Abstract We review how dark matter is distributed in our local neighbourhood from an observational and theoretical perspective. We will start by describing first the dark matter halo of our own galaxy and in the Local Group. Then we proceed to describe the dark matter distribution in the more extended area known as the Local Universe. Depending on the nature of dark matter, numerical simulations predict different abundances of substructures in Local Group galaxies, in the number of void regions and the abundance of low rotational velocity galaxies in the Local Universe. By comparing these predictions with the most recent observations, strong constrains on the physical properties of the dark matter particles can be derived. We devote particular attention to the results from the Constrained Local UniversE Simulations (CLUES) project, a special set of simulations whose initial conditions are constrained by observational data from the Local Universe. The resulting simulations are designed to reproduce the observed structures in the nearby universe. The CLUES provides a numerical laboratory for simulating the Local Group of galaxies and exploring the physics of galaxy formation in an environment designed to follow the observed Local Universe. It has come of age as the numerical analogue of Near-Field Cosmology.

中文翻译：

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本地宇宙中的暗物质

摘要 我们从观察和理论的角度回顾了暗物质在我们当地社区的分布情况。我们将首先描述我们自己星系和本星系群的暗物质晕。然后我们继续描述被称为局部宇宙的更广阔区域中的暗物质分布。根据暗物质的性质，数值模拟预测了局地群星系中子结构的不同丰度、空隙区域的数量以及局地宇宙中低自转速度星系的丰度。通过将这些预测与最近的观察进行比较，可以推导出对暗物质粒子物理特性的强烈约束。我们特别关注受约束的本地大学模拟 (CLUES) 项目的结果，一组特殊的模拟，其初始条件受到来自本地宇宙的观测数据的约束。由此产生的模拟旨在重现附近宇宙中观察到的结构。CLUES 提供了一个数值实验室，用于模拟本地星系群，并在旨在遵循观察到的本地宇宙的环境中探索星系形成的物理学。它作为近场宇宙学的数值模拟已经成熟。CLUES 提供了一个数值实验室，用于模拟本地星系群，并在旨在遵循观察到的本地宇宙的环境中探索星系形成的物理学。它作为近场宇宙学的数值模拟已经成熟。CLUES 提供了一个数值实验室，用于模拟本地星系群，并在旨在遵循观察到的本地宇宙的环境中探索星系形成的物理学。它作为近场宇宙学的数值模拟已经成熟。