1999年2月
Generation mechanism of ESW based on GEOTAIL plasma wave observation, plasma observation and particle simulation
GEOPHYSICAL RESEARCH LETTERS
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- 巻
- 26
- 号
- 3
- 開始ページ
- 421
- 終了ページ
- 424
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1029/1999GL900005
- 出版者・発行元
- AMER GEOPHYSICAL UNION
Data of electrostatic waves and plasma particles in the deep magnetotail (X similar to 209R(E)) respectively obtained by Plasma Wave Instrument and Comprehensive Plasma Instrument onboard the GEOTAIL spacecraft are presented. When the GEOTAIL spacecraft experienced multiple crossings of the plasma sheet boundary layer, broadband electrostatic noise (BEN) and Langmuir wave were observed alternatively. The dynamic frequency spectra of BEN are very bursty in time, and their waveforms are a series of electrostatic solitary waves (ESW). The LW is observed when an enhancement of an electron flux is found on a high-energy tail of a relatively cold velocity distribution function of the major thermal electrons. The ESW, on the other hand, are observed in the presence of a hot thermal electron distribution function, in which electrons responsible for the ESW are embedded. These plasma conditions are in agreement with the ESW generation model based on particle simulations.
- リンク情報
- ID情報
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- DOI : 10.1029/1999GL900005
- ISSN : 0094-8276
- J-Global ID : 200902192768285193
- Web of Science ID : WOS:000078434300036