1990•AIP conference proceedingsRequires access

Origin of high energy galactic cosmic rays

T. K. Gaisser

Abstract

In this talk I discuss two problems in high energy particle astrophysics, the flux of cosmic ray antiprotons and the chemical composition in the region of the ‘‘knee’’ of the cosmic ray energy spectrum (∼1015 eV). Both are rather poorly known at present, yet they have great potential for informing us about the sources, acceleration and propagation of high energy cosmic radiation.

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Key concepts: Cosmic ray, Physics, Ultra-high-energy cosmic ray, PAMELA detector, Astrophysics, Flux (metallurgy), Acceleration, Energy spectrum