The origin and chemical evolution of carbon in the Galactic thin and thick discs

  title={The origin and chemical evolution of carbon in the Galactic thin and thick discs},
  author={Thomas Bensby and S. Feltzing Dept. of Astronomy and University of Michigan and Ann Arbor and Usa and Lund Observatory and Sweden.},
  journal={Monthly Notices of the Royal Astronomical Society},
In order to trace the origin and evolution of carbon in the Galactic disc, we have determined carbon abundances in 51 nearby F and G dwarf stars. The sample is divided into two kinemat- ically distinct subsamples with 35 and 16 stars that are representative of the Galactic thin and thick discs, respectively. The analysis is based on spectral synthesis of the forbidden (C I) line at 872.7 nm using spectra of very high resolution (R ≈ 220 000) and high signal-to-noise ratio (S/N 300) that were… Expand
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