The first piece of Euclid’s cosmic puzzle

IF 12.9 1区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
Lindsay Oldham
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引用次数: 0

Abstract Image

欧几里得宇宙之谜的第一块拼图
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。
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来源期刊
Nature Astronomy
Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics
CiteScore
19.50
自引率
2.80%
发文量
252
期刊介绍: Nature Astronomy, the oldest science, has played a significant role in the history of Nature. Throughout the years, pioneering discoveries such as the first quasar, exoplanet, and understanding of spiral nebulae have been reported in the journal. With the introduction of Nature Astronomy, the field now receives expanded coverage, welcoming research in astronomy, astrophysics, and planetary science. The primary objective is to encourage closer collaboration among researchers in these related areas. Similar to other journals under the Nature brand, Nature Astronomy boasts a devoted team of professional editors, ensuring fairness and rigorous peer-review processes. The journal maintains high standards in copy-editing and production, ensuring timely publication and editorial independence. In addition to original research, Nature Astronomy publishes a wide range of content, including Comments, Reviews, News and Views, Features, and Correspondence. This diverse collection covers various disciplines within astronomy and includes contributions from a diverse range of voices.
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