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The stellar populations research team at the University of Florida conducts diverse studies examining individual stars within Local Group galaxies and more distant systems. We seek to determine key stellar characteristics including distance, age, and chemical makeup to better comprehend galaxy formation, evolution, and the accompanying chemical enrichment processes.
Growing evidence suggests early universe structure formation occurred hierarchically, aligning with cold dark matter models incorporating a cosmological constant. Smaller structures like Local Group dwarf spheroidal galaxies merged and accumulated to create larger systems such as the Milky Way and Andromeda. By analyzing the ages, compositions, and motions of individual stars (termed near-field cosmology), researchers can uncover specifics about this hierarchical assembly process and its later development throughout cosmic history.