Abstract
The observed spectra of CRs depend on two basic processes: the acceleration in the astrophysical sources and the propagation in the interstellar medium (ISM) of our Galaxy, described here. It is necessary to study first the latter (the propagation) in order to better understand the physics of acceleration mechanisms, subject of Chap. 6.
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Notes
- 1.
“Spallation” refers to inelastic nuclear reactions that occur when energetic particles interact with an atomic nucleus. Cosmic ray physicists usually refer to reactions induced by cosmic rays as “fragmentation”. For our practical purposes, the two words are synonymous.
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Spurio, M. (2015). Diffusion of Cosmic Rays in the Galaxy. In: Particles and Astrophysics. Astronomy and Astrophysics Library. Springer, Cham. https://doi.org/10.1007/978-3-319-08051-2_5
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