12–23 Jul 2021
Online
Europe/Berlin timezone

The Theory of Efficient Particle Acceleration at Shocks

16 Jul 2021, 12:00
1h 30m
03

03

Talk CRI | Cosmic Ray Indirect Discussion

Speaker

Damiano Caprioli (University of Chicago)

Description

The recent discoveries in the theory of diffusive shock acceleration (DSA) that originate from first-principle kinetic plasma simulations are discussed. We show that, 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 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 supernova remnant SN1006.

Keywords

Particle acceleration, supernova remnants, diffusive shock acceleration

Subcategory Theoretical Results

Primary authors

Damiano Caprioli (University of Chicago) Dr Colby Haggerty (Institute for Astronomy, University of Hawaii ) Prof. Pasquale Blasi (Gran Sasso Science Institute)

Presentation materials