欧几里得宇宙之谜的第一块拼图

IF 12.9 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Nature Astronomy Pub Date : 2024-11-15 DOI:10.1038/s41550-024-02422-5

Lindsay Oldham

引用次数: 0

摘要

主图显示了这 1%切面的全部范围，是可见光仪器（VIS，波长范围为 550-900 纳米）和近红外分光计和光度计（NISP，此处使用 Y 波段和 H 波段）的光度测量组合。这个切口横跨 132 平方度的天空，位于天赤道以南，靠近投影中的大麦哲伦云。也许这里最令人印象深刻的特征就是整个视场中似乎无穷无尽的大约 1 亿个星系和恒星。除了欧几里德望远镜的主要目标--对z ~ 2以下暗能量的演化和暗物质的分布施加前所未有的精确约束之外，这幅图的丰富性还显示出这台望远镜在推进我们对更小尺度范围内结构演化的认识方面所具有的巨大潜力。虽然在 25 K 的温度下，它们的发射峰值是在远红外波段（这也是普朗克如此清晰地看到它们的原因），但欧几里德望远镜对这些温暖尘粒的详细探测，凸显了该望远镜在光学波段的灵敏度。银河卷云有时被认为是银河系外研究中的一个麻烦，因为它阻碍了对低表面亮度宇宙的观测，但它的特性却提供了有关我们银河系星际介质的重要信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics

CiteScore

19.50

自引率

2.80%

发文量

252

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