潘多拉星系团
(原标题: Pandora's Cluster of Galaxies)
2023-06-09
浏览次数: 11
这张由詹姆斯·韦伯太空望远镜的NIRCam拍摄的深视场马赛克图像展示了一个令人惊叹的星系团Abell 2744。Abell 2744也被称为潘多拉星团，它本身似乎是三个不同的大质量星团的沉重合并。它位于大约35亿光年之外，朝向雕刻家星座。在暗物质的主导下，这个巨型星团扭曲了时空的结构，使更远的物体产生引力透镜。比潘多拉星系团更红的许多透镜源是早期宇宙中非常遥远的星系，它们的透镜图像被拉伸并扭曲成弧形。当然，独特的衍射峰标志着前景的银河系恒星。根据潘多拉星团的估计距离，这个宇宙盒子的跨度约为600万光年。但是不要惊慌。您可以在2分钟的视频游览中探索这个诱人的地区。
查看原文解释
This deep field mosaicked image presents a stunning view of galaxy cluster Abell 2744 recorded by the James Webb Space Telescope's NIRCam. Also dubbed Pandora's Cluster, Abell 2744 itself appears to be a ponderous merger of three different massive galaxy clusters. It lies some 3.5 billion light-years away, toward the constellation Sculptor. Dominated by dark matter, the mega-cluster warps and distorts the fabric of spacetime, gravitationally lensing even more distant objects. Redder than the Pandora cluster galaxies many of the lensed sources are very distant galaxies in the early Universe, their lensed images stretched and distorted into arcs. Of course distinctive diffraction spikes mark foreground Milky Way stars. At the Pandora Cluster's estimated distance this cosmic box spans about 6 million light-years. But don't panic. You can explore the tantalizing region in a 2 minute video tour.