Suprathermal electrons associated with a plasma discharge on an active sounding rocket experiment
| Autor: | D. W. Potter, Steven J. Monson, H. R. Anderson, Stuart D. Bale, Paul J. Kellogg |
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| Rok vydání: | 1995 |
| Předmět: |
Physics
Atmospheric Science Spectral index Sounding rocket Ecology Paleontology Soil Science Forestry Electron Plasma Aquatic Science Oceanography Luminosity Geophysics Space and Planetary Science Geochemistry and Petrology Electric field Earth and Planetary Sciences (miscellaneous) Cathode ray Atomic physics Earth-Surface Processes Water Science and Technology Electron gun |
| Zdroj: | Journal of Geophysical Research. 100:23749 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/95ja01630 |
| Popis: | Electrons with energies up to 600 eV are observed with the retarding potential analyzer (RPA) instrument aboard the Several Compatible Experiments (SCEX) III sounding rocket. The electrons are concomitant with high-energy (2–6 keV) electron gun injections and also evidence themselves by luminosity observed with 3805 A and 3914 A photometers. Both the collected electron flux and luminosity measurements are strongly nonlinear with gun injection current. For a typical event, the electron distribution is similar to laboratory beam-plasma discharge (BPD) distributions reported by Sharp (1982) and when backed by HF electric field observations (Goerke et al., 1992; Llobet et al., 1985), the BPD mechanism becomes a most likely explanation. Strong turbulence theories of BPD predict a power law tail in the electron distribution, and we compare our spectral index with some previous observations. |
| Databáze: | OpenAIRE |
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