Dynamic Hybrid Simulation of the Lunar Wake During ARTEMIS Crossing

Details Dynamic Hybrid Simulation of the Lunar Wake During ARTEMIS Crossing Dynamic Hybrid Simulation of the Lunar Wake During ARTEMIS Crossing

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufm.p51d1474w&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #P51D-1474

Physics

[2752] Magnetospheric Physics / Mhd Waves And Instabilities, [2780] Magnetospheric Physics / Solar Wind Interactions With Unmagnetized Bodies, [6250] Planetary Sciences: Solar System Objects / Moon

Scientific paper

The interaction of the highly dynamic solar wind with the Moon is simulated with the A.I.K.E.F. (Adaptive Ion Kinetic Electron Fluid) code for the ARTEMIS P1 flyby on February 13, 2010. The A.I.K.E.F. hybrid plasma simulation code is the improved version of the Braunschweig code. It is able to automatically increase simulation grid resolution in areas of interest during runtime, which greatly increases resolution as well as performance. As the Moon has no intrinsic magnetic field and no ionosphere, the solar wind particles are absorbed at its surface, resulting in the formation of the lunar wake at the nightside. The solar wind magnetic field is basically convected through the Moon and the wake is slowly filled up with solar wind particles. However, this interaction is strongly influenced by the highly dynamic solar wind during the flyby. This is considered by a dynamic variation of the upstream conditions in the simulation using OMNI solar wind measurement data. By this method, a very good agreement between simulation and observations is achieved. The simulations show that the stationary structure of the lunar wake constitutes a tableau vivant in space representing the well-known Friedrichs diagram for MHD waves.

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