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Freiburg 2008 – scientific programme

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EP: Fachverband Extraterrestrische Physik

EP 4: The Sun and Heliosphere - Poster Session

EP 4.9: Poster

Monday, March 3, 2008, 17:30–19:00, Vorraum KGI-Aula

Pitch Angle Scattering of Solar Energetic Particles — •Wolfgang Dröge1 and Julia Kartavykh21Institut für Theoretische Physik und Astrophysik, Universität Würzburg, D-97074 Würzburg, Germany — 2Ioffe Physical-Technical Institute, St. Petersburg 194021, Russia

The modeling of solar particle propagation offers the possibility to derive transport coefficients and to test the validity of theories describing the interaction of energetic charged particles with magnetic field fluctuations. Based on numerical solutions of the focused transport equation we present fits to several solar events, with emphasis on a detailed modeling of the particles' angular distributions. We discuss the question whether pitch angle diffusion coefficients calculated from different suggested models and different assumptions about the nature of magnetic fluctuations in the solar wind can lead to measurable differences in observables such as the rigidity dependence of the mean free path and the angular distributions of solar particles.

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