Physics
Scientific paper
Jul 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982p%26ss...30..627l&link_type=abstract
Planetary and Space Science, vol. 30, July 1982, p. 627-634.
Physics
6
Earth Magnetosphere, Ring Currents, Solar Terrestrial Interactions, Solar Wind, Energy Transfer, Particle Energy
Scientific paper
The ring current injection rate U is calculated as a function of the cross-tail potential drop and the relationship between U and energy added to the magnetosphere by the solar wind is examined. The injection of protons with a 90 deg pitch angle in the equatorial plane is considered as the only significant contribution to ring current energy. The magnetic field is modeled as a dipole field and the electric field consists of the cross-tail and corotation electric fields. The equation of a drift path of an equatorial particle with a specified magnetic moment is formulated, as is the particle kinetic energy in the dawn-dusk meridian plane. The total particle energy flux reaching the meridianal plane is defined in order to calculate U over the injection plane of 15 earth radii. For the corotational field, U is found to be proportional to the potential drop, while input from the crosstail field is attributable to the solar wind input to the magnetosphere.
Akasofu Syuh-Ichi
Kan Joseph R.
Lee Clarence L.
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