A zero point and accidental errors for published values of [Fe/H] for cool giants

Details A zero point and accidental errors for published values of [Fe/H] for cool giants A zero point and accidental errors for published values of [Fe/H] for cool giants

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..135...75t&link_type=abstract

Astronomy and Astrophysics Supplement, v.135, p.75-82

Astronomy and Astrophysics

Astrophysics

14

Methods: Statistical, Stars: Abundances

Scientific paper

This paper is one of a series based on published values of [Fe/H] for late-type evolved stars. Only values of [Fe/H] from high-dispersion spectroscopy or related techniques are used. The narrative in this paper begins at a point where mean values of [Fe/H] have been derived for epsilon Vir, alpha Boo, beta Gem, and the Hyades giants. By using these stars as standard stars when necessary, a zero-point data base is assembled. This data base is then expanded into its final version by correcting and adding additional data in a step-by-step process. As that process proceeds, data comparisons are used to establish rms errors. Derived rms errors per datum are found to be about 0.10-0.12 dex, and they appear to be too large to be explained by line-to-line scatter and temperature effects.

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