Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..801..337o&link_type=abstract
ASTROPHYSICAL SOURCES OF HIGH ENERGY PARTICLES AND RADIATION. AIP Conference Proceedings, Volume 801, pp. 337-344 (2005).
Astronomy and Astrophysics
Astrophysics
1
Cosmic Ray Propagation, Supernova Remnants, Astrophysical Plasma, Plasma Shock Waves, Supernova Remnants, Magnetohydrodynamics And Plasmas
Scientific paper
This paper describes some recent developments in our understanding of cosmic ray acceleration in supernova remnant shocks. It is pointed out that while good agreement now exists as to steady nonlinear modifications to the shock structure, there is also growing evidence that the mesoscopic scales may not in fact be steady and that significant instabilities associated with magnetic field amplification may be a feature of strong collisionless plasma shocks. There is strong observational evidence for such magnetic field amplification, and it appears to solve a number of long-standing issues concerned with acceleration of cosmic rays in supernova remnants.
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