Current systems at non-magnetized planets

When the magnetized solar wind plasma encounters a non-magnetized planet, electrical currents will be induced in the ionosphere and in the deflected plasma, forming an induced magnetosphere. 
As an example of a non-magnetized planet, we model the interaction between Mars and the solar wind using a hybrid plasma model (ions as particles, electrons as a fluid). 
We investigate the morphology of the current systems at Mars, and how they depend on upstream solar wind conditions.  Currents in the bow shock, in the magnetosheath, and in the ionosphere, are mapped.  We also study the coupling and closure of the currents and draw conclusions for other non-magnetized planets.