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Time–dependent modulation of cosmic rays in the outer heliosphere
(North-West University, 2013)
The time-dependent modulation of galactic cosmic rays in the heliosphere is studied by computing
intensities using a two-dimensional, time-dependent modulation model. The compound
approach of Ferreira and Potgieter (2004), ...
Cosmic ray propagation in the galaxy and the heliosphere
(North-West University, 2018)
The local interstellar spectra (LIS’s) for cosmic rays (CRs) are still not fully determined over all
energy ranges. Numerical modelling, such as with the GALPROP code, can be used to calculate
LIS’s for a wide set of CR ...
A comparative study of cosmic ray modulation models
(North-West University, 2015)
Until recently, numerical modulation models for the solar modulation of cosmic rays have
been based primarily on finite difference approaches; however, models based on the solution
of an appropriate set of stochastic ...
Modeling of electrons in the heliosphere
(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, ...
Acceleration of cosmic rays in the outer heliosphere
(North-West University (South Africa), Potchefstroom Campus, 2016)
Shortly before the Voyager spacecraft crossed the heliospheric termination shock, they encountered narrow, peak-like enhancements in the intensities of low-energy electrons. These enhancements
were associated at the time ...
A stochastic approach to the modelling of cosmic rays in the heliosphere
(North-West University (South Africa), 2020)
A spatially three-dimensional numerical modulation model based on solving a set of stochastic differential equations, corresponding to the Parker transport equation, is employed to study the galactic proton spectra measured ...
Modeling of galactic cosmic rays in the heliosphere
(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 as ...