Physics
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ssrv...22..739f&link_type=abstract
(European Space Agency, ESLAB Symposium on Advances in Magnetospheric Physics with GEOS-1 and ISEE-1 and 2, 13th, Innsbruck, Aus
Physics
1
Earth Magnetosphere, Plasma Diagnostics, Electron Energy, Geomagnetic Tail, International Sun Earth Explorers, Radiation Distribution, Velocity Distribution
Scientific paper
Magnetospheric measurements of three-dimensional velocity distributions for positive ions and electrons in the energy range from 1 eV to 45 keV are reported which were obtained with quadrispherical Lepedeas on ISEE 1 and 2. The instrumentation is briefly described, and an extension of energy-time spectrograms to three-dimensional summaries via the use of ancillary energy-spin phase spectrograms for multiple analyzers is outlined. Macroscopic plasma parameters for two crossings of the dayside magnetopause are presented, along with a preliminary evaluation of the kinematical motions of low-energy charged particles within the terrestrial ring current. Nonmonotonic electron velocity distributions presumably related to the generation of electron cyclotron harmonic instabilities are examined. The possible signature of diffusion driven by electrostatic waves is considered, and velocity distributions of positive ions in the dawn magnetotail are investigated.
Ackerson K. L.
Burek B. G.
Decoster R. J.
Frank Louis A.
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