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arXiv:0706.1722 (astro-ph)
[Submitted on 12 Jun 2007]

Title:A kinetic approach to non resonant modes and growth rates of streaming instability: consequences for shock acceleration

Authors:Pasquale Blasi (1,2), Elena Amato (1) ((1) INAF/Osservatorio Astrofisico di Arcetri, (2) INFN, LNGS)
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Abstract: We show here that a purely kinetic approach to the excitation of waves by cosmic rays in the vicinity of a shock front leads to predict the appearance of a non-alfvenic fastly growing mode which is the same that was found by Bell (2004) by treating the plasma in the MHD approximation. The kinetic approach we present is more powerful in that it allows us to investigate different models for the compensation of the cosmic ray current in the background upstream plasma.
Comments: Paper contribution to the 30th International Cosmic Ray Conference, July 2007, Merida, Mexico
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.1722 [astro-ph]
  (or arXiv:0706.1722v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.1722

Submission history

From: Pasquale Blasi [view email]
[v1] Tue, 12 Jun 2007 15:09:06 UTC (29 KB)
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