A quantitative model for cyclotron wave-particle interactions at the plasmapause |
| |
| Authors: | D L Pasmanik V Y Trakhtengerts A G Demekhov A A Lyubchich E E Titova T Yahnina M J Rycroft J Manninen T Turunen |
| |
| Institution: | (1) Institute of Applied Physics, Nizhny Novgorod, Russia;(2) Polar Geophysical Institute, Apatity, Russia;(3) International Space University, Illkirch, France;(4) Geophysical Observatory, Sodankylä, Finland |
| |
| Abstract: | The formation of a zone of energetic electron precipitation by the plasmapause, a region of enhanced plasma density, following energetic particle injection during a magnetic storm, is analyzed. Such a region can also be formed by detached cold plasma clouds appearing in the outer magnetosphere by restructuring of the plasmasphere during a magnetic storm. As a mechanism of precipitation, wave-particle interactions by the cyclotron instability between whistler-mode waves and electrons are considered. In the framework of the self-consistent equations of quasi-linear plasma theory, the distribution function of trapped electrons and the electron precipitation pattern are found. The theoretical results are compared with experimental data obtained from NOAA satellites. |
| |
| Keywords: | Magnetospheric physics Energetic particles Precipitating and trapped Plasma waves and instabilities |
| 本文献已被 SpringerLink 等数据库收录！ |
|
