Production of nonisothermal electrons and Langmuir waves because of colliding ion holes and trapping of plasmons in an ion hole

Bengt Eliasson, Padma Shukla

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We present new simulation studies exhibiting production of nonisothermal electron distributions and Langmuir waves by colliding ion holes and trapping of plasmons in an ion hole. We find that, during head-on ion hole collisions, streams of accelerated electrons are produced by the electrostatic potentials supporting the ion holes. Subsequently, Langmuir waves are excited by a two-stream instability involving energetic electron beams. The resulting Langmuir waves can be trapped in an ion hole. The present ion-hole-Langmuir wave interactions are unique kinetic phenomena which can be dealt with a Vlasov code, which we developed recently. The results can have relevance to the understanding of particle and field data that are forthcoming from different spacecraft missions in Earth’s auroral ionosphere and the magnetosphere.
Original languageEnglish
Article number095006
Number of pages4
JournalPhysical Review Letters
Volume92
Issue number9
DOIs
Publication statusPublished - 5 Mar 2004

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plasmons
trapping
ions
electrons
wave interaction
electron distribution
magnetospheres
ionospheres
spacecraft
electron beams
electrostatics
collisions
kinetics
simulation

Keywords

  • ion holes
  • non-isothermal electrons
  • Langmuir waves

Cite this

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abstract = "We present new simulation studies exhibiting production of nonisothermal electron distributions and Langmuir waves by colliding ion holes and trapping of plasmons in an ion hole. We find that, during head-on ion hole collisions, streams of accelerated electrons are produced by the electrostatic potentials supporting the ion holes. Subsequently, Langmuir waves are excited by a two-stream instability involving energetic electron beams. The resulting Langmuir waves can be trapped in an ion hole. The present ion-hole-Langmuir wave interactions are unique kinetic phenomena which can be dealt with a Vlasov code, which we developed recently. The results can have relevance to the understanding of particle and field data that are forthcoming from different spacecraft missions in Earth’s auroral ionosphere and the magnetosphere.",
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Production of nonisothermal electrons and Langmuir waves because of colliding ion holes and trapping of plasmons in an ion hole. / Eliasson, Bengt; Shukla, Padma.

In: Physical Review Letters, Vol. 92, No. 9, 095006, 05.03.2004.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Production of nonisothermal electrons and Langmuir waves because of colliding ion holes and trapping of plasmons in an ion hole

AU - Eliasson, Bengt

AU - Shukla, Padma

PY - 2004/3/5

Y1 - 2004/3/5

N2 - We present new simulation studies exhibiting production of nonisothermal electron distributions and Langmuir waves by colliding ion holes and trapping of plasmons in an ion hole. We find that, during head-on ion hole collisions, streams of accelerated electrons are produced by the electrostatic potentials supporting the ion holes. Subsequently, Langmuir waves are excited by a two-stream instability involving energetic electron beams. The resulting Langmuir waves can be trapped in an ion hole. The present ion-hole-Langmuir wave interactions are unique kinetic phenomena which can be dealt with a Vlasov code, which we developed recently. The results can have relevance to the understanding of particle and field data that are forthcoming from different spacecraft missions in Earth’s auroral ionosphere and the magnetosphere.

AB - We present new simulation studies exhibiting production of nonisothermal electron distributions and Langmuir waves by colliding ion holes and trapping of plasmons in an ion hole. We find that, during head-on ion hole collisions, streams of accelerated electrons are produced by the electrostatic potentials supporting the ion holes. Subsequently, Langmuir waves are excited by a two-stream instability involving energetic electron beams. The resulting Langmuir waves can be trapped in an ion hole. The present ion-hole-Langmuir wave interactions are unique kinetic phenomena which can be dealt with a Vlasov code, which we developed recently. The results can have relevance to the understanding of particle and field data that are forthcoming from different spacecraft missions in Earth’s auroral ionosphere and the magnetosphere.

KW - ion holes

KW - non-isothermal electrons

KW - Langmuir waves

UR - http://prl.aps.org/abstract/PRL/v92/i9/e095006

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DO - 10.1103/PhysRevLett.92.095006

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VL - 92

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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