The chemical evolution of the Bootes I ultra-faint dwarf galaxy
We present chemical abundance measurements of two metal-poor red giant stars in the ultra-faint dwarf galaxy Boötes I, based on Magellan/MIKE high-resolution spectra. For Boo-980, with [Fe/H] = -3.1, we present the first elemental abundance measurements, while Boo-127, with [Fe/H] = -2.0, shows abundances in good agreement with previous measurements. Light and iron-peak element abundance ratios in the two Boötes I stars, as well as those of most other Boötes I members, collected from the...[Show more]
|Collections||ANU Research Publications|
|Source:||The Astrophysical Journal|
|01 Frebel A et al The chemical evolution 2016.pdf||569.36 kB||Adobe PDF|
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