M106：一个有着奇怪中心的螺旋星系
(原标题: M106: A Spiral Galaxy with a Strange Center)
2024-10-09
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螺旋星系M106的中心发生了什么？M106是一个由恒星和气体组成的旋转圆盘，其外观主要由蓝色旋臂和靠近核心的红色尘埃带组成，如图所示，这张照片拍摄于科威特沙漠。M106的核心在无线电波和x射线中发出明亮的光芒，在星系的长度上发现了双喷流。一种不寻常的中心辉光使M106成为离我们最近的塞弗特星系之一，在塞弗特星系中，大量的发光气体被认为正在落入一个中心的大质量黑洞。M106，也被命名为NGC 4258，距离我们2350万光年，跨度6万光年，可以用小型望远镜看到猎犬星座（Canes Venatici）。
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What's happening at the center of spiral galaxy M106? A swirling disk of stars and gas, M106's appearance is dominated by blue spiral arms and red dust lanes near the nucleus, as shown in the featured image taken from the Kuwaiti desert. The core of M106 glows brightly in radio waves and X-rays where twin jets have been found running the length of the galaxy. An unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies, where vast amounts of glowing gas are thought to be falling into a central massive black hole. M106, also designated NGC 4258, is a relatively close 23.5 million light years away, spans 60 thousand light years across, and can be seen with a small telescope towards the constellation of the Hunting Dogs (Canes Venatici).
© Ali Al Obaidly