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arXiv 2405.01037astro-ph.CO
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欧几里得——暗宇宙侦探

Euclid -- The Dark Universe detective

L. Linke

AI总结:

本文介绍欧几里得任务,通过大规模巡天获取数十亿星系数据,以百分比级精度约束暗能量状态方程并推动宇宙学及非宇宙学研究。

摘要:

欧几里得(Euclid)是欧洲航天局(ESA)近期发射的中型任务,旨在测量宇宙学参数、检验宇宙学标准模型,并探索暗物质和暗能量的本质。为此,欧几里得将对高达14000平方度的银河系外天空进行巡天观测,获取超过10亿个星系的光学和近红外测光数据,以及超过3500万个星系的近红外无缝光谱数据。这些观测将用于估计星系成团性和宇宙剪切。预计欧几里得将在暗能量状态方程参数上实现百分比级别的约束。该巡天还将与一系列其他宇宙学探针结合使用,并对非宇宙学科学产生革命性影响。

英文摘要:

Euclid is a recently launched medium-class mission by the European Space Agency (ESA) designed to measure cosmological parameters, test the cosmological standard model, and explore the nature of dark matter and dark energy. To this end, Euclid conducts a survey of up to 14000 square degrees of the extra-galactic sky and obtains optical and near-infrared photometric measurements for more than a billion galaxies as well as near-infrared slitless spectroscopy for more than 35 million galaxies. These observations will be used to estimate galaxy clustering and cosmic shear. It is expected that Euclid will achieve percent-level constraints on the Dark Energy equation of state parameter. The survey will also be exploited with a range of other cosmological probes and prove revolutionary for non-cosmological science.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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