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Updated: Jul 12, 2026

11:34
Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
冥王星とハロンの相互イベントのスペクトロフォトメトリー:冥王星とハロンの個々のスペクトル
まとめ
冥王星とハロンのスペクトルは,異なる表面組成を示しています. シャロンは中性スペクトルを示し,冥王星はメタンの吸収帯と赤色の帯を示している.
科学分野:
- 惑星科学は惑星科学である.
- スペクトル顕微鏡検査です.
- 天文学 天文学
背景:
- 冥王星とハロンの相互イベントは,それらの表面特性を研究する機会を提供します.
- 以前の観測では,ハロンの詳細なスペクトル情報が欠けていた.
研究 の 目的:
- 互いのイベント中に冥王星とハロンの時間解像度反射スペクトルを取得し,分析する.
- 両天体の表面組成とアルベドを特徴付けるために.
主な方法:
- 1987年,冥王星とハロンの相互イベント中に時間解像度スペクトル (5,500~10,000 Å) を取得した.
- 冥王星とハロンのスペクトルを分離するために完全な隠蔽を用いた.
- 太陽のアナログ星に比率をつけることで,スペクトルを反射度に減らした.
主要な成果:
- シャロンの反射スペクトルはメタンの吸収がなく特徴がなく,中性色と約0.37.7のアルベドを示しています.
- 冥王星のスペクトルにはメタン吸収帯 (73008900 Å) と赤い色があり,アルベドは0.56.5です.
- 6200 Å の弱いメタン帯は,シグナルからノイズへの制限のため,決定的に特定できませんでした.
結論:
- 冥王星とハロンは表面の組成が異なっており,冥王星はメタンに富み,ハロンはメタンがない.
- シャロンの表面はスペクトル的に中性であり,冥王星とは異なる組成または処理を示唆しています.
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