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Spectra of cosmic-ray protons and nuclei from 1010 to 1020 eV within the galactic origin scenario of cosmic rays

Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

Results from calculating the cosmic ray energy spectrum within the Galactic origin scenario are presented. Key elements of the approach are the assumed existence of Galactic sources that accelerate particles up to ∼1011 GeV and a highly inhomogeneous (fractal type) distribution of matter and magnetic fields in the Galaxy that leads to large free paths for particles (Levy flights), along with an overwhelming contribution to the cosmic ray fluxes observed in the energy range of 109–1011 GeV from particles reaching the Solar System without scattering. It is shown that the proposed scenario allows us to describe the main features of the observed cosmic ray spectrum from 1010 to 1020 eV. The behavior of the cosmic ray mass composition in the ultra-high energy region is discussed.

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Correspondence to A. A. Lagutin.

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Original Russian Text © A.A. Lagutin, A.G. Tyumentsev, N.V. Volkov, R.I. Raikin, 2015, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2015, Vol. 79, No. 3, pp. 354–357.

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Lagutin, A.A., Tyumentsev, A.G., Volkov, N.V. et al. Spectra of cosmic-ray protons and nuclei from 1010 to 1020 eV within the galactic origin scenario of cosmic rays. Bull. Russ. Acad. Sci. Phys. 79, 322–325 (2015). https://doi.org/10.3103/S1062873815030351

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  • DOI: https://doi.org/10.3103/S1062873815030351

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