Estimate of the Spectrum of Langmuir's Turbulence in a Solar Flare from the X-emission Spectrum
Abstract
With regard to estimating the spectrum and level of Langmuir's turbulence in the region of a solar flare, the X-spectra of the flare of October 12, 1977 is considered. Using Brown's (1971) model, the distribution function of fast electrons has been determined from three X-emission spectra derived at consecutive (10-second interval) times. The monotonic increase of the distribution function of electrons entering the X-emission area indicates that the electrons are continuously accelerated in the region of the flare. The acceleration is analyzed in the case where the effect of collision processes was neglected, and for the case of a strong effect of the collision processes. For the latter case, a model is outlined in which the required distribution functions are accelerated by Langmuir's turbulence in the acceleration region with a filamentary structure.
- Publication:
-
Bulletin of the Astronomical Institutes of Czechoslovakia
- Pub Date:
- 1980
- Bibcode:
- 1980BAICz..31..111K
- Keywords:
-
- Emission Spectra;
- Plasma Turbulence;
- Solar Flares;
- X Ray Astronomy;
- Electron Scattering;
- Particle Acceleration;
- Plasma Spectra;
- Plasma-Particle Interactions;
- Solar Physics