Electrostatic solitary structures in nonthermal plasmas

R. A. Cairns, A. A. Mamum, R. Bingham, R. Bostrom, R. O. Dendy, C. M. C. Nairn, P. K. Shukla

Research output: Contribution to journalArticle

562 Citations (Scopus)

Abstract

Solitary electrostatic structures involving density depletions have been observed in the upper ionosphere by the Freja satellite [Dovner et al., 1994]. If these are interpreted as ion sound solitons, the difficulty arises that the standard Korteweg-de Vries description predicts structures with enhanced rather than depleted density. Here we show that the presence of non-thermal electrons may change the nature of ion sound solitary structures and allow the existence of structures very like those observed.
Original languageEnglish
Pages (from-to)2709-2712
Number of pages4
JournalGeophysical Research Letters
Volume22
Issue number20
DOIs
Publication statusPublished - 15 Oct 1995

Fingerprint

upper ionosphere
electrostatics
plasma
acoustics
ion
ionosphere
ions
depletion
solitary waves
electron
electrons
sound

Keywords

  • auroral field lines
  • density
  • electron
  • electrons
  • ion
  • ion acceleration
  • lower hybrid waves
  • plasma
  • satellite
  • space
  • weak double layers
  • ionosphere
  • plasmas
  • structure

Cite this

Cairns, R. A., Mamum, A. A., Bingham, R., Bostrom, R., Dendy, R. O., Nairn, C. M. C., & Shukla, P. K. (1995). Electrostatic solitary structures in nonthermal plasmas. Geophysical Research Letters, 22(20), 2709-2712. https://doi.org/10.1029/95GL02781
Cairns, R. A. ; Mamum, A. A. ; Bingham, R. ; Bostrom, R. ; Dendy, R. O. ; Nairn, C. M. C. ; Shukla, P. K. / Electrostatic solitary structures in nonthermal plasmas. In: Geophysical Research Letters. 1995 ; Vol. 22, No. 20. pp. 2709-2712.
@article{1484f773dfa14feb959e481e308009bd,
title = "Electrostatic solitary structures in nonthermal plasmas",
abstract = "Solitary electrostatic structures involving density depletions have been observed in the upper ionosphere by the Freja satellite [Dovner et al., 1994]. If these are interpreted as ion sound solitons, the difficulty arises that the standard Korteweg-de Vries description predicts structures with enhanced rather than depleted density. Here we show that the presence of non-thermal electrons may change the nature of ion sound solitary structures and allow the existence of structures very like those observed.",
keywords = "auroral field lines, density, electron, electrons, ion, ion acceleration, lower hybrid waves, plasma, satellite, space, weak double layers, ionosphere, plasmas, structure",
author = "Cairns, {R. A.} and Mamum, {A. A.} and R. Bingham and R. Bostrom and Dendy, {R. O.} and Nairn, {C. M. C.} and Shukla, {P. K.}",
year = "1995",
month = "10",
day = "15",
doi = "10.1029/95GL02781",
language = "English",
volume = "22",
pages = "2709--2712",
journal = "Geophysical Research Letters",
issn = "0094-8276",
number = "20",

}

Cairns, RA, Mamum, AA, Bingham, R, Bostrom, R, Dendy, RO, Nairn, CMC & Shukla, PK 1995, 'Electrostatic solitary structures in nonthermal plasmas', Geophysical Research Letters, vol. 22, no. 20, pp. 2709-2712. https://doi.org/10.1029/95GL02781

Electrostatic solitary structures in nonthermal plasmas. / Cairns, R. A.; Mamum, A. A.; Bingham, R.; Bostrom, R.; Dendy, R. O.; Nairn, C. M. C.; Shukla, P. K.

In: Geophysical Research Letters, Vol. 22, No. 20, 15.10.1995, p. 2709-2712.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electrostatic solitary structures in nonthermal plasmas

AU - Cairns, R. A.

AU - Mamum, A. A.

AU - Bingham, R.

AU - Bostrom, R.

AU - Dendy, R. O.

AU - Nairn, C. M. C.

AU - Shukla, P. K.

PY - 1995/10/15

Y1 - 1995/10/15

N2 - Solitary electrostatic structures involving density depletions have been observed in the upper ionosphere by the Freja satellite [Dovner et al., 1994]. If these are interpreted as ion sound solitons, the difficulty arises that the standard Korteweg-de Vries description predicts structures with enhanced rather than depleted density. Here we show that the presence of non-thermal electrons may change the nature of ion sound solitary structures and allow the existence of structures very like those observed.

AB - Solitary electrostatic structures involving density depletions have been observed in the upper ionosphere by the Freja satellite [Dovner et al., 1994]. If these are interpreted as ion sound solitons, the difficulty arises that the standard Korteweg-de Vries description predicts structures with enhanced rather than depleted density. Here we show that the presence of non-thermal electrons may change the nature of ion sound solitary structures and allow the existence of structures very like those observed.

KW - auroral field lines

KW - density

KW - electron

KW - electrons

KW - ion

KW - ion acceleration

KW - lower hybrid waves

KW - plasma

KW - satellite

KW - space

KW - weak double layers

KW - ionosphere

KW - plasmas

KW - structure

U2 - 10.1029/95GL02781

DO - 10.1029/95GL02781

M3 - Article

VL - 22

SP - 2709

EP - 2712

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 20

ER -

Cairns RA, Mamum AA, Bingham R, Bostrom R, Dendy RO, Nairn CMC et al. Electrostatic solitary structures in nonthermal plasmas. Geophysical Research Letters. 1995 Oct 15;22(20):2709-2712. https://doi.org/10.1029/95GL02781