Intermittency of Solar Wind Density Fluctuations From Ion to Electron Scales

Abstract

The intermittency of density fluctuations in the solar wind at kinetic scales has been examined using high time resolution Faraday cup measurements from the Spektr-R spacecraft. It was found that the probability density functions (PDFs) of the fluctuations are highly non-Gaussian over this range, but do not show large changes in shape with scale. These properties are statistically similar to those of the magnetic fluctuations and are important to understanding the dynamics of small scale turbulence in the solar wind. Possible explanations for the behavior of the density and magnetic fluctuations are discussed.

References in corpus (4)

• Small Scale Energy Cascade of the Solar Wind Turbulence
• Simulations of Electron Magnetohydrodynamic Turbulence
• Density Fluctuation Spectrum of Solar Wind Turbulence between Ion and Electron Scales
• On the Rapid Increase of Intermittency in the Near-Dissipation Range of Fully Developed Turbulence

Cited by in corpus (4)

• Recent progress in astrophysical plasma turbulence from solar wind observations
• Fully kinetic versus reduced-kinetic modelling of collisionless plasma turbulence
• Subproton-scale Intermittency in Near-Sun Solar Wind Turbulence Observed by the Parker Solar Probe
• Kinetic plasma turbulence: recent insights and open questions from 3D3V simulations