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我们银河系的光晕是由什么构成的，它又是如何形成的？ episode artwork

EPISODE · Oct 22, 2019 · 3 MIN

我们银河系的光晕是由什么构成的，它又是如何形成的？

from 天文随心听｜讲述宇宙与人的故事

光晕是一个围绕银河系的球状区域，主要组成部分是暗物质。暗物质之所以“暗”是因为它不会发出任何电磁辐射，所以暗物质只能通过引力相互作用来研究。暗物质，特别是光在经过暗物质时会像通过凸透镜一样发生弯曲，这就是“引力透镜”效应。

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我们银河系的光晕是由什么构成的，它又是如何形成的？

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