Physics
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..139l&link_type=abstract
Journal of Geophysical Research, vol. 87, Jan. 1, 1982, p. 139-143.
Physics
37
Discontinuity, Energy Transfer, Gyromagnetism, Magnetopause, Magnetospheric Electron Density, Atmospheric Models, Geomagnetism, Lines Of Force, Self Consistent Fields, Trapped Particles
Scientific paper
A model is developed for the rotational discontinuities associated with the reconnection configuration on the dayside magnetopause and the energy transfer process in the tail magnetopause. The model, in which the ion dynamics is described by the fluid equations and electrons are assumed to move adiabatically along the magnetic field lines, is valid for a rotational discontinuity with a thickness greater than a few ion gyroradii. It is shown, by the inclusion of self-consistency for trapped electrons, that (1) the trapped electron density profile is uniquely related to the rate of angular rotation of the magnetic field, and (2) the sense of magnetic field rotation is determined by the ratio of the normal and tangential components of the magnetic field. It is found that the electron polarization of magnetopause rotational discontinuities should be in agreement with satellite observations.
Kan Joseph R.
Lee Clarence L.
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