関連する実験動画
Updated: Jul 13, 2026
09:40
Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping
Published on: August 26, 2010
NEAR at eros:イメージングとスペクトルの結果
1Space Sciences Building, Cornell University, Ithaca, NY 14853, USA. Department of Geological Sciences, Northwestern University, 309 Locy Hall, Evanston, IL 60208, USA. Applied Physics Laboratory, Johns Hopkins University, 1110 Johns Hopkins Road, L.
Science (New York, N.Y.)
|September 23, 2000
まとめ
大きく伸びた体である小惑星エロスは,突出した線形と豊富な噴出ブロックを持つクレーターに飽和した表面を示しています. その構成は通常のコンドライトと一致しており,内部の多孔性が有意であることを示唆しています.
科学分野:
- 地球近辺物体研究研究
- 小惑星の地質学
- 惑星科学は惑星科学である.
背景:
- 小惑星エロス (Eros) は34x11x11キロメートルの長方形の近地天体です.
- その表面には大きなクレーターがあり,最大のクレーターは直径5.5キロメートルです.
研究 の 目的:
- 小惑星エロス (Eros) の地質学的特徴と組成を特徴づけること.
- エロスの表面プロセスと内部構造を理解する.
主な方法:
- 表面形態学の分析,クレーター形成,線形,噴出ブロックを含む.
- 表面の組成を決定するために,光譜分析 (800-2500 nm) を行う.
- 密度測定 (2.67 +/- 0.1 g/cm3) で,内部の多孔性を推測する.
主要な成果:
- エロスには,小さなクレーター (<1km) と,目立つ溝と斜面が満ちあふれた表面があり,これは過去の衝突によるものかもしれません.
- 豊富な噴出ブロック (30-100 m) が存在し,アルベドの変動はクレーター壁のレゴリット移動に関連しています.
- スペクトルデータは,通常のコンドライトの組成と一致し,内部の多孔性は10-30%であることを示しています.
結論:
- エロスの地質学的な特徴は,小惑星の表面の進化と衝突過程についての洞察を提供します.
- 推測された組成と多孔性は,Erosは通常のコンドライト材料から形成された原始的な体であることを示唆しています.
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