Journal article
Electric fields derived from electron drift measurements
Geophysical research letters, Vol.21(17), pp.1863-1866
1994
DOI: 10.1029/94GL01072
Abstract
The first observations of electric fields derived from electron E × B drift measurements aboard the Freja spacecraft are presented. The instrument injects a weak beam of 3 keV electrons and measures the displacement of the returning electrons after one gyroperiod. After removing effects due to beam-detector geometry and applying an empirical calibration based upon comparison with the computed υ × B electric field induced by the spacecraft motion, good agreement is found when the electron drift measurements are compared with the electric field components measured by the double probe experiment. Examples are presented in which moderately large electric fields are observed near the edges of or adjacent to electron precipitation regions with little or no electric field within.
Details
- Title: Subtitle
- Electric fields derived from electron drift measurements
- Creators
- C. A Kletzing - Max Planck SocietyG Paschmann - Max Planck SocietyM. H Boehm - Max Planck SocietyG Haerendel - Max Planck SocietyN Sckopke - Max Planck SocietyW Baumjohann - Max Planck SocietyR. B Torbert - University of New HampshireG Marklund - KTH Royal Institute of TechnologyP.-A Lindqvist - KTH Royal Institute of Technology
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.21(17), pp.1863-1866
- Publisher
- American Geophysical Union
- DOI
- 10.1029/94GL01072
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Language
- English
- Date published
- 1994
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199699602771
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