On the cosmic ray driven firehose instability

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    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 it's resonant counterpart. Preliminary hybrid MHD-Vlasov-Fokker-Planck simulation results using young supernova relevant parameters are presented.

    DOI

    Original languageEnglish
    Title of host publicationHigh Energy Gamma-Ray Astronomy: 6th International Meeting on High Energy Gamma-Ray Astronomy
    PublisherAmerican Institute of Physics Inc.
    Volume1792
    ISBN (Electronic)9780735414563
    DOIs
    StatePublished - 04 Jan 2017
    Event6th International Symposium on High Energy Gamma-Ray Astronomy - Heidelberg, Germany
    Duration: 11 Jul 201615 Jul 2016

    Conference

    Conference6th International Symposium on High Energy Gamma-Ray Astronomy
    CountryGermany
    CityHeidelberg
    Period11/07/201615/07/2016

    ID: 130993001