Glossary term: 星際消光
Description: 星際消光是星際介質對來自天文光源的光吸收和散射的呲合效應。星際介質是存在於星系中恆星之間的空間中的物質,由氣體和亞微米大小的塵埃粒子組成。與氣體粒子相比,星際塵埃對星光的影響要大得多。肉眼可以觀察到銀河系中塵埃和氣體的巨大通道,就像數百萬顆恆星微弱光芒之間的縫隙。消光使對包含大量氣體和塵埃的區域的觀測變得困難。消光在波長較短處通常較強,使天體看起來更紅(星際紅化)。天文學家根據星際消光的強弱隨波長的變化特性,通常使用較長的波長——如紅外線或亞毫米光——來研究塵埃籠罩的區域,如恆星形成區。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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