enormous Lyman-alpha nebula

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(astronomy) A large gas cloud (nebula) larger than galaxies, found in intergalactic space, which radiates with an emission spectrum containing 2.47 THz lines (Lyman-alpha lines).

このボタンはなに？

Astronomers were astonished when they discovered an enormous Lyman-alpha nebula surrounding a group of young galaxies at the edge of the survey.

詳細

意味（1）

(astronomy) A large gas cloud (nebula) larger than galaxies, found in intergalactic space, which radiates with an emission spectrum containing 2.47 THz lines (Lyman-alpha lines).

enormous Lyman-alpha nebulas （ 複数形 ）