Modelling of an energy spectrum of cosmic rays in the knee region

摘要

Energy spectra for five elemental groups ( p, He, C, Si, Fe) of cosmic rays are simulated. Calculations are based on an analysis of the superposition of a few cosmic ray sources ( supernovae of different types) and principles of diffusive shock acceleration. The results of the analysis in the knee region show that summarizing energy spectra for elemental mass groups of cosmic rays can have significant oscillations of the spectral index.