Other
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994p%26ss...42..987b&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 42, no. 11, p. 987-992
Other
6
Hydrogen Ions, Ion Distribution, Magnetic Field Configurations, Magnetohydrodynamic Flow, Moments, Polar Regions, Wave-Particle Interactions, Computerized Simulation, Geomagnetism, Gravitation, Ionic Diffusion, Monte Carlo Method, Polarization Characteristics, Temperature, Velocity Distribution
Scientific paper
A Monte Carlo simulation was developed in order to study the effects of wave-particle interactions (WPI) on the plasma outflow in the polar wind. The simulation also considered the other mechanisms included in the `classical' polar wind studies such as gravity, the polarization electrostatic field, and the divergence of geomagnetic field lines. Although the plasma consisted of electrons, H(+) and O(+) ions, we emphasized the behavior of H(+) in this preliminary study. The ion distribution function, as well as the profiles of its moments (density, drift velocity, temperatures, etc.) were found for different levels of WPI, that is, for different values of normalized diffusion rates in the velocity space (normalized D(sub perpendicular) H(+)). We found that as the WPI strength increases: (1) the ion drift velocity increases and its density decreases; (2) the perpendicular temperature T(sub perpendicular) (H(+)) increases; (3) the parallel temperature T(sub parallel) (H(+)) first decreases and then increases due to the balance between the parallel adiabatic cooling and the transfer of the energy from the perpendicular to the parallel direction; and (4) the temperature anisotropy ((T(sub parallel) (H(+))/T(sub perpendicular) (H(+)) is reduced and even reversed in some cases. For strong WPI (normalized D(sub perpendicular) (H(+) much greater than 1), the ion distribution function shows weak conic features at high altitudes.
Barakat Abdallah R.
Barghouthi I. A.
No associations
LandOfFree
The effect of wave-particle interactions on the polar wind: Preliminary results 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 The effect of wave-particle interactions on the polar wind: Preliminary results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effect of wave-particle interactions on the polar wind: Preliminary results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-949900