麒麟中的细丝
(原标题: A Filament in Monoceros)
2022-03-18
浏览次数: 24
蓝色的反射星云似乎充满了这片尘土飞扬的广阔区域。锐利的望远镜框架在天空中跨度超过1度，朝向昏暗但奇特的独角兽星座。在2500光年外的麒麟座R1云复合体中，蓝色的IC 447在左边，由一条长长的黑色尘埃丝连接到右下角的IC 446。嵌入在IC 447中的是年轻的、大质量的蓝色恒星，它们的温度比太阳高得多，它们的光线被恒星物质组成的宇宙云反射。观测显示，IC 446还包含一颗年轻的恒星，一颗仍处于早期演化阶段的大质量恒星。由尘埃和分子气体组成的黑暗灯丝连接着两个恒星形成区域，长度超过15光年。
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Bluish reflection nebulae seem to fill this dusty expanse. The sharp telescopic frame spans over 1 degree on the sky toward the faint but fanciful constellation Monoceros, the Unicorn. Seen within the Monoceros R1 cloud complex some 2,500 light-years away, bluish IC 447 is on the left, joined by a long dark filament of dust to IC 446 at lower right. Embedded in IC 447 are young, massive blue stars much hotter than the Sun, whose light is reflected by the cosmic cloud of star stuff. Observations reveal that IC 446 also contains a young stellar object, a massive star still in an early stage of evolution. The dark filament of dust and molecular gas joining the two star-forming regions is over 15 light-years long.
© Giorgio Ferrari