Credit: Liang Wang
The global structure of the magnetosphere of Ganymede is revealed by 3-D two-fluid modeling. The impinging Jovial electrons and ions follow varied and complex drift patterns as they enter, circulate around, and then leave Ganymede’s inner magnetosphere, as the tiny arrows sketch. Regions of high and low pressure are shown in red and blue in the equatorial and meridional planes. The Alfvén wings are shown as a conical family of field lines in yellow.