A New Approach to Age-Dating Galaxies Throughout the Universe

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While galaxies throughout the Universe are dominated by dark matter, the determination of their ages is necessarily dependent upon what astronomers can actually see - the underlying stellar population. Disentangling the competing (and confusing) effects of age and metallicity from the integrated spectroscopy of distant galaxies is a powerful tool in cosmology, and one which we are uniquely poised to exploit. An outcome of this Fellowship will be the release of the most sophisticated spectral synthesis models of galaxies, including physics and stellar input not available elsewhere. These models will be calibrated as part of our Australian-led observational cluster age-dating program.