Simulations and observations of heating of auroral ion beams

Details Simulations and observations of heating of auroral ion beams Simulations and observations of heating of auroral ion beams

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94.8943w&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, July 1, 1989, p. 8943-8965. Research supported by the Lockheed Indepe

Computer Science

Sound

23

Auroral Zones, Ion Beams, Ionospheric Heating, Magnetosphere-Ionosphere Coupling, Particle Energy, Space Plasmas, Beam Interactions, Heavy Ions, Hydrogen Ions, Plasma Layers, Positive Ions

Scientific paper

Two-dimensional three-velocity electrostatic particle simulations were used to determine the nonlinear evolution of the distributions of auroral ion beams and thereby to determine quantitatively signatures in the ion distributions produced by the ion-ion instability for a variety of plasma conditions in the auroral zone. The signatures determined from these simulations were compared with observations from DE 1, making it possible to characterize semiquantitatively the heating of the ionospheric ions, and to investigate the causes of variability seen in the observations of Reiff et al. (1988). A comparison of the simulation with observations showed features consistent with heating via the ion-ion instability including perpendicular heating in the supersonic regime and parallel heating in the subsonic regime, and a change in the heating between these regimes as the ratio of the H(+) beam speed to the local sound speed decreases.

Affiliated with

Also associated with

No associations

Rating

Simulations and observations of heating of auroral ion beams 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 Simulations and observations of heating of auroral ion beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simulations and observations of heating of auroral ion beams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1707969