2011/04/19 by Igor Lebedev, Lebedev, Igor
Medicine · Physics and Astronomy · #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Knee injuries and reconstruction techniques #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.1104.3710
6 pages, 4 figures
arxiv created 2011/04/19 · openalex publication_date 2011/04/19 · arxiv updated 2011/04/20 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28
The energy spectra for five elemental groups (p, He, C, Si, Fe) of cosmic rays, are simulated. Calculations are based on an analysis of superposition of few cosmic ray sources (Supernovae of different types) and principles of diffusive shock acceleration. 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 spectral index γ. Moreover, a kink (increasing γ) in Fe spectrum at energy 2⋅ 1015 eV, is discovered. In order to distinguish from the knee (decreasing γ) the kink can be called an anti-knee (increasing γ).