Return Current and Collisional Effects in Nonthermal Electron Beams with Pulsed Injection
Abstract
The evolution of a pulse of nonthermal electrons, with a truncated power-law spectrum, injected into a uniformly dense coronal plasma, is studied by the 1-D particle simulation of return current and direct collisional effects. The beam pulse injection profile varies gradually enough for total current neutrality, and a steady-state Ohm's law for the return current, to apply at each point and time. Quasi-linear relaxation of the beam is deliberately ignored in order to isolate the modification of return current effects by pulsed injection.
- Publication:
-
Solar Physics
- Pub Date:
- October 1990
- DOI:
- 10.1007/BF00159044
- Bibcode:
- 1990SoPh..129..325K
- Keywords:
-
- Electron Beams;
- Electron Energy;
- Solar Corona;
- Solar Flares;
- Atmospheric Models;
- Computerized Simulation;
- Power Spectra;
- Solar Atmosphere;
- Solar Physics;
- Beam Current;
- Energetic Electron;
- Current Neutrality;
- Nonthermal Electron;
- Particle Simulation