Solar Flares and the Dynamics of Langmuir Waves in CurrentCarrying Plasmas
Abstract
The dynamics of intense Langmuir waves in currentcarrying plasmas is studied both analytically and numerically. Starting with the widely used Zakharov equations, adapted to these systems, specific features of this problem are pointed out. Further, the role of resonant particles is analyzed. By using 1D macroparticle numerical code, nonlinear regimes of the modifieddecay and modulational instabilities are then modelled. Efficient cooperation of essentially ponderomotive and electronion drift effects its demonstrated. It appears that the heating of a currentcarrying plasma can be activated through releasing of the inductively stored energy, due to the enhanced conversion of energy associated with the electron drift motion. The underlying physics is discussed and its relationship to solar flare theory is suggested.
 Publication:

Solar Physics
 Pub Date:
 September 1989
 DOI:
 10.1007/BF00156273
 Bibcode:
 1989SoPh..124..319K
 Keywords:

 Electrostatic Waves;
 Plasma Currents;
 Solar Flares;
 Current Density;
 Electric Fields;
 Electron Energy;
 Electron Plasma;
 Mathematical Models;
 Plasma Density;
 Solar Physics