How typical is our Local Galaxy Group?

该项目将通过将银河系和仙女座星系（称为M31）的晕与本地宇宙中类似的质量系统进行比较，揭示本地集团的不寻常之处。通过使用作为银河与质量组装项目（GAMA）的一部分创建的已充分了解的星系群，该研究将能够揭示不同质量群中发现的星系的质量分布。通过将这些强大的群体与较暗的成像数据相结合，它将比以往任何工作都更进一步。两个数据集的组合将允许确定本地组是典型的还是不寻常的。把本星系群放在宇宙学的背景下是至关重要的，因为许多未来的银河考古学调查都假设它是典型的，可以有意义地告诉我们更广阔的宇宙。

This project will uncover how unusual the Local Group is by comparing the Milky Way and Andromeda Galaxy (known as M31) halos to similar mass systems in the local Universe. By using well understood galaxy groups created as part of the Galaxy And Mass Assembly project (GAMA), the study will be able to uncover the mass distribution of galaxies found in different mass groups. It will go further than any previous work by combining these robust groups with fainter imaging data. The combination of both datasets will allow the determination of whether the Local Group is typical or unusual. Putting the Local Group into a cosmological context is vital since many future Galactic archaeology surveys assume that it is typical, and can meaningfully inform us about the wider universe.