Physics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....3...50m&link_type=abstract
In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 3 p 50-53 (SEE N85-34862 23-93)
Physics
Cosmic Ray Showers, Galactic Cosmic Rays, Galactic Structure, Hydrogen Clouds, Inhomogeneity, Interstellar Space, Molecular Clouds, Nuclear Interactions, Secondary Cosmic Rays, Shock Waves, Supernova Remnants, Topology, Abundance, Galactic Radiation, Gamma Ray Bursts, Heavy Nuclei, Magnetohydrodynamic Waves, Space Density
Scientific paper
The consequencies of diffusive acceleration of cosmic rays in supernova shocks propagation through an inhomogeneous interstellar medium are explored. The acceleration takes place in the hot, tenuous, intercloud gas, while nuclear collisions, leading to the production of cosmic ray secondaries, predominantly occur in those regions where the supernova shocks collide with interstellar clouds. A simple model is used to calculate the interaction of a (cosmic ray + gas) shock with a cloud, and thus determine the gross topology. Extending this to the whole system, using mean cloud sizes and space densities, allows us to calculate the secondary/primary cosmic ray abundance ratios for light and heavy nuclei.
Luest R.
Meyer Pascal
Morfill Gregor E.
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