Heidelberg 2022 – scientific programme
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EP: Fachverband Extraterrestrische Physik
EP 12: Sun and Heliosphere
EP 12.2: Talk
Friday, March 25, 2022, 11:30–11:45, EP-H1
Determining Pitch-Angle Diffusion Coefficients for Electrons in Whistler Turbulence — •Felix Spanier1, Cedric Schreiner2,3, and Reinhard Schlickeiser4,5 — 1Institut für Theoretische Astrophysik, Universität Heidelberg, Albert-Ueberle-Strasse 2, 69120 Heidelberg — 2Centre for Space Research, Northwest-University, Potchefstroom 2520, South Africa — 3Max-Planck-Institute for Solar System Research, Justus-von-Liebig-Weg 3, 37077 Göttingen, — 4Institut für Theoretische Physik IV, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany — 5Institut für Theoretische Physik und Astrophysik, Christian-Albrechts-Universität zu Kiel, Leibnizstr. 15, 24118 Kiel
Transport of energetic electrons in the heliosphere is governed by resonant interaction with plasma waves, for electrons with sub-GeV kinetic energies specifically with dispersive modes in the whistler regime.
We have performed Particle-in-Cell simulations of kinetic turbulence using parameters similar to those found in the heliosphere. Test-particle electrons are injected into the simulation. The pitch-angle diffusion coefficients of these test particles were analyzed using a novel method.
An analytical model for electron transport in left- and right-handed is derived and the numerical results are compared to this model.