rays are derived. It is demonstrated that local enhancements of the ionization rate by cosmic rays accelerated by supernova shocks may be responsible for fast renewal of warm ionized envelopes around cores of standard ISM clouds.

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