Euler potentials for a geomagnetic field which includes the Birkeland current
Abstract
Pairs of Euler potentials, alpha and beta, are known for symmetric configurations, like dipole field (Stern, 1964) or ring current field (Schulz and Chen, 2008), but it is much more difficult to model with this approach a combination of the Earth dipole field and fields generated by the Birkeland and ring currents. In this work we semi-analytically construct Euler potentials for this system and study dynamics of charged particles in the vicinity of field aligned current layers. Results of the calculations can be compared with spacecraft FAC and charged particle observations.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2015
- Bibcode:
- 2015AGUFMSH11A2379R
- Keywords:
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- 2431 Ionosphere/magnetosphere interactions;
- IONOSPHERE;
- 2736 Magnetosphere/ionosphere interactions;
- MAGNETOSPHERIC PHYSICS;
- 7514 Energetic particles;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7544 Stellar interiors and dynamo theory;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY