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银河平面中前所未见的环状结构
/ 银河平面中前所未见的环状结构射电天文学为我们窥探不可见宇宙打开了一扇窗口。虽然我们的眼睛能感知可见光,但宇宙中很多天体释放的辐射波长远超可见光,位于电磁波谱的射电波段。当可见光被星际尘埃阻挡时,射电波却能畅通无阻地穿透,看到传统望远镜完全看不到的天体。此外,相较于其他波长,射电波更易穿透地球大气层 ...
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