月が誕生した起源

A P Boss

Science (New York, N.Y.)

|January 24, 1986

まとめ

巨大衝突の仮説は,火星サイズの原惑星が初期の地球に衝突した後の残骸から月が形成されたことを示唆しています. この衝突により,物質の円盤が形成され,月が形成されました.

科学分野:

惑星科学は惑星科学である.
天体物理学天体物理学
地質学地質学地質学

背景:

地上惑星形成の支配的な理論は,惑星粒子の増殖を伴う.
この蓄積プロセスは,巨大な衝突イベントを含むと予測されています.

研究の目的:

月の起源としての巨大衝突仮説を評価する.
巨大衝突による月の形成の動的実現可能性と確率を評価する.

主な方法:

この研究は,惑星小量蓄積の理論的枠組みを考察している.
初期の地球における巨大衝突のダイナミックな影響を分析しています.
環惑星円盤の形成と,その後の月の増殖を調査しています.

主要な成果:

巨大衝突仮説は,火星サイズの衝突器が原地球に衝突したと仮定しています.
この衝突により,物質は地球中心の軌道に放出され,月前円盤が形成された.
月がこの円盤から形成されたと考えられている.

結論:

他の月の形成のメカニズムは,動的にありそうにないように見えますが,巨大衝突の仮説は,さらなる調査を必要とします.
月の巨大衝突の起源の可能性と確率に関する根本的な疑問が残っています.

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