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Stuttgart 2012 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 6: Sonne und Heliosphäre I

EP 6.7: Vortrag

Mittwoch, 14. März 2012, 15:30–15:45, V55.21

Modelling superdiffusion of energetic particles using a fractional Fokker-Planck equation — •Robin Stern, Horst Fichtner, and Frederic Effenberger — Ruhr-Universität, Bochum, Germany

In recent years in-situ measurement with various spacecraft like ACE or Ulysses have revealed that the heliospheric transport of energetic electrons and protons cannot always be characterised as normal diffusion. The observations -- particularly analyses of time profiles -- rather suggest a superdiffusive behaviour of these particles. After a brief presentation of anomalous transport and its theoretical treatment, first numerical solutions of a correspondingly modified transport equation and their comparison to data will be discussed.

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