External influences on galaxy evolution

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This project will undertake detailed observations to determine precisely where and when galaxies formed. This will be done by measuring the amount of star formation in clusters, groups, and isolated galaxies at different epochs. By comparing this evolution with the expected growth of dark matter structures from theory, I will be able to make the important distinction between the internal physics governing a galaxy's evolution and those forces imposed upon it by its surroundings. This will address one of the most important outstanding problems in extragalactic astronomy: understanding how galaxies like the Milky Way formed and evolve over time.