Browsing by Subject "Particle drifts"
Now showing items 1-10 of 11
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Aspects of the time-dependent modulation of galactic cosmic rays throughout a three-dimensional heliosphere
(North-West University (South Africa), 2021)A dominant feature in the heliosphere is the heliospheric current sheet, separating regions of opposite polarity of the heliospheric magnetic field. This structure is dependent on solar activity through the tilt angle, ... -
Cosmic ray modulation processes in the heliosphere
(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 ... -
The global modulation of cosmic rays during a quiet heliosphere: a modeling perspective
(Elsevier, 2017)A perspective is given of the solar modulation of galactic cosmic rays in the heliosphere during the extraordinary quiet solar minimum period from 2006 to 2009. This is done in the context of the total modulation of cosmic ... -
Modeling ground and space based cosmic ray observations
(Elsevier, 2012)After entering our local astrosphere (called the heliosphere), galactic cosmic rays, as charged particles, are affected by the Sun’s turbulent magnetic field. This causes their intensities to decrease towards the inner ... -
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, ... -
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 ... -
Modelling charge-sign dependent modulation of cosmic rays in the heliosphere
(North-West University (South Africa), 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
(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, ... -
Modelling the perpendicular transport of energetic electrons in the inner heliosphere
(North-West University (South Africa), 2023)The transport of charged particles across a background magnetic field can occur through either particle drifts or perpendicular diffusion caused by magnetic turbulence. The former process, which was proposed by some as an ... -
The modulation of galactic cosmic rays over a solar cycle
(North-West University (South Africa), 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 ...
