Generation of Bernstein waves by ion shell distributions in the auroral region

Details Generation of Bernstein waves by ion shell distributions in the auroral region Generation of Bernstein waves by ion shell distributions in the auroral region

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003angeo..21..881j&link_type=abstract

Annales Geophysicae, vol. 21, Issue 4, pp.881-891

Physics

10

Scientific paper

Hot ion shell distributions could possibly contain enough free energy for waves that could power electron energisation above auroral inverted-V regions. Using both linear theory (WHAMP) and two-dimensional electrostatic simulations, we show that ion shell distributions can cause unstable ion Bernstein mode emissions with high temporal growth rates, as well as perpendicular and parallel e-folding distances, that are in accordance with the tranverse dimensions of auroral arcs and the parallel size of the energisation region, respectively. The phase velocities of the waves are in the proper range to give parallel energisation to electrons with a Landau resonance. The simulation shows that about 90% of the energy goes into electrons and 10% goes into cold ion perpendicular heating. An electron heating rate of ~ 80 eV/s is obtained.

Affiliated with

Also associated with

No associations

Rating

Generation of Bernstein waves by ion shell distributions in the auroral region 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 Generation of Bernstein waves by ion shell distributions in the auroral region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generation of Bernstein waves by ion shell distributions in the auroral region will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-919529