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TWO-DIMENSIONAL PARTICLE-IN-CELL SIMULATIONS OF THE NONRESONANT, COSMIC-RAY-DRIVEN INSTABILITY IN SUPERNOVA REMNANT SHOCKS

Abstract:

In supernova remnants, the nonlinear amplification of magnetic fields upstream of collisionless shocks is essential for the acceleration of cosmic rays to the energy of the "knee" at 1015.5 eV. A nonresonant instability driven by the cosmic ray current is thought to be responsible for this effect. We perform two-dimensional, particle-in-cell simulations of this instability. We observe an initial growth of circularly polarized nonpropagating magnetic waves as predicted in linear theory. It is ...

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Publication status:
Published

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Publisher copy:
10.1088/0004-637X/698/1/445

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
Publisher:
Institute of Physics Publishing
Journal:
ASTROPHYSICAL JOURNAL
Volume:
698
Issue:
1
Pages:
445-450
Publication date:
2009-06-10
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
Source identifiers:
158486
Language:
English
Keywords:
Pubs id:
pubs:158486
UUID:
uuid:87abc0e3-f642-4eca-b541-625fbdc79d07
Local pid:
pubs:158486
Deposit date:
2012-12-19

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