Physics
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9617903c&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Oct. 1, 1991, p. 17,903-17,908.
Physics
10
Auroral Zones, Magnetospheric Ion Density, Satellite Observation, Solar Cycles, Electrostatic Waves, Ion Concentration, Oxygen Ions, Shock Waves
Scientific paper
The effect of the solar cycle (as indicated by the value of the solar radio flux at 10.7 cm, F10.7) on the auroral acceleration was investigated using data on the electrostatic shocks and the associated ion beams, the ion conics, and the electron distributions obtained by the S3-3 spacecraft during the years 1976-1979. The results indicate that, during a solar maximum, parallel potential drops are less common at altitudes below 8000 km than they are during a solar minimum; however, for the events where ion beams were observed, the average parallel potential drops below the satellite had very similar values. These results are consistent with the increased occurrence frequency of O(+) conics during high F10.7 observed by Yau et al. (1985) in the DE-1 data.
Cattell Cynthia A.
Chari Sharad
Temerin Michael A.
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