Distributed Acceleration of Cosmic Rays
R. SilberbergE. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375C. H. TsaoE. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375J. R. LetawE. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375Moshe ShapiroE. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375
ABI
Аннотация
It is proposed that the acceleration of cosmic rays is distributed over their propagation through interstellar space. Thus after most nuclear fragmentation reactions in the interstellar medium, cosmic rays gain about a factor of 5 in energy. This hypothesis resolves several discrepancies in composition at different energies. The present results suggest that after the principal acceleration and during their galactic confinement, cosmic rays are further accelerated by the weak shocks of widely distributed old supernova remnants.
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