Abstract Current experimental data provides constraints upon the nuclear excitation functions for and their progenitors. These cross sections, combined with the elemental and isotopic ratios measured at Earth, are used in a complete model of cosmic ray propagation to study the source composition. The ratio in the cosmic ray source matter is appreciably less than its value in the solar system, while the source ratio is in agreement with solar system or local galactic material but not with matter near the galactic center.
Nuclear fragmentation cross sections and cosmic-ray source abundances
Advances in Space Research ; 4 , 2-3 ; 93-96
1984-01-01
4 pages
Article (Journal)
Electronic Resource
English
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