透镜

天文·每日一图

超新星安可: 多次观测到的第二次超新星爆发

An image shows a cluster of galaxies with unusual arcs. The arcs are background galaxies distorted by the gravitational lens effect of the foreground cluster. The background galaxy shows several spots that are supernovas occurring in the galaxy. Please see the explanation for more detailed information.
图像显示了一个带有异常弧线的星系团。这些弧线是受前景星系团引力透镜效应扭曲的背景星系。背景星系中出现了几个斑点,这些斑点是星系中发生的超新星爆发。有关更多详细信息,请参阅说明。

天文·每日一图

MAC0647: 韦伯望远镜的早期宇宙引力透镜

2023年1月18日 MACS0647: Gravitational Lensing of the Early Universe by Webb Image Credit: NASA, ESA, CSA, Dan Coe (STScI), Rebecca Larson (UT), Yu-Yang Hsiao (JHU); Processing: Alyssa Pagan (STScI); Text: Michael Rutkowski (Minn. St. U. Mankato) Explanation: Gravitational lensing by the galaxy cluster

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