Particle acceleration in supernova remnants

Details Particle acceleration in supernova remnants Particle acceleration in supernova remnants

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ppcf...51l4004b&link_type=abstract

Plasma Physics and Controlled Fusion, Volume 51, Issue 12, pp. 124004 (2009).

Physics

Plasma Physics

2

Scientific paper

Supernova remnants (SNR) are the most likely source of galactic cosmic rays (CRs) up to the 'knee' in the spectrum at a few PeV. The theory of diffusive shock acceleration nicely supplies a power law energy distribution with approximately the desired spectral index and with suitably high efficiency. For a SNR blast wave expanding into a typical interstellar magnetic field the predicted maximum CR energy falls short of 1 PeV, but a non-resonant plasma instability allows the CRs themselves to amplify the magnetic field by orders of magnitude to a level capable of accelerating CRs to the knee.

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