47 Tucanae, membership and metallicity of three RR Lyrae stars

Details 47 Tucanae, membership and metallicity of three RR Lyrae stars 47 Tucanae, membership and metallicity of three RR Lyrae stars

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85...36k&link_type=abstract

Astronomical Journal, vol. 85, Jan. 1980, p. 36, 37.

Astronomy and Astrophysics

Astronomy

27

Abundance, Cepheid Variables, Globular Clusters, Metals, Star Clusters, Stellar Spectra, Stellar Spectrophotometry, Wave Dispersion

Scientific paper

The Preston ΔS metal abundance parameter has been determined for three RR Lyrae stars in the extended field of the globular cluster 47 Tucanae. The variables V12 and HV809 are found to be nonmembers with [Fe/H] values of -1.7 ± 0.03 and -1.8 ± 0.13 respectively. V9, having [Fe/H] = -1.1 ± 0.11, is a probable member since (1) it is located very near the cluster center, and (2) our [Fe/H] value is in excellent agreement with the new cluster value reported by Pilachowski, Canterna, and Wallerstein.

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