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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 Magellanic spiral ： ウィキペディア英語版 Magellanic spiral Magellanic spiral galaxies are (usually) dwarf galaxies which are classified as the type Sm (and SAm, SBm, SABm). They are galaxies with one spiral arm, and are named after their prototype, the Large Magellanic Cloud, an SBm galaxy. They can be considered to be intermediate between dwarf spiral galaxies and irregular galaxies. ==Magellanic spirals== SAm galaxies are a type of unbarred spiral galaxy, while SBm are a type of barred spiral galaxy.〔''Linda S. Sparke'', ''John Sill Gallagher'', "Galaxies in the Universe: An Introduction", 2ed., Cambridge University Press, '2007', ISBN 978-0-521-85593-8〕 SABm are a type of intermediate spiral galaxy. Type ''Sm'' and ''Im'' galaxies have also been categorized as irregular galaxies with some structure (type Irr-1). Sm galaxies are typically disrupted and asymmetric.〔citeBase; (Neutral Hydrogen in the Interacting Magellanic Spirals NGC 4618/4625 ); ''Stephanie J. Bush''; ''Eric M. Wilcots''; (accessed 1 March 2009)〕 dSm galaxies are dwarf spiral galaxies or dwarf irregular galaxies, depending on categorization scheme. The Magellanic spiral classification was introduced by Gerard de Vaucouleurs, along with Magellanic irregular (Im), when he revamped the Hubble classification of galaxies. 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「Magellanic spiral」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.