High-dispersion spectroscopy of giants in metal-poor globular clusters. I - Iron abundances

Details High-dispersion spectroscopy of giants in metal-poor globular clusters. I - Iron abundances High-dispersion spectroscopy of giants in metal-poor globular clusters. I - Iron abundances

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...413..548m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 413, no. 2, p. 548-561.

Astronomy and Astrophysics

Astrophysics

40

Giant Stars, Globular Clusters, Iron, Metallicity, Stellar Composition, Abundance, Astronomical Photometry, Astronomical Spectroscopy, Stellar Models

Scientific paper

High-resolution, high-SNR CCD spectra have been obtained for 16 giants in eight metal-poor Galactic globular clusters. Fe abundances accurate to 0.15 dex have been determined by a fully consistent set of model atmospheres and spectrum synthesis techniques. A metallicity scale is presented for metal-poor clusters that should prove useful for calibrating a wide variety of photometric and low-resolution spectroscopic metallicity indicators.

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