Metal abundances of the metal-rich globular clusters

Details Metal abundances of the metal-rich globular clusters Metal abundances of the metal-rich globular clusters

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88.1762s&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, Dec. 1983, p. 1762-1768.

Astronomy and Astrophysics

Astronomy

13

Abundance, Globular Clusters, Metallicity, Red Giant Stars, Blue Stars, Infrared Photometry, Iron, Spectral Line Width, Stellar Color, Stellar Spectrophotometry, Stellar Temperature

Scientific paper

Infrared photometry of red giant stars in NGC 6712, low-resolution spectroscopy of red giants in four globular clusters, and ΔS metallicity measures for RR Lyrae stars in six globular clusters are used to establish the metal abundance scale of the relatively metal-rich globular clusters. 47 Tuc is found to be at [Fe/H] = -0.6±0.2, while M5 is more metal poor at [Fe/H] = -1.2. In contrast to the results from echelle studies of globular cluster giants, giant branch temperature is found to correlate well with metal abundance.

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