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