264 research outputs found
Particle Spectra and Mass Composition in the Ultra-High Energy Region in the Framework of the Galactic Origin of Cosmic Rays
The possibility for a self-consistent description of all the basic features
of the observed cosmic ray spectra and primary composition variations in the
energy range of eV within the Galactic origin scenario is
examined.
We assume the existence of Galactic sources that accelerate particles up to
eV and take into account a highly inhomogeneous
(fractal-like) distribution of matter and magnetic fields in the Galaxy that
leads to extremely large free paths of particles ("L\'{e}vy flights"), along
with an overwhelming contribution to the cosmic ray fluxes observed above eV from particles reaching the Solar System without scattering. Our
scenario was refined on the basis of recent experimental results on primary
mass composition. Model predictions, which could be verified with the improved
high-precision measurements in the nearest future are discussed.Comment: 5 pages, 2 figures, 19th International Symposium on Very High Energy
Cosmic Ray Interactions (22-27 August 2016). Moscow, Russia. P.N. Lebedev
Physical Institute of the Russian Academy of Sciences (LPI RAS
- …