Advanced Computer Modeling of the Lunar Plasma Environment in the Dynamic Terrestrial Magnetosphere

Details Advanced Computer Modeling of the Lunar Plasma Environment in the Dynamic Terrestrial Magnetosphere Advanced Computer Modeling of the Lunar Plasma Environment in the Dynamic Terrestrial Magnetosphere

Publishing date

Dec 2006

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm43a1468h&link_type=abstract

Journals

American Geophysical Union, Fall Meeting 2006, abstract #SM43A-1468

Science

Physics

Additional info 3

2740 Magnetospheric Configuration And Dynamics, 2753 Numerical Modeling, 6250 Moon (1221), 7846 Plasma Energization, 7984 Space Radiation Environment

Type

Scientific paper

Abstract

Advanced 3D multi-fluid model in conjunction with Lunar Prospector data is used to quantify the plasma environment when the Moon is in the Earth's magnetotail from quiet to storm conditions. The multi-fluid model incorporates ion cyclotron and multi-ion species effects similar to hybrid codes but the fluid treatment enables grid refinement down to as small as 100 km. This high resolution is unique to the multi-fluid modeling, enabling the model to resolve the lunar near space environment in the context of the global terrestrial magnetosphere. Spectrograms of trajectories near the Moon and through the lunar wake show significant difference in the characteristics of the electrons, the light ions and the heavy ions. This implies that the behaviour of heavy ions can not be inferred from electron measurements. Results will be presented that address the composition, energy, density, and velocity of ions near the Moon for (a) quiet conditions and (b) sub-storm/storm conditions, and the overall geometry of the cavity and wake region of the Moon, specifically noting asymmetries of the wake for different incident terrestrial magnetospheric plasma conditions.

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