Physics – Plasma Physics
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3416108m&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 16, CiteID L16108
Physics
Plasma Physics
8
Space Plasma Physics: Kinetic And Mhd Theory, Magnetospheric Physics: Magnetotail Boundary Layers, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Space Plasma Physics: Charged Particle Motion And Acceleration
Scientific paper
In a frame of self-consistent model of thin current sheets (TCSs), where the tension of magnetic field lines is balanced by the inertial force of ion motion, we investigated the influence of the asymmetry of plasma sources on the structure and spatial localization of the equilibrium solution. For simplicity only one ion source is considered. It is shown that the asymmetry of plasma sources does not modify dramatically the bulk of the current carried by ions at meandering orbits. Negative diamagnetic currents are significantly stronger at the side of a plasma source due to enhanced plasma density in this region. The center of TCS is displaced to the opposite side of the plasma source to keep the pressure balance. One could speculate that this phenomenon might be a cause of flapping motions of the TCS due to the natural variability of plasma sources.
Delcourt Dominique C.
Malova H. V.
Petrukovich A. A.
Popov Yu. V.
Runov Anton V.
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