Cosmic Ray Production in the Supernova Remnants with Account of Reacceleration: Secondary to Primary Ratio

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Scientific paper

Cosmic ray (CR) spectra produced in supernova remnants are calculated on the basis of the nonlinear kinetic model. This includes reacceleration of background galactic cosmic rays (GCRs) and spallation of CR nuclei due to collisions with the gas nuclei, together with the injection and subsequent acceleration of suprathermal particles from the postsho ck thermal po ol. It is shown that GCR reacceleration and CR spallation produce a measurable effect esp ecially in the secondary to primary ratio, making its energy dependence considerably flatter at high energies compared with the predictions of the standard model.

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