The dissipation of solar wind turbulent fluctuations at electron scales

Abstract

We present two-dimensional fully-kinetic Particle-in-Cell simulations of decaying electromagnetic fluctuations. The computational box is such that wavelengths ranging from electron to ion gyroradii are resolved. The parameters used are realistic for the solar wind, and the ion to electron mass ratio is physical. The understanding of the dissipation of turbulent fluctuations at small scales is thought to be a crucial mechanism for solar wind acceleration and coronal heating. The computational results suggest that a power law cascade of magnetic fluctuations could be sustained up to scales of the electron Larmor radius and smaller. We analyse the simulation results in the light of the Vlasov linear theory, and we comment on the particle heating. The dispersion curves of lightly damped modes in this regime suggest that a linear mechanism could be responsible for the observed steepening of power spectra at electron scales, but a straightforward identification of turbulent fluctuations as an ensemble of linear modes is not possible

arXiv commentto appear in Astrophysical Journal

References in corpus (10)

• Universality of solar wind turbulent spectrum from MHD to electron scales
• A Model of Turbulence in Magnetized Plasmas: Implications for the Dissipation Range in the Solar Wind
• Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas
• Anisotropy of Solar Wind Turbulence between Ion and Electron Scales
• Contribution of cyclotron-resonant damping to kinetic dissipation of interplanetary turbulence
• Kinetic dissipation and anisotropic heating in a turbulent collisionless plasma
• Multi-scale Hall-MHD turbulence in the solar wind
• A Kinetic Alfven wave cascade subject to collisionless damping cannot reach electron scales in the solar wind at 1 AU
• Cascade and Damping of Alfvén-Cyclotron Fluctuations: Application to Solar Wind Turbulence Spectrum
• Non-modal approach to linear theory: marginal stability and the dissipation of turbulent fluctuations

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