Browsing Natural and Agricultural Sciences by Subject "Particle drifts"

Now showing items 1-6 of 6

    • Cosmic ray modulation processes in the heliosphere 

      Vos, Etienne Eben (North-West University, 2011)
      The solar minimum of 2009 has been identified as an exceptional event with regard to cosmic ray (CR)modulation, since conditions in the heliosphere have reached unprecedented quiet levels. This unique minimum has been ...

    • Modeling of electrons in the heliosphere 

      Nndanganeni, Rendani Rejoyce (North-West University (South Africa) , Potchefstroom Campus, 2016)
      The propagation and modulation of electrons in the heliosphere play an important part in improving our understanding and assessment of the processes of solar modulation. A locally developed, full three-dimensional, ...

    • Modeling of galactic cosmic rays in the heliosphere 

      Ngobeni, Mabedle Donald (2015)
      The modulation of galactic cosmic ray (GCR) Carbon in a north-south asymmetrical heliosphere is studied, using a two-dimensional numerical model that contains a solar wind termination shock (TS), a heliosheath, as well ...

    • Modelling charge-sign dependent modulation of cosmic rays in the heliosphere 

      Vos, Etienne Eben (North-West University (South Africa) , Potchefstroom Campus, 2016)
      The solar minimum of cycle 23/24 has seen exceptionally quiet levels of solar activity and heliospheric modulation, which resulted in the highest cosmic ray (CR) spectrum ever recorded at Earth in December 2009 by the ...

    • Modelling of cosmic ray modulation in the heliosphere by stochastic processes 

      Strauss, Roelf du Toit (North-West University, 2013)
      The transport of cosmic rays in the heliosphere is studied by making use of a newly developed modulation model. This model employes stochastic differential equations to numerically solve the relevant transport equation, ...

    • The modulation of galactic cosmic rays over a solar cycle 

      Mohlolo, Selwana Timothy (North-West University (South Africa) , Potchefstroom Campus, 2016)
      This work studied the modulation of galactic cosmic rays in the heliosphere by using a well-established, time dependent numerical modulation model to calculate cosmic ray transport inside the heliosphere over a solar ...