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Simulation of strong magnetospheric disturbances in laser-produced plasma experiments

A G Ponomarenko, Yu P Zakharov, V M Antonov, E L Boyarintsev, A V Melekhov, V G Posukh, I F Shaikhislamov, K V Vchivkov2008年Plasma Physics and Controlled FusionIF 2.2出版社

In this work, based on a series of experiments conducted in recent and past years at the laser facility KI-1 of ILP SB RAS, approaches and main results on laboratory simulation of various explosive space plasma phenomena are presented. In a general perspective, the most important results have been obtained on the interaction of an expanding plasma cloud with a uniform magnetized background, on the dynamics of an exploding plasma in a dipole magnetic field and on the formation of an 'artificial magnetosphere' by a laser-produced plasma overflowing magnetic dipole. The last case corresponds to a possible extreme event of super compression of the Earth magnetosphere caused by a giant coronal mass ejection.

日本語訳

本稿では、近年および過去数年にわたりロシア科学アカデミーシベリア支部のレーザー物理研究所(ILP SB RAS)のレーザー施設KI-1において実施された一連の実験に基づき、様々な爆発的宇宙プラズマ現象の実験室シミュレーションに関するアプローチと主要な成果を提示する。一般的な観点から、最も重要な成果は、膨張するプラズマ雲と一様磁化背景プラズマとの相互作用、双極子磁場中でのプラズマ爆発のダイナミクス、およびレーザー生成プラズマによる双極子磁場のオーバーフローに伴う「人工磁気圏」の形成に関して得られた。最後のケースは、巨大なコロナ質量放出によって引き起こされる地球磁気圏の超圧縮という極端な事象の可能性に対応するものである。

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