Simulation of the current-driven electrostatic ion cyclotron instability

Details Simulation of the current-driven electrostatic ion cyclotron instability Simulation of the current-driven electrostatic ion cyclotron instability

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981georl...8..611p&link_type=abstract

Geophysical Research Letters, vol. 8, June 1981, p. 611-614.

Physics

18

Auroral Zones, Computerized Simulation, Electrostatic Waves, Ion Cyclotron Radiation, Magnetohydrodynamic Stability, Plasma Currents, Electron Distribution, Ion Acoustic Waves, Ion Temperature, Self Consistent Fields, Turbulence Effects

Scientific paper

Results are presented of a self-consistent particle simulation of the growth and saturation of electrostatic ion cyclotron (EIC) waves along auroral field lines. The driving mechanism for the waves is an initial drifting Maxwellian distribution for the electrons. The magnetic field is taken to lie in the simulation plane, so that modes such as the ion acoustic instability and the EIC instability can be excited, thus making it possible to study the behavior of EIC waves in the presence of ion acoustic turbulence. A dc electric field, which tends to keep the current constant along the field lines, is included. It is shown that the EIC instability grows to a moderate level before saturating due to plateau formation. The perpendicular ion temperature increases by typically 40%, with an increase arising from bulk heating only. The anomalous resistivity, associated with the EIC instability is determined and compared with previous calculations and with that due to the ion acoustic instability. Implications of the results for observation of ion cyclotron waves on auroral field lines are discussed.

Affiliated with

Also associated with

No associations

Rating

Simulation of the current-driven electrostatic ion cyclotron instability does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Simulation of the current-driven electrostatic ion cyclotron instability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simulation of the current-driven electrostatic ion cyclotron instability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-993934