Clues on the Galactic evolution of sulphur from star clusters

  title={Clues on the Galactic evolution of sulphur from star clusters},
  author={Elisabetta Caffau and Lorenzo Monaco and Monique Spite and Piercarlo Bonifacio and Giovanni Carraro and Hans-G. Ludwig and Sandro Villanova and Yuri Beletsky and Luca Sbordone},
  journal={Astronomy and Astrophysics},
Context. The abundances of α-elements are a powerful diagnostic of the star formation history and chemical evolution of a galaxy. Sulphur, being moderately volatile, can be reliably measured in the interstellar medium (ISM) of damped Ly-α galaxies and extragalactic H ii regions. Measurements in stars of different metallicity in our Galaxy can then be readily compared to the abundances in external galaxies. Such a comparison is not possible for Si or Ca that suffer depletion onto dust in the ISM… 

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