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莱曼α丛
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莱曼α丛
Encyclopedia
理学
星系际介质
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Lyman-α forest
莱曼α丛
在作为背景(距离较远)的类星体光谱中, 由观测者到类星体视线方向之间的星际介质里中性氢所产生的相对弱的莱曼α吸收线信号。又称莱曼α森林。
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three-eighths quadrature formula
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