Speaker
Description
Often, for different astro- and space physics applications, a Fokker-Planck type diffusion-convection equation must be solved to obtain the particle distribution function. The complexity of the problem generally requires a numerical solution in multiple dimensions. In this talk we discuss the use of stochastic differential equations (SDEs) to numerically integrate the 5D (three spatial dimensions, energy, and time) Parker transport equation for cosmic rays propagating through the turbulent interplanetary medium. We introduce this numerical approach and focus on the so-called time-backward approach which is much more efficient for certain test-particle applications. Selected results are presented where we emphasise the ability of the SDE approach to provide additional insight into the physics of particle transport.
Level for award;(Hons, MSc, PhD, N/A)?
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