Details

Autor(en) / Beteiligte

• Schure, K. M.
• Bell, A. R.
• O’C Drury, L.
• Bykov, A. M.

Titel

Diffusive Shock Acceleration and Magnetic Field Amplification

Ist Teil von

• Space science reviews, 2012-11, Vol.173 (1-4), p.491-519

Ort / Verlag

Dordrecht: Springer Netherlands

Erscheinungsjahr

2012

Quelle

SpringerLink (Online service)

Beschreibungen/Notizen

• Diffusive shock acceleration is the theory of particle acceleration through multiple shock crossings. In order for this process to proceed at a rate that can be reconciled with observations of high-energy electrons in the vicinity of the shock, and for cosmic rays protons to be accelerated to energies up to observed galactic values, significant magnetic field amplification is required. In this review we will discuss various theories on how magnetic field amplification can proceed in the presence of a cosmic ray population. On both short and long length scales, cosmic ray streaming can induce instabilities that act to amplify the magnetic field. Developments in this area that have occurred over the past decade are the main focus of this paper.