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Possibilities of a laboratory experiment on investigation of auroral kilometric radiation in the near-Earth plasma

Mikhail Viktorov, Alexander Chernyshov, Dmitry Chugunin, Mikhail Mogilevsky2021年Plasma Physics and Controlled FusionIF 2.2出版社

Observations are reported of electromagnetic emissions at frequencies above the electron gyrofrequency in a mirror-confined electron cyclotron resonance plasma. These emissions are interpreted as the excitation of the fast extraordinary wave at the fundamental harmonic of the electron gyrofrequency, similar to the excitation of the auroral kilometric radiation (AKR) of the Earth. The paper proposes a method for studying the temporal characteristics of physical processes occurring in the auroral electron acceleration region, which is applied to the AKR measurements onboard INTERBALL-2 spacecraft and adopted to the measurements of laboratory plasma emissions. The joint data analysis of satellite measurements and the results of laboratory experiments showed similarities in the cyclotron instability development.

日本語訳

鏡映閉じ込め電子サイクロトロン共鳴プラズマにおける電子ジャイロ周波数以上の周波数での電磁放射の観測結果が報告されている。これらの放射は、地球のオーロラキロメートル放射(AKR)の励起と同様に、電子ジャイロ周波数の基本波における高速異常波の励起として解釈される。本論文では、オーロラ電子加速領域で発生する物理過程の時間的特性を研究する手法を提案し、これをINTERBALL-2宇宙機によるAKR測定に適用し、さらに実験室プラズマからの放射測定にも適用する。衛星測定と実験室実験結果の統合データ解析により、サイクロトロン不安定性の発展における類似性が示された。

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