Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm33b0364p&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM33B-0364
Physics
2752 Mhd Waves And Instabilities (2149, 6050, 7836), 2753 Numerical Modeling, 2760 Plasma Convection (2463), 2764 Plasma Sheet, 2790 Substorms
Scientific paper
We present a computer model that solves the system of nonlinear MHD equations in dipolar coordinates and is designed specifically to simulate the near-Earth plasma sheet region which has a near-dipolar field line topology. The objective of this work is a detailed study of the inner plasma sheet as a region of particular importance for auroral processes including the proton aurora and near-Earth breakup. We suggest that certain types of bulk plasma motion can be a destabilizing factor in the near-Earth plasma sheet. Two types are considered bursty flows and convective motion. Both Earthward and tailward bursts form a local min-B region. However, effects of tailward bursts are stronger. Earthward convection forms a potentially unstable min-B region at about 9 R_E, whereas tailward convection does not have a destabilizing effect.
Donovan Eric
Prosolin V.
Voronkov Igor
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