Large-scale galaxy environments: clusters, groups and filaments

星系的形态、恒星形成的历史、动力学和许多其他特性在很大程度上取决于它们形成的地方和它们生活的地方。换句话说，星系受到环境的影响。我们已经非常详细地研究了最极端的环境（丰富的星系团的核心），但较温和的环境，如星系团的群和丝状结构，在很大程度上仍未被探索。我们知道这些环境一定在星系演化中扮演着重要的角色，因为许多落入星系团的星系在到达星系团核心时已经被“预处理”了。在这个项目中，我们将把最先进的数字星系形成和演化模型与一些最具创新性的天文仪器所获得的新的独特观测数据结合起来，首先，绘制这些结构并识别栖息在它们中的星系，其次，研究它们的特性以找出这些环境如何影响它们的历史。

The morphology, star-formation history, dynamics, and many other properties of galaxies depend strongly on where they formed and where they live. In other words, galaxies are affected by their environment. We have already studied in great detail the most extreme environments (cores of rich galaxy clusters), but milder environments such as the groups and the filamentary structures that feed galaxy clusters remain largely unexplored. We know that these environments must play an important role on galaxy evolution because many of the galaxies that fall into clusters have already been "pre-processed" by the time they arrive to the cluster core. In this project we will combine state-of-the-art numerical galaxy formation and evolution models with new and unique observational data taken with some of the most innovative astronomical instruments to, first, map these structures and identify the galaxies that inhabit them and, second, study their properties to find out how these environments affect their history.