Downward ion acceleration at auroral latitudes: cause of parallel electric field
Observations with the Freja satellite at about 1700 km altitude of downward accelerated ions in the keV and sub-keV energy range are described and analysed. The observations show the following: (1) Processes involving velocity dispersion are not important; (2) Ion pitch-angle distributions a...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2002-08-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/20/1117/2002/angeo-20-1117-2002.pdf |