Steady-state observations of geomagnetically trapped energetic heavy ions and their implications for theory

Details Steady-state observations of geomagnetically trapped energetic heavy ions and their implications for theory Steady-state observations of geomagnetically trapped energetic heavy ions and their implications for theory

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981p%26ss...29.1169f&link_type=abstract

(Max-Planck-Institut für Aeronomie, Symposium on Ionic Composition, Lindau ueber Northeim, West Germany, Aug. 25-29, 1980.) Plan

Computer Science

7

Energetic Particles, Equatorial Atmosphere, Geomagnetism, Heavy Ions, Magnetically Trapped Particles, Ats 6, Coulomb Collisions, Earth Magnetosphere, Explorer 45 Satellite, Helium Ions, Ionic Diffusion, Magnetic Storms, Radial Distribution, Steady State

Scientific paper

Data from the Heavy Ion Telescope on board Explorer 45 and the heavy ion channels on the ATS-6 spacecraft are used to describe the equatorial radial profiles of protons and He ions in the energy range of 0.1-1 MeV/nucleon. Measurements during a quiet period in June 1972 revealed that: fluxes of energetic protons and heavy ions inside L equals 4.5 are stable, with no observed decay; He ions of a given level are confined to the equatorial plane in a narrow L-range centered at Lmax; the equatorial differential flux ratio, compared on the basis of equal energy/ion, can exceed unity, indicating that He ion fluxes can be greater than equivalent energy proton fluxes; radial diffusion driven by variations of the magnetic field adequately models processes occurring in the inner magnetosphere for ion energies over 200 keV. The ATS-6 data from GEO found energetic heavy ions always present at L equals 6.6 and enhanced during magnetospheric substorms.

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