University of Cambridge > > DAMTP Astro Mondays > Electron Transport, Acceleration and Loss in the Outer Radiation Belt

Electron Transport, Acceleration and Loss in the Outer Radiation Belt

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If you have a question about this talk, please contact Callum William Fairbairn.

The flux of relativistic electrons in Earth’s radiation belts is highly variable, fluctuating over orders of magnitude within hours. In particular, the flux at the outer edge of the magnetosphere may undergo rapid and sustained losses due to magnetopause motion. Forecasting the behaviour of the radiation belts is important in order to predict the risk posed to satellites by high energy particles. We use a three-dimensional diffusion model based on the Focker-Planck equation to model phase-averaged phase space electron densities to investigate the behaviour of the outer radiation belt. We investigate the accuracy of a last closed drift shell model in predicting electron fluxes near the magnetopause, with the eventual aim of using this model to replace the data-driven outer boundary of the diffusion model.

This talk is part of the DAMTP Astro Mondays series.

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