Anomalous foreshock field-aligned beams observed by Cluster
We report occasional observations of two simultaneously distinct ion foreshock components recorded by the Cluster spacecraft upstream of the Earth's bow shock. In most occurrences, the lower-energy population originates as a field-aligned beam (FAB) associated with quasi-perpendicular regio...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Copernicus Publications
2011-10-01
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Series: | Annales Geophysicae |
Online Access: | https://www.ann-geophys.net/29/1967/2011/angeo-29-1967-2011.pdf |