Wave generation by ion horseshoe distributions on auroral field lines

R. Bingham, B. J. Kellett, R. A. Cairns, R. O. Dendy, P. K. Shukla

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Recent observation by Freja satellite of ions in the auroral zone at the boundary of the plasma sheet and tail lobe reveal the presence of a ring or horseshoe type distribution function. The horseshoe type distribution function measured by the satellites has a field aligned component which is moving in the case of the Freja data in the down-going direction with a peak velocity of about 400km/sec. We show that the horseshoe type distribution is unstable to predominantly perpendicular ion waves with frequencies in the lower-hybrid range.
LanguageEnglish
Pages2713-2716
Number of pages4
JournalGeophysical Research Letters
Volume26
Issue number17
DOIs
Publication statusPublished - 1 Sep 1999

Fingerprint

wave generation
distribution functions
auroral zones
ion
lobes
ions
rings
plasma
distribution

Keywords

  • generation
  • auroral
  • horsehoe
  • wave

Cite this

Bingham, R. ; Kellett, B. J. ; Cairns, R. A. ; Dendy, R. O. ; Shukla, P. K. / Wave generation by ion horseshoe distributions on auroral field lines. In: Geophysical Research Letters. 1999 ; Vol. 26, No. 17. pp. 2713-2716.
@article{3c6f717775854dae8fffe2e2adb0b0eb,
title = "Wave generation by ion horseshoe distributions on auroral field lines",
abstract = "Recent observation by Freja satellite of ions in the auroral zone at the boundary of the plasma sheet and tail lobe reveal the presence of a ring or horseshoe type distribution function. The horseshoe type distribution function measured by the satellites has a field aligned component which is moving in the case of the Freja data in the down-going direction with a peak velocity of about 400km/sec. We show that the horseshoe type distribution is unstable to predominantly perpendicular ion waves with frequencies in the lower-hybrid range.",
keywords = "generation, auroral, horsehoe, wave",
author = "R. Bingham and Kellett, {B. J.} and Cairns, {R. A.} and Dendy, {R. O.} and Shukla, {P. K.}",
year = "1999",
month = "9",
day = "1",
doi = "10.1029/1999GL900582",
language = "English",
volume = "26",
pages = "2713--2716",
journal = "Geophysical Research Letters",
issn = "0094-8276",
number = "17",

}

Wave generation by ion horseshoe distributions on auroral field lines. / Bingham, R.; Kellett, B. J.; Cairns, R. A.; Dendy, R. O.; Shukla, P. K.

In: Geophysical Research Letters, Vol. 26, No. 17, 01.09.1999, p. 2713-2716.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Wave generation by ion horseshoe distributions on auroral field lines

AU - Bingham, R.

AU - Kellett, B. J.

AU - Cairns, R. A.

AU - Dendy, R. O.

AU - Shukla, P. K.

PY - 1999/9/1

Y1 - 1999/9/1

N2 - Recent observation by Freja satellite of ions in the auroral zone at the boundary of the plasma sheet and tail lobe reveal the presence of a ring or horseshoe type distribution function. The horseshoe type distribution function measured by the satellites has a field aligned component which is moving in the case of the Freja data in the down-going direction with a peak velocity of about 400km/sec. We show that the horseshoe type distribution is unstable to predominantly perpendicular ion waves with frequencies in the lower-hybrid range.

AB - Recent observation by Freja satellite of ions in the auroral zone at the boundary of the plasma sheet and tail lobe reveal the presence of a ring or horseshoe type distribution function. The horseshoe type distribution function measured by the satellites has a field aligned component which is moving in the case of the Freja data in the down-going direction with a peak velocity of about 400km/sec. We show that the horseshoe type distribution is unstable to predominantly perpendicular ion waves with frequencies in the lower-hybrid range.

KW - generation

KW - auroral

KW - horsehoe

KW - wave

U2 - 10.1029/1999GL900582

DO - 10.1029/1999GL900582

M3 - Article

VL - 26

SP - 2713

EP - 2716

JO - Geophysical Research Letters

T2 - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 17

ER -