The lunar wake current systems
Article first published online: 16 JAN 2013
©2012. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 1, pages 17–21, 16 January 2013
How to Cite
2013), The lunar wake current systems, Geophys. Res. Lett., 40, 17–21, doi:10.1029/2012GL054635., , , , and (
- Issue published online: 29 JAN 2013
- Article first published online: 16 JAN 2013
- Manuscript Accepted: 6 DEC 2012
- Manuscript Received: 16 NOV 2012
- Current systems;
- Lunar wake;
- Hybrid simulations
We present the lunar wake current systems when the Moon is assumed to be a non-conductive body, absorbing the solar wind plasma. We show that in the transition regions between the plasma void, the expanding rarefaction region, and the interplanetary plasma, there are three main currents flowing around these regions in the lunar wake. The generated currents induce magnetic fields within these regions and perturb the field lines there. We use a three-dimensional, self-consistent hybrid model of plasma (particle ions and fluid electrons) to show the flow of these three currents. First, we identify the different plasma regions, separated by the currents, and then we show how the currents depend on the interplanetary magnetic field direction. Finally, we discuss the current closures in the lunar wake.