Now showing items 1-4 of 4

    • Modeling the modulation of galactic and jovian electrons by stochastic processes 

      Kopp, Andreas; Potgieter, Marthinus Steenkamp; Strauss, Roelf Du Toit; Büsching, Ingo (IOP Publishing, 2011)
      We present a newly developed numerical modulation model to study the transport of galactic and Jovian electrons in the heliosphere. The model employs stochastic differential equations (SDEs) to solve the corresponding ...
    • Modelling the stellar soft-photon energy density of globular clusters 

      Prinsloo, Phillip L.; Venter, Christo; Busching, Ingo; Kopp, Andreas (South African Institute of Physics, 2014)
      Recent observations by e.g. Fermi LAT and H.E.S.S. have revealed globular clusters to be sources of high-energy and very-high-energy gamma rays. It has been suggested that the presence of large numbers of millisecond pulsars ...
    • On the propagation times and energy losses of cosmic rays in the heliosphere 

      Kopp, Andreas; Potgieter, Marthinus Steenkamp; Strauss, Roelf Du Toit; Büsching, Ingo (American Geophysical Union, 2011)
      We present calculations of the propagation times and energy losses of cosmic rays as they are transported through the heliosphere. By calculating these quantities for a spatially 1D scenario, we benchmark our numerical ...
    • A stochastic differential equation code for multidimensional Fokker-Planck type problems 

      Kopp, Andreas; Potgieter, Marthinus Steenkamp; Büsching, Ingo; Strauss, Roelf Du Toit (Elsevier, 2012)
      We present a newly developed numerical code that integrates Fokker–Planck type transport equations in four to six spatial dimensions (configuration plus momentum space) and time by means of stochastic differential equations. ...