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Chemical abundances in the globular clusters NGC 5024 and NGC 5466 from optical and infrared spectroscopy
Masen Lamb, Kim Venn, Matthew Shetrone +2
Detailed chemical abundances for five stars in two Galactic globular clusters, NGC 5466 and NGC 5024, are presented from high resolution optical (from the Hobby- Eberley Telescope)…
VLT/FLAMES spectroscopy of red giant branch stars in the Fornax dwarf spheroidal galaxy
B. Lemasle, T. de Boer, V. Hill +13
Fornax is one of the most massive dwarf spheroidal galaxies in the Local Group. The Fornax field star population is dominated by intermediate age stars but star formation was going…
Optimal Integrated Abundances for Chemical Tagging of Extragalactic Globular Clusters
Charli M. Sakari, Kim Venn, Matthew Shetrone +2
High resolution integrated light (IL) spectroscopy provides detailed abundances of distant globular clusters whose stars cannot be resolved. Abundance comparisons with other system…
Searching for Dust around Hyper Metal-Poor Stars
Kim A. Venn, Thomas H. Puzia, Mike Divell +3
We examine the mid-infrared fluxes and spectral energy distributions for metal-poor stars with iron abundances [Fe/H] , as well as two CEMP-no stars, to eliminate the p…
Binarity in Carbon-Enhanced Metal-Poor stars
Else Starkenburg, Matthew D. Shetrone, Alan W. McConnachie +1
A substantial fraction of the lowest metallicity stars show very high enhancements in carbon. It is debated whether these enhancements reflect the stars' birth composition, or if t…