Influence of the source distribution on the age distribution of galactic cosmic rays

Details Influence of the source distribution on the age distribution of galactic cosmic rays Influence of the source distribution on the age distribution of galactic cosmic rays

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....3..222l&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 3 p 222-225 (SEE N85-34862 23-93)

Computer Science

Galactic Radiation, Interstellar Radiation, Secondary Cosmic Rays, Spatial Distribution, Diffusion, Eigenvalues, Extraterrestrial Radiation, Magnetic Fields, Radiative Transfer, Ratios

Scientific paper

The age distribution of galactic cosmic rays in the diffusion approximation is calculated. The influence of the scale height of the spatial source distribution on the mean age of particles arriving at the solar system is discussed. The broader the source distribution with respect to the galactic plane, the longer the mean age. This result provides a natural explanation for the shorter mean age of secondary cosmic rays compared to primary cosmic rays necessary for the understanding of the observed secondary/primary ratio.

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