180214期:心脏星云的核心

心脏星云的核心

心脏星云的内部有什么?首先,这个编录号为IC 1805的庞大发射星云,整体外观形似人的心脏,这个形状和情人节很是合拍。心脏星云内部含量最多的元素──,不断发射红光,在这片红光的渲染下,整个星云呈现出明亮的红色光芒。这些红色的光芒和巨大的外观,都是由星云中心附近的一小群恒星造成的。在心脏星云核心,是年轻的疏散星团Melotte 15,在星团中剧烈的星风和能量辐射的侵蚀作用下,形成了几根很上相的尘埃柱。在这个疏散星团里,拥有一些质量将近50倍太阳的亮星,一些质量远远小于太阳的暗星、还有一个在数百万年前就被“驱赶”出去的微型类星体心脏星云位在北天的仙后座方向,离我们约有7,500光年远。

   翻译:银河说翻译组  雪洋洋

  审校:银河说顾问组   李   钊

In the Heart of the Heart Nebula
Credit & Copyright: Alan EricksonExplanation: What’s that inside the Heart Nebula? First, the large emission nebula dubbed IC 1805 looks, in whole, like a human heart. It’s shape perhaps fitting of the Valentine’s Day, this heart glows brightly in red light emitted by its most prominent element: hydrogen. The red glow and the larger shape are all created by a small group of stars near the nebula’s center. In the heart of the Heart Nebula are young stars from the open star cluster Melotte 15 that are eroding away several picturesque dust pillars with their energetic light and winds. The open cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, many dim stars only a fraction of the mass of our Sun, and an absent microquasar that was expelled millions of years ago. The Heart Nebula is located about 7,500 light yearsaway toward the constellation of the mythological Queen of Aethiopia (Cassiopeia).

 

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