research interests

Overview: I am interested in studying how the chemical properties of astrophysical objects vary over time and as a function of location, environment and interactions. By modelling galactic systems, I aim to link particular formation conditions and evolutionary paths with characteristic observable enrichment patterns in both gas and stars. Using a very flexible code, the evolution of stellar populations, gas, and chemical elements can be simulated for systems that may experience gas flows, supernova-driven winds, metal-enriched infall and multiple episodes of star formation. This chemical evolution tool, which incorporates the most recent stellar chemical yields from the leading nucleosynthesis groups, can help diagnose galaxies, globular clusters and DLAs. Applications to large datasets have the potential to uncover general laws and patterns of galaxy evolution, but can also indirectly tell us something about which production sites are responsible for creating the different elements.
            Here are some of the projects that I'm currently involved in:

               * Chemical evolution of the Milky Way

               * Chemical evolution of Damped Lyman-alpha Absorbers (DLAs)

               * Measuring radial abundance profiles in external spiral galaxies

               * Globular cluster abundance anomolies

               * Space-time variations in the fine-structure constant

               * The extent of the Galactic Habitable Zone


  astro

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