まとめ
月の岩の発光は非常に低く,観測された月の輝きへの最小の貢献を示唆しています. 陸上の岩石や鉱物はより高い発光性を示し,ウィレマイトは例外的に明るい.
科学分野:
- 地質学 地質学 地質学
- 惑星科学は惑星科学である.
- フォトフィジックスの光学
背景:
- 月は光を発し,その源を調査する必要のある現象です.
- 月光の発光を理解することは,その表面の組成とプロセスを特徴づけるための鍵です.
研究 の 目的:
- 月の岩石の光効率を定量化し,それを地上のサンプルと比較する.
- アポロ11号の現場材料が月の全体的な発光に与える潜在的貢献を評価する.
主な方法:
- 発光測定は4つの月面岩,2つの地上の岩 (花岩,ガブロ) と1つの地上の鉱物 (ワイルミット) で行われた.
- スペクトル曲線は,精密な効率の決定のために,硫酸バリウム標準と比較した.
- 3000アングストームの紫外線を用いて刺激を行った.
主要な成果:
- 月面のサンプルは低発光効率 (<6 x 10^-5) を示した.
- 月面のサンプルと組成が似ている地上のガブロは,比較可能な低効率 (<8 x 10^-5) を示した.
- グランイットは,より高い効率 (約. 10^-4),ウィレマイトは明らかに高い発光率 (約. 2 x 10^-2) である.
結論:
- アポロ11号の月のサンプルの発光効率は非常に低い.
- これらの発見は,アポロ11号の遺跡の材料が観測された月光に最小限に寄与することを示唆しています.
- 地球上の岩石や鉱物は,幅広い発光特性を持ち,月面のサンプルを大幅に上回るものもあります.
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