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arxiv: 1807.11371 · v1 · pith:LZP2XTNBnew · submitted 2018-07-30 · ⚛️ physics.space-ph · astro-ph.GA· physics.plasm-ph

Dependence of Kinetic Plasma Turbulence on Plasma beta

classification ⚛️ physics.space-ph astro-ph.GAphysics.plasm-ph
keywords plasmaturbulencekineticheatingpressureachievingaffectsbeta
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We study the effects of plasma \b{eta} (ratio of plasma pressure to magnetic pressure) on the evolution of kinetic plasma turbulence using fully kinetic particle-in-cell simulations of decaying turbulence. We find that the plasma \b{eta} systematically affects spectra, measures of intermittency, decay rates of turbulence fluctuations, and partitioning over different channels of energy exchange More specifically, an increase in plasma \b{eta} leads to greater total heating, with proton heating preferentially more than electrons. Implications for achieving magnetosheath like temperature ratios are discussed.

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