Sulphur in the Sculptor dwarf spheroidal galaxy - Including NLTE corrections

12 May 2015 Skuladottir Asa Andrievsky Sergei M. Tolstoy Eline Hill Vanessa Salvadori Stefania Korotin Sergey A. Pettini Max

In Galactic halo stars, sulphur has been shown to behave like other $\alpha$-elements, but until now, no comprehensive studies have been done on this element in stars of other galaxies. Here, we use high-resolution ESO VLT/FLAMES/GIRAFFE spectra to determine sulphur abundances for 85 stars in the Sculptor dwarf spheroidal galaxy, covering the metallicity range $-2.5\leq \text{[Fe/H]} \leq-0.8$... (read more)

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  • ASTROPHYSICS OF GALAXIES