29 July 2015 to 6 August 2015
World Forum
Europe/Amsterdam timezone

The effects of particle drifts on the modulation of galactic electrons in the global heliosphere

4 Aug 2015, 16:00
1h
Theater Foyer (World Forum)

Theater Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 25
Poster contribution SH-TH Poster 3 SH

Speaker

Rendani Nndanganeni (North-West University (Potchefstroom campus) South Africa)

Description

The fundamental process of global curvature, gradient and current sheet drifts in the heliosphere is still not fully understood, especially how solar wind and magnetic field turbulence could affect the magnitude of drifts on a global scale. General consensus is that the so-called weak scattering drifts is giving too large modulation effects as follows from the application of numerical drift models to solar modulation, when compared to observations from the Earth to the outer heliosphere. The effects of drifts on the global modulation of electrons are revisited by studying different modulation scenarios using a three-dimensional steady state numerical model for solar minimum conditions, for both magnetic polarity epochs. A straight forward approach is followed to illustrate how reducing drifts can affect the modulation of galactic electrons on such a global scale.
Registration number following "ICRC2015-I/" 112
Collaboration -- not specified --

Primary author

Rendani Nndanganeni (North-West University (Potchefstroom campus) South Africa)

Co-author

Marthinus Potgieter (North-West Uiversity)

Presentation materials

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