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

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.