The Theory of Efficient Particle Acceleration at Shocks
High Energy Astrophysical Phenomena
2022-09-21 v2 Plasma Physics
Space Physics
Abstract
The recent discoveries in the theory of diffusive shock acceleration (DSA) that stem from first-principle kinetic plasma simulations are discussed. When ion acceleration is efficient, the back-reaction of non-thermal particles and self-generated magnetic fields becomes prominent and leads to both enhanced shock compression and particle spectra significantly softer than those predicted by the standard test-particle DSA theory. These results are discussed in the context of the non-thermal phenomenology of astrophysical shocks, with a special focus on the remnant of SN1006.
Keywords
Cite
@article{arxiv.2111.10629,
title = {The Theory of Efficient Particle Acceleration at Shocks},
author = {Damiano Caprioli and Colby Haggerty and Pasquale Blasi},
journal= {arXiv preprint arXiv:2111.10629},
year = {2022}
}
Comments
8 pages, 2 figures, Proceedings of 37th International Cosmic Ray Conference (ICRC2021) ; https://pos.sissa.it/395/482