土星流の粒子の組成
Sascha Kempf1, Ralf Srama, Frank Postberg
1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany. Sascha.Kempf@mpi-hd.mpg.de
まとめ
カッシーニは,カッシーニから
科学分野:
- 惑星科学は惑星科学である.
- 宇宙塵の分析 宇宙塵の分析
- 土星のシステムダイナミクス
背景:
- カッシーニ宇宙船の宇宙塵分析器 (CDA) は,高速の塵の流れを検出しました.
- これらの粒子は,土星のシステムから逃れ,部分的にA環から発生していることが観察されました.
研究 の 目的:
- 土星のA環から発生した塵粒子の組成を分析する.
- これらの脱出する塵の流れの源と性質を理解するために.
主な方法:
- CDAのタイム・オブ・フライト・マススペクトロメーターを利用した.
- 個々の塵粒子の584個の質量スペクトルを分析した.
主要な成果:
- 粒子は主に酸素,シリコン,鉄で構成されています.
- 証拠は,水氷,アンモニアム,炭素の存在を示唆しています.
- 主要成分はシリケート材料であり,純粋な氷ではありません.
結論:
- 脱出する塵粒子は,土星の氷のリングの材料の中の不純物である可能性が高い.
- これらの発見は,土星のリングの組成とダイナミクスについての洞察を提供します.
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