Stability analysis and reconstruction of wave distribution functions in warm plasmas
Abstract
The stability analysis and reconstruction of the wave distribution function (WDF) are considered. It is shown how the approaches can be combined in an investigation of satellite data. The instabilities below the local proton gyrofrequency which are caused by anisotropic proton distributions are studied. Arbitrary angles between the wavevector and the background magnetic field are considered. The effects of warm plasma on the wave propagation properties are included. A method for reconstructing the WDF is given. The scheme can be used to reconstruct the distribution function of waves in warm as well as cold constructions can be performed over a broad frequency range simultaneously. The applicability of the WDF reconstruction method is studied in model problems and in an application to observations made by the Swedish satellite viking.
- Publication:
-
Thesis Swedish Inst. of Space Physics
- Pub Date:
- May 1989
- Bibcode:
- 1989sisp.rept.....O
- Keywords:
-
- Distribution Functions;
- Plasma Waves;
- Stability;
- Wave Front Reconstruction;
- Wave Functions;
- Doppler Effect;
- Earth Magnetosphere;
- Gyrofrequency;
- Plasma Interactions;
- Space Plasmas;
- Swedish Space Program;
- Wave Propagation;
- Wave Scattering;
- Plasma Physics