The acceleration of cosmic rays in shock fronts - I

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ID: 290483
1978
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Abstract
It is shown that charged particles can be accelerated to high energies in astrophysical shock fronts. Fast particles are prevented from streaming away upstream of a shock front by scattering off Alfvén waves which they themselves generate. This scattering confines the particles to the region around the shock and results in first-order Fermi acceleration due to the particles crossing the shock many times. The consequent energy spectrum is a power law with an index close to that observed for galactic cosmic rays. The discussion relates to particles which are already relativistic, and their initial acceleration from thermal energies is not considered.
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openalex_W1989756559 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors A. R. Bell
Journal monthly notices of the royal astronomical society
Year 1978
DOI
10.1093/mnras/182.2.147
URL
https://academic.oup.com/mnras/article-pdf/182/2/147/3710138/mnras182-0147.pdf
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