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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 Von Zeipel theorem ： ウィキペディア英語版 Von Zeipel theorem In astrophysics, the von Zeipel theorem states that the radiative flux $F$ in a uniformly rotating star is proportional to the local effective gravity $g\_\backslash textrm$. Specifically, : $F=-\backslash fracg\_\backslash textrm$ where the luminosity $L$ and mass $M\_$ are evaluated on a surface of constant pressure $P$. The effective temperature $T\_\backslash textrm$ can then be found at a given colatitude $\backslash theta$ from the local effective gravity : $T\_\}^(\backslash theta)$. The theorem is named after Swedish astronomer Edvard Hugo von Zeipel. According to the theory of rotating stars, if the rotational velocity of a star depends only on the radius, it cannot simultaneously be in thermal and hydrostatic equilibrium. This is called the von Zeipel paradox. The paradox is resolved, however, if the rotational velocity also depends on height or there is a meridional circulation. A similar situation may be arisen in accretion disks. ==References== 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「Von Zeipel theorem」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.