2006/02/26 by P. J. Kellogg, S. D. Bale, F. S. Mozer +2 · 4 citations
Engineering · Physics and Astronomy · #Fluid dynamics and aerodynamics studies #Quantum and Classical Electrodynamics #Solar and Space Plasma Dynamics #physics.space-ph
paper · pdf · doi:10.1086/499265
arxiv created 2006/02/26 · openalex publication_date 2006/07/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
Measurements of fluctuations of electric fields in the frequency range from a fraction of 1 to 12.5 Hz are presented and corrected for the Lorentz transformation of magnetic fluctuations to give the electric fields in the plasma frame. The electric fields are large enough to provide the dominant force on the ions of the solar wind in the region near the ion cyclotron frequency of protons, larger than the force due to magnetic fluctuations. They provide sufficient velocity-space diffusion or heating to counteract conservation of magnetic moment in the expanding solar wind to maintain nearly isotropic velocity distributions.