Electro Acceleration in a Geomagnetic Field Line Resonance

Peter Damiano and J.R. Johnson

关键词: Acceleration;    Alfven Waves;    Space Plasma Physics;   

DOI  :  10.2172/1062556
RP-ID  :  PPPL-4660
PID  :  OSTI ID: 1062556

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

A hybrid MHD kinetic electron model in dipolar coordinates is used to sim- ulate the upward current region of a geomagnetic Field Line Resonance (FLR) system for a realistic ambient electron temperatures of a keV. It is found that mirror force e ects result in potential drops su cient to accelerate electrons to energies in excess of a keV in support of eld aligned currents on the or- der of 0.5 ??A/m2. The wave energy dissipated in this acceleration would com- pletely damp an undriven FLR with an equatorial width of 0.5 RE within two resonance cycles.