Issue A&A Volume 458, Number 1, October IV 2006 Page(s) 1 - 5 Section Astrophysical processes DOI 10.1051/0004-6361:20065108

A&A 458, 1-5 (2006)
DOI: 10.1051/0004-6361:20065108

Three component model of cosmic ray spectra from 10 GeV to 100 PeV

V. I. Zatsepin and N. V. Sokolskaya

Skobeltsyn Institute of Nuclear Physics, Moscow State University, Russia
    e-mail: viza@dec1.sinp.msu.ru

(Received 28 February 2006 / Accepted 21 April 2006)

Abstract
Aims.A model to describe cosmic ray spectra in the energy region from 10¹⁰ to 10¹⁷ eV is suggested based on the assumption that Galactic cosmic ray flux is a mixture of fluxes accelerated by shocks from nova and supernova of different types.
Methods.We analyze recent experimental data on cosmic ray spectra obtained in direct measurements above the atmosphere and data obtained with ground extensive air shower (EAS) arrays.
Results.The model of the three classes of cosmic ray sources is consistent with direct experimental data on cosmic ray elemental spectra and gives a smooth transition from the all particle spectrum measured in the direct experiments to the all particle spectrum measured with EAS.

Key words: cosmic rays -- ISM: supernova remnants -- ISM: abundances

© ESO 2006

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