Metallicity measurements using atomic lines in M and K dwarf stars

  title={Metallicity measurements using atomic lines in M and K dwarf stars},
  author={Vincent M. Woolf and George Wallerstein},
  journal={Monthly Notices of the Royal Astronomical Society},
We report the first survey of chemical abundances in M and K dwarf stars using atomic absorption lines in high-resolution spectra. We have measured Fe and Ti abundances in 35 M and K dwarf stars using equivalent widths measured from λ/Δλ≈ 33 000 spectra. Our analysis takes advantage of recent improvements in model atmospheres of low-temperature dwarf stars. The stars have temperatures between 3300 and 4700 K, with most cooler than 4100 K. They cover an iron abundance range of −2.44 < [Fe/H… 

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