前往银河系中心的旅程
(原标题: Journey to the Center of the Galaxy)
2024-11-24
浏览次数: 16
我们银河系的中心是什么？在儒勒·凡尔纳的经典科幻小说《地心之旅》中，利登布洛克教授和他的探险者同伴们遇到了许多奇怪而令人兴奋的奇观。天文学家已经知道银河系中心存在一些奇怪的物体，包括巨大的宇宙尘埃云、明亮的星团、旋转的气体环，甚至还有一个超大质量的黑洞。银河系中心的大部分都被中间的尘埃和气体挡住了，在可见光下我们看不到它，但我们可以利用其他形式的电磁辐射来探索它。这段特色视频实际上是对银河系中心的数字变焦，它利用了数字化天空调查的可见光图像。随着电影的进行，所显示的光线转变为穿透尘埃的红外线，并突出了2013年最近发现的向中心黑洞坠落的气体云。
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What lies at the center of our galaxy? In Jules Verne's science fiction classic, A Journey to the Center of the Earth, Professor Liedenbrock and his fellow explorers encounter many strange and exciting wonders. Astronomers already know of some of the bizarre objects that exist at our Galactic Center, including vast cosmic dust clouds, bright star clusters, swirling rings of gas, and even a supermassive black hole. Much of the Galactic Center is shielded from our view in visible light by the intervening dust and gas, but it can be explored using other forms of electromagnetic radiation. The featured video is actually a digital zoom into the Milky Way's center which starts by utilizing visible light images from the Digitized Sky Survey. As the movie proceeds, the light shown shifts to dust-penetrating infrared and highlights gas clouds that were recently discovered in 2013 to be falling toward the central black hole.