ヴォイジャー2号による木星における磁場研究: 予備的な結果
Science (New York, N.Y.)
|November 23, 1979
まとめ
ヴォイジャー2号のデータは木星を明らかにした.
科学分野:
- 惑星科学 惑星科学
- マグネトヒドロダイナミクス
- 宇宙物理学 宇宙物理学
背景:
- 木星の磁気圏は,木星の磁気圏よりかなり大きく,木星の磁気圏は木星の磁気圏よりかなり大きい.
- 以前のボイジャー1号の研究では,木星から伸びる巨大な磁気尾が示されていた.
- 木星の磁気圏を理解することは,惑星科学と宇宙天候の予測に不可欠です.
研究 の 目的:
- "ボイジャー2"からの入出軌道のデータを分析する.
- 木星の磁気圏と磁気尾の構造と動態を調査する.
- 木星の磁気圏と木星の衛星ガニメデの相互作用を調査する.
主な方法:
- ボイジャー2号のゴダード宇宙飛行センターの磁気計データを活用した.
- 木星の弓の衝撃と磁気圏の交差を特定の放射距離で観測した.
- 磁場幾何学とプラズマ相互作用を分析した.
主要な成果:
- 木星の弓の衝撃と磁気圏の複数の交差点を確認しました.
- 巨大な磁気尾の証拠を提供した. 直径300-400木星の半径.
- マグネトディスクの電流と磁気尾の電流の観測された空間的融合.シート.
- 磁気圏と月の相互作用による可能性のあるガニメデの近くの変動が検出されました.
結論:
- 木星の磁気圏は広大で,顕著な磁気尾がある.
- 内側の磁気圏は,濃縮されたプラズマによって歪められ,尾の電流シートと融合します.
- 木星の磁気圏とガニメデの間の相互作用は,検出可能な乱れを引き起こします.
関連する概念動画
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