The correlation of rapid AKR variations with changes in the fluxes of precipitating electrons
| Autor: | S. M. Petrinec, J. Mobilia, Roger R. Anderson, W. L. Imhof, D. L. Chenette, M. Walt |
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| Rok vydání: | 1999 |
| Předmět: |
Physics
Atmospheric Science Time delays Field line Aerospace Engineering Astronomy and Astrophysics Time resolution Electron Spectral line Computational physics Geophysics Space and Planetary Science hemic and lymphatic diseases General Earth and Planetary Sciences Polar Time variations Atomic physics Anisotropy |
| Zdroj: | Advances in Space Research. 23:1747-1752 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/s0273-1177(99)00383-x |
| Popis: | Since AKR is believed to be generated by anisotropic electron distributions on auroral field lines, it is important to investigate the correlations of AKR with precipitating electrons. At present little is known about the corresponding variations for short duration events since direct electron measurements have generally been made with limited temporal and spatial coverage. Now, with both AKR and X-ray image measurements performed from the POLAR spacecraft it is possible to investigate the correlations between AKR and the intensities and energy spectra of multi-keV electrons with a time resolution of minutes or less. The rise times, durations and fall times of both species are intercompared for events with significant fast time variations in the fluxes of AKR waves and/or X-rays. Observed time delays between X-ray and AKR enhancements are also considered as well as their relative intensities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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