47 Tucanae, membership and metalicity of three RR Lyrae stars
Journal Article
·
· Astron. J.; (United States)
OSTI ID:5731496
The Preston ..delta..S 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.
- Research Organization:
- Yale University Observatory, Box 2023 Yale Station, New Haven, Connecticut 06520
- OSTI ID:
- 5731496
- Journal Information:
- Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 85:1; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
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