関連する実験動画
Updated: Jul 14, 2026

06:04
Simulation of the Planetary Interior Differentiation Processes in the Laboratory
Published on: November 15, 2013
火星の地球測量機MAG/ER実験によって発見された地殻磁化の地球分布
1NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA. Bartol Research Institute, University of Delaware, Newark, DE 19716, USA. Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA. Centre d'Etude Spatiale des Rayonn.
まとめ
Mars Global Surveyor (MGS) の磁場データは,地殻の磁気性が古代の高地と相関していることを明らかにしています. これは火星を示しています.
科学分野:
- 惑星科学は惑星科学である.
- 地質物理学 地質物理学とは地質物理学です.
- 宇宙物理学 宇宙物理学
背景:
- 火星の地殻は残った磁場を持っている.
- 火星グローバルサーベイヤー (M1GS) 宇宙船は,火星の磁場をマッピングしました.
- 以前のミッションは,火星の地殻の磁気に関する限られたデータを提供した.
研究 の 目的:
- 火星の地殻の磁場の空間的分布と特性を調査する.
- 火星の磁場の歴史を理解するために.
- 地殻の磁力が太陽風に与える影響を測定する.
主な方法:
- ベクトル磁場測定は,MGSに搭載されたMAG/ER装置を使用して収集されました.
- データは,エアロブレーキングと科学段階の軌道で得られた.
- データ収集の高度範囲は100〜200kmでした.
主要な成果:
- 観測された磁場源は,スケール,強度,幾何学によって異なります.
- 磁場源は,火星高地の古代のクレーター地形と相関しています.
- 大規模な衝突盆地近くの磁力の欠如は,40億年前にダイナモの停止を示唆しています.
結論:
- 火星は,ナオキア紀の時代に,地球磁場を失った可能性が高い.
- 重要な地殻磁気源が存在し,特にテラ・シレヌム地域にはあります.
- これらの源は,火星の周りの太陽風の流れにダイナミックな障害を作り出します.
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