Estimation of Stellar Metal Abundance. II. A Recalibration of the Ca II K Technique, and the Autocorrelation Function Method
We have recalibrated a method for the estimation of stellar metal abundance, parameterized as [Fe/H], based on medium-resolution (1-2 Å) optical spectra (the majority of which cover the wavelength range 3700-4500 Å). The equivalent width of the Ca II K
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