Numerical periodic orbits of charged grains around magnetic planets
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We apply a numerical searching method to investigate three-dimensional periodic orbits of charged dust particles in planetary magnetospheres. A classic generalized Stormer model of magnetic planets along with the parameters of Saturn is employed. More periodic orbits are found, besides the already known circular periodic orbits in or parallel to the equatorial plane. We divide all these orbits into six categories based on their appearances. By calculating the characteristic multipliers of the orbits, we investigate the stabilities of these periodic orbits.
KeywordsNumerical methods Magnetic planets Charged particles Periodic orbits Stability
This work was supported by the National Natural Science Foundation of China (Grant No. 11772167).
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