Conference proceeding
The issue with diffusive shock acceleration
Pos : proceedings of science, Vol.358
2019
DOI: 10.22323/1.358.0209
Abstract
We discuss the recent developments in the theory of diffusive shock acceleration (DSA) by using both first-principle kinetic plasma simulations and analytical theory based on the solution of the convection/diffusion equation.
In particular, we show how simulations reveal that the spectra of accelerated particles are significantly steeper than the E−2 predicted by the standard theory of DSA for strong shocks, in agreement with several observational pieces of evidence.
We single out which standard assumptions of test-particle and non-linear DSA are violated in the presence of strong (self-generated) magnetic turbulence and put forward a novel theory in better agreement with the particle spectra inferred with multi-wavelength observations of young SN remnants, radio-SNe, and Galactic cosmic rays.
Details
- Title: Subtitle
- The issue with diffusive shock acceleration
- Creators
- Damiano Caprioli - University of ChicagoColby Haggerty - University of Chicago
- Resource Type
- Conference proceeding
- Publication Details
- Pos : proceedings of science, Vol.358
- DOI
- 10.22323/1.358.0209
- ISSN
- 1824-8039
- eISSN
- 1824-8039
- Language
- English
- Date published
- 2019
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9985224321502771
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