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现代物理知识  2020, Vol. 32 Issue (5): 10-16    DOI:
启航,探索极端宇宙专题 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
惊鸿一瞥:宇宙中那些短暂而剧烈的电磁爆发现象
俞云伟
华中师范大学物理科学与技术学院 430079
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摘要 当我们仰望夜空,除了星光由于地球大气的扰动而闪烁和在极幸运的情况下看到几道流星划过天际外,映入我们眼帘的星空总是那么静谧、悠远而难以察觉其变化。是的,相比于恒星和宇宙长达百万年至百亿年的漫长演变,人类的一生哪怕是整个人类的历史都显得那么的短暂,短暂到时间似乎都已经凝固。然而,在另外一个极端,当我们使用一些反应极为迅速和灵敏的,能够在分、秒、毫秒乃至微秒时间尺度上分辨图像差异的望远镜去观察天空的时候,我们却又将看到一个截然不同的宇宙,从中发现大量稍纵即逝的瞬间辐射现象,它们可能出现在从无线电波到伽马射线的各个电磁波段。如果将天空中的这些暂现源收集在一起按照时间序列做成一个动画的话,我们就将看到一个此起彼伏、波澜壮阔的生动场景,充分展现出变化方为宇宙之真谛。
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俞云伟. 惊鸿一瞥:宇宙中那些短暂而剧烈的电磁爆发现象[J]. 现代物理知识, 2020, 32(5): 10-16.
$author.xingMing_EN. [J]. Modern Physics, 2020, 32(5): 10-16.
 
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