Connecting Galaxies with Host Dark Matter Halos with Next Generation Sky Surveys

通过下一代巡天将星系与宿主暗物质晕连接起来

• 批准号: 2645783
• 金额: --
• 依托单位: University of Edinburgh
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2645783
• 关键词: Connecting; Galaxies; Host; Dark; Matter

How galaxies form in dark matter halos is still not understood in detail. This project is an observational study of the link between the galaxies we see and the dark matter, both in terms of the large-scale structure, and of the properties of the dark halos themselves.It builds on work already done combining the Galaxy And Mass Assembly (GAMA) galaxy catalog with weak lensing studies using the Kilo-Degree Survey (KiDS). Both GAMA and KiDS are state of the art but are about to be superseded by even larger and more powerful surveys. KiDS was performed with the 2.6m VST on Paranal in Chile. Right now a project on the 8m Subaru telescope is already underway with more sensitive lensing measurements, and in 2022 two new observatories - the Rubin observatory in Chile and the Euclid satellite of the European Space Agency - will start to map large areas of the sky with even higher precision, transforming this research field. At the same time, massive spectroscopic galaxy surveys will eclipse GAMA, which contains data for some 300,000 galaxies. In particular, the WAVES survey will measure millions of galaxies, over a wider area and to fainter limits than GAMA. The combination of these next-generation data sets will allow us to study the galaxy-halo connection with much higher precision, and in more detail, than was possible so far. This information is vital, fundamental input to galaxy formation theory.

在暗物质光环中如何形成星系仍未详细了解。该项目是对我们看到的星系与暗物质之间的联系的观察性研究，无论是在大规模结构方面以及黑暗光环本身的特性而言。 Gama和孩子都是最新的，但即将被更大，更强大的调查所取代。孩子们在智利的Paranal上与260万vst一起演出。目前，在8m Subaru望远镜上进行的一个项目已经在进行中，并进行了更敏感的镜头测量，并且在2022年，两个新的观测站 - 智利的鲁宾天文台和欧洲航天局的欧几里得卫星 - 将开始以更高的精确度绘制大面积区域，从而改变了这一研究领域。同时，大规模的光谱星系调查将蚀Eclipse Gama，其中包含大约300,000个星系的数据。特别是，波浪调查将在更广泛的区域上测量数百万星系，并且比GAMA衡量了限制。这些下一代数据集的组合将使我们能够以比到目前为止更详细的精度研究星系 - 霍洛联系。该信息对银河形成理论至关重要，基本意义。