Witnessing the emergence of a carbon star

  title={Witnessing the emergence of a carbon star},
  author={Lizette Guzm{\'a}n-Ram{\'i}rez and E. Lagadec and Roger Wesson and Albert A. Zijlstra and A. Muller and D. Jones and Henri M. J. Boffin and G. C. Sloan and Matt Redman and Alain Smette and Amanda I. Karakas and L-{\AA}. Nyman},
  journal={Monthly Notices of the Royal Astronomical Society},
During the late stages of their evolution, Sun-like stars bring the products of nuclear burning to the surface. Most of the carbon in the Universe is believed to originate from stars with masses up to a few solar masses. Although there is a chemical dichotomy between oxygen-rich and carbon-rich evolved stars, the dredge-up itself has never been directly observed. In the last three decades, however, a few stars have been shown to display both carbon- and oxygen-rich material in their… Expand

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