Session 8S - Space.
POSTER session, Thursday afternoon, November 14
Exhibit Hall - Concourse Level, Adam's Mark
The dispersion problem for energetic-charged-particle-cloud in a turbulent space plasma in a weak magnetic field is considered. Solution for electron distribution function is found for the case when a level of the plasma turbulence depends on cloud particles. It is shown that characteristic velocity of the cloud expansion is determined mainly by the low energetic part of the cloud. The features of expansion dynamics of the diffusion electron flux from solar bursts are analyzed. It is shown that there are turbulent boundaries in front of the cloud and a slowly cooling plateau in its center. A small part of particles whose velocities are directed almost along the dispersion axes can ``evaporate'' from a relatively slowly expanding electron cloud and could be a cause of the third type solar radiation bursts. Supported in part by Tesla Labs, Inc., La Jolla, CA 92038-2946. ^1Also with Tesla Labs, Inc., La Jolla, CA 92038-2946.