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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 MWC 480 ： ウィキペディア英語版 MWC 480 MWC 480 is a young star about twice the mass of the Sun located 455 light-years away in the Taurus star-forming region. The name refers to the Mount Wilson Catalog of B and A stars with bright hydrogen lines in their spectra.〔(【引用サイトリンク】title=Catalog of Resolved Circumstellar Disks )〕 MWC 480 has X-ray emissions typical of a pre-main-sequence Herbig Ae/Be star but with an order of magnitude more photoelectric absorption. It has a gas-dust envelope and is surrounded by a protoplanetary disc. Astronomers using the ALMA (Atacama Large Millimeter/submillimeter Array) have found that the protoplanetary disc surrounding MWC 480 contains large amounts of methyl cyanide (CH3CN), a complex carbon-based molecule. Hydrogen cyanide (HCN) has also been detected in the disc.〔(【引用サイトリンク】title=Complex Organic Molecules Discovered Around Star MWC 480 )〕 No signs of planet formation have yet been detected. ==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「MWC 480」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.