Physics
Scientific paper
Apr 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93.2573l&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 93, April 1, 1988, p. 2573-2590.
Physics
45
Convection Currents, Plasma Waves, Plasmapause, Ring Currents, Space Plasmas, Ampte (Satellites), Cold Plasmas, Geomagnetic Micropulsations, Ion Cyclotron Radiation, Kp Index, Plasma Density
Scientific paper
The inner ring-current boundary and the plasmapause at dusk are characterized on the basis of plasma, magnetic-field, and wave measurements obtained by the AMPTE-IRM satellite during plasmapause passages at 2130, 1900, and 1730 LT in April-June 1985. The data are presented graphically and analyzed in detail. A region of about 1 earth radius in which hot ring-current ions overlap the plasmapause is observed, with sunward plasma convection and evidence for a diamagnetic current and (in one case) ion-cyclotron waves with left- and right-hand-polarized modes of equal intensity. Also noted are magnetic pulsations of period 2-5 min, accompanied by plasma density fluctuations which, in two of the three observations, were of amplitude consistent with thermal fluctuations.
Baumjohann Wolfgang
Haerendel Gerhard
LaBelle James
Sckopke Norbert
Treumann Rudolf A.
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