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The Open Cluster Chemical Abundances and Mapping (OCCAM) Survey: First Results from SDSS-V
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AAS
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2024
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Abstract
The fine details of how galaxies evolve chemically and dynamically can only be probed within the Milky Way and other nearby galaxies. While studies have been done which use field stars to probe chemical variations in the Milky Way, reliable ages in these stellar samples are difficult to derive. Therefore, we aim to produce a large sample of open clusters, for which ages can be derived, to study the evolution of the Galactic disk. Open clusters are key evolution tracers, as they are groups of stars that have formed from the same gas cloud and therefore have similar properties: velocity, location, metallicity, and age. For this project, we updated the Open Cluster Chemical Abundances and Mapping (OCCAM) survey’s cluster membership pipeline, to provide improved membership samples and to incorporate new data from Gaia DR3 and the SDSS-V/Milky Way Mapper survey. Here, we provide the first sample of new open cluster membership and abundances using SDSS-V data, which will be used to explore trends in metallicity and abundance to improve our understanding of the Milky Way’s chemical evolution.
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Wallace.pdf
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Physics and Astronomy