Core plasma in the magnetosphere

Details Core plasma in the magnetosphere Core plasma in the magnetosphere

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987rvgeo..25..579h&link_type=abstract

Reviews of Geophysics (ISSN 8755-1209), vol. 25, April 1987, p. 579-587.

Physics

Geophysics

27

Core Flow, Earth Magnetosphere, Electron Energy, Ion Temperature, Plasma Density, Space Plasmas, Auroral Zones, Helium Ions, Hot Electrons, Ion Distribution, Molecular Ions, Polar Caps

Scientific paper

The paper presents a review of new findings related to core plasma (which includes ions and electrons with energies less than 50 eV) identified in studies of magnetosphere during 1983-1986. These findings include the cleft ion fountain; the plasmaspheric heavy ion torus; core molecular ions; high core-plasma densities in the plasma-sheet boundary layer; intense transverse heating of core plasmas in the equatorial regions; the supersonic polar wind (H/+/ and He/+/); toroidal or ring heavy-ion distribution functions in the auroral region; conic-to-field-aligned ion signatures of inverted-V auroral events; and the large-scale electron density structure of the magnetosphere. The progress made on modeling core plasma includes simulation of thermal helium heating at the equator; kinetic models of the plasma transport from localized ionospheric regions; time-dependent hydrodynamic models of the polar wind and plasmasphere-ionosphere coupling; and kinetic models of plasmasphere refilling.

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