船底座星云中的尘埃山
(原标题: Mountains of Dust in the Carina Nebula)
2022-08-01
浏览次数: 14
这是船底座星云中恒星与尘埃的对决，而恒星是赢家。更准确地说，来自大质量新形成恒星的高能光和风正在蒸发和分散它们形成的尘埃恒星托儿所。位于船底座星云，非正式地称为神秘山，这些柱子的外观主要由黑暗的尘埃组成，尽管它主要由透明的氢气组成。像这样的尘埃柱实际上比空气薄得多，由于相对少量的不透明星际尘埃，它们看起来像山。这张特色图片是用哈勃太空望远镜拍摄的，距离大约7500光年，突出了船底座的内部区域，跨度约为3光年。在几百万年内，恒星很可能会完全胜出，整个尘埃山将会蒸发。
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It's stars versus dust in the Carina Nebula and the stars are winning. More precisely, the energetic light and winds from massive newly formed stars are evaporating and dispersing the dusty stellar nurseries in which they formed. Located in the Carina Nebula and known informally as Mystic Mountain, these pillar's appearance is dominated by the dark dust even though it is composed mostly of clear hydrogen gas. Dust pillars such as these are actually much thinner than air and only appear as mountains due to relatively small amounts of opaque interstellar dust. About 7,500 light-years distant, the featured image was taken with the Hubble Space Telescope and highlights an interior region of Carina which spans about three light years. Within a few million years, the stars will likely win out completely and the entire dust mountain will evaporate.