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On the Cosmic Ray Driven Firehose Instability

Author(s): Scott, R; Reville, B; Spitkovsky, Anatoly

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Abstract: The role of the non-resonant firehose instability in conditions relevant to the precursors of supernova remnant shocks is considered. Using a second order tensor expansion of the Vlasov-Fokker-Planck equation we illustrate the necessary conditions for the firehose to operate. It is found that for very fast shocks, the diffusion approximation predicts that the linear firehose growth rate is marginally faster than its resonant counterpart. Preliminary hybrid MHD-Vlasov-Fokker-Planck simulation results using young supernova relevant parameters are presented.
Publication Date: 4-Jan-2017
Electronic Publication Date: 4-Jan-2017
Citation: Scott, R, Reville, B, Spitkovsky, A. (On the Cosmic Ray Driven Firehose Instability
DOI: 10.1063/1.4807033
Type of Material: Conference Article
Journal/Proceeding Title: AIP Conference Proceedings
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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