New constraints on the chemical evolution of the solar neighbourhood and galactic disc(s) - improved astrophysical parameters for the Geneva-Copenhagen Survey

  title={New constraints on the chemical evolution of the solar neighbourhood and galactic disc(s) - improved astrophysical parameters for the Geneva-Copenhagen Survey},
  author={Luca Casagrande and Ralph Schoenrich and Martin Asplund and Santi Cassisi and Iv{\'a}n Ram{\'i}rez and Jorge Mel{\'e}ndez and Thomas Bensby and Sofia Feltzing},
  journal={Astronomy and Astrophysics},
We present a re-analysis of the Geneva-Copenhagen survey, which benefits from the infrared flux method to improve the accuracy of the derived stellar effective temperatures and uses the latter to build a consistent and improved metallicity scale. Metallicities are calibrated on high-resolution spectroscopy and checked against four open clusters and a moving group, showing excellent consistency. The new temperature and metallicity scales provide a better match to theoretical isochrones, which… 

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