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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bonnor-Ebert mass ： ウィキペディア英語版 Bonnor–Ebert mass In astrophysics, the Bonnor–Ebert mass is the largest mass that an isothermal gas sphere embedded in a pressurized medium can have while still remaining in hydrostatic equilibrium. Clouds of gas with masses greater than the Bonnor–Ebert mass must inevitably undergo gravitational collapse to form much smaller and denser objects. As the gravitational collapse of an interstellar gas cloud is the first stage in the formation of a protostar, the Bonnor–Ebert mass is an important quantity in the study of star formation. For a gas cloud embedded in a medium with a gas pressure $P\_$, the Bonnor–Ebert mass is given by $M\_=\},$ where G is the gravitational constant and $v\_\; \backslash equiv\; \backslash sqrt$ is given by $c\_\; \backslash simeq\; 1.18.$ ==See also== * Jeans mass 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bonnor–Ebert mass」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.