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Detailed Reference Information |
Huang, T.S. and Birmingham, T.J. (1992). The polarization electric field and its effects in an anisotropic rotating magnetospheric plasma. Journal of Geophysical Research 97: doi: 10.1029/91JA02611. issn: 0148-0227. |
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Spatial variations of density and temperature along a magnetic field line are evaluated for a plasma undergoing adiabatic motion in a rotating magnetosphere. The effects of centrifugal and gravitational forces are accounted for, as in anisotropy in the pitch angle distribution functions of individual species. A polarization electric field is invoked to eliminate the net electric charge density resulting from the aforementioned mass dependent forces and different anisotropies. The position of maximum density in a two-component, electron-ion plasma is determined both in the absence and in the presence of the polarization effect and compared. A scale height, generalized to include anisotropies, is derived for the density fall-off. The polarization electric field is also included in the parallel guiding center equation: equilibrium points are determined and compared in both individual and average senses with the position of density maximum. Finally a transverse (to magnetic field lines) electric component is deduced as a consequence of dissimilar charge neutralization on adjacent field lines. The E¿B velocity resultant from such a ''fringing'' electric field is calculated and compared with the magnitude of other drifts. ¿ American Geophysical Union 1992 |
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Abstract |
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Keywords
Magnetospheric Physics, Energetic particles, trapped, Magnetospheric Physics, Electric fields, Magnetospheric Physics, Planetary magnetospheres, Space Plasma Physics, Charged particle motion and acceleration |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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