Cosmic rays in the diffusion model with a large halo

Details Cosmic rays in the diffusion model with a large halo Cosmic rays in the diffusion model with a large halo

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976afz....12..129p&link_type=abstract

Astrofizika, vol. 12, Feb. 1976, p. 129-138. In Russian.

Astronomy and Astrophysics

Astronomy

1

Cosmic Rays, Diffusion Coefficient, Galactic Radiation, Interstellar Gas, Anisotropy, Bessel Functions, Chemical Composition, Fourier Transformation

Scientific paper

The paper examines the propagation of the proton-nuclear cosmic-ray component in the Galaxy with a halo size of 15 kpc. The chemical composition (secondary-nucleus abundance), anisotropy, and total output of cosmic-ray sources are calculated. It is assumed that the interstellar gas is concentrated in the galactic disk, that particle diffusion is isotropic, and that the diffusion coefficients in the halo and disk are different. It is found that the ratio of the halo to disk diffusion coefficients should be about 5 to 100 if cosmic-ray sources are uniformly distributed in the disk and that this ratio should be about 30 to 300 if the sources occupy the central region of the Galaxy.

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