翻訳と辞書 Words near each other ・ Dropleton ・ Droplets (disambiguation) ・ Droplets (programming environment) ・ Dropline ・ Dropline (disambiguation) ・ Dropline GNOME ・ Droplitz ・ Droplr ・ Dropmire ・ Dropmore Park ・ Dropmore Press ・ Dropmyemail ・ Dropmysite ・ Dropout ・ Dropout (1970 film) ・ Dropout (astronomy) ・ Dropout (communications) ・ Dropout (neural networks) ・ Dropout Delinquents ・ Dropout Prevention Act ・ Dropout voltage ・ Dropout Year ・ Dropped ・ Dropped (Consolidated album) ・ Dropped (Mind Funk album) ・ Dropped (TV series) ・ Dropped A tuning ・ Dropped axle ・ Dropped ceiling ・ Dropped from Heaven Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Dropout (astronomy) ： ウィキペディア英語版 Dropout (astronomy) In astronomy, dropout is a radiation source whose radiation intensity falls off sharply below a specific wavelength. The source will be easily visible when its light is filtered to wavelengths longer than the cutoff value, but will "drop out" of the image when it is filtered to wavelengths shorter than the threshold. This is a standard method for locating distant galaxies in deep field images. Because the hydrogen that surrounds the galaxies absorbs light with a wavelength around 100 nanometers, the galaxies have a natural dropout threshold. The exact wavelength of this threshold is redshifted and can be used to determine the distance to the galaxy. ==See also== *Lyman-break galaxy 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「Dropout (astronomy)」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.