Recent research on magnetospheric wave-particle interactions

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概要

• 論文の詳細を見る

• Highlights of recent Stanford University VLF research in the Antarctic include new observations of wave-induced particle precipitation and controlled experiments on nonlinear wave growth phenomena. Higher-than-expected levels of burst precipitation have been discovered inside the plasmasphere, near L=2,using subionospheric signal perturbations called "Trimpi events". Studies of burst precipitation have been extended to the region poleward of the plasmapause using the Siple transmitter signal as a waveguide probe. Experiments on the "coherent wave instability", using the amplitude and frequency modulation capability of the new Siple transmitter, have produced exciting new results. Examples are : 1) better definition of the power threshold for the stimulation of temporal wave growth, 2) generation of strong sidebands by unamplified "beat" waves and 3) generation of chorus-like elements within a band of simulated hiss. Using a new digital processing technique developed at Stanford, new features of the phase behavior of growing waves have been found. Opportunities for extending these experiments are discussed.

• 国立極地研究所の論文

著者

• Inan U

  Stanford Univ. Ca Usa

• Carpenter D.l.

  Space Telecommunications And Radioscience Laboratory Stanford University

• Helliwell R

  Stanford Univ. Ca Usa

• Helliwell R.a.

  Space Telecommunications And Radioscience Laboratory Stanford University

• Katsufrakis J.p.

  Space Telecommunications And Radioscience Laboratory Stanford University

• Inan U.S.

  Space, Telecommunications, and Radioscience Laboratory, Stanford University

• Paschal E.W.

  Space, Telecommunications, and Radioscience Laboratory, Stanford University

• Paschal E.w.

  Space Telecommunications And Radioscience Laboratory Stanford University

関連論文

• じきけん/サイプル局信号による波動-粒子相互作用の実験
• VLF wave injection experiments from Siple Station, Antarctica
• Recent research on magnetospheric wave-particle interactions

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