On the galactic chemical evolution of sulfur

  title={On the galactic chemical evolution of sulfur},
  author={N. Ryde and D. Observatory and U. T. Austin},
  journal={Astronomy and Astrophysics},
Department of Astronomy, University of Texas, Austin, TX 78712-1083, USAe-mail: ryde@astro.uu.seReceived ; acceptedAbstract. Sulfur abundances have been determined for ten stars to resolve a debate in the literature on theGalactic chemical evolution of sulfur in the halo phase of the Milky Way. Our analysis is based on observationsof the Si lines at 9212.9, 9228.1, and 9237.5 ˚A for stars for which the S abundance was obtained previously frommuch weaker Si lines at 8694.0 and 8694.6 ˚A. In… Expand

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