The Keplerian regime of a charged particle in planetary

The Keplerian regime of a charged particle in planetary
magnetospheres
M. Iñarrea1 , V. Lanchares1 , J. Palacián2 ,
A. I. Pascual1 , J. P. Salas1 and P. Yanguas2
1
2
Universidad de La Rioja, 26004 Logroño, Spain.
Universidad Pública de Navarra, 31006 Pamplona, Spain.
∗
June 16, 2003
Abstract
We study the dynamics of a charged particle orbiting a rotating magnetic planet,
under the assumption that the magnetic field is created by a perfect magnetic dipole
and the magnetosphere surrounding the planet is a rigid conducting plasma which
rotates with the same angular velocity as the planet.
After a Delaunay normalisation and taking into account discrete symmetries,
the reduced phase space is characterized and relative equilibria and bifurcations are
discussed.
∗
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