Abstract
view Abstract Citations (22) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The metal abundances of RR LYR stars in the globular clusters NGC 6712 and NGC 6723. Smith, H. A. Abstract The spectroscopic metal abundance parameter A S has been measured for RR Lyrae stars in the globular clusters NGC 6712 and NGC 6723. Mean ΔS values are 2.6±0.4 for NGC 6712 and 2.8±0.5 for NGC 6723, corresponding to [Fe/H] ∼-0.7 on Butler's abundance scale. This iron abundance is considerably higher than those found for 47 Tuc and M7l in recent analyses of high dispersion spectra of red giant stars. Publication: The Astrophysical Journal Pub Date: November 1981 DOI: 10.1086/159419 Bibcode: 1981ApJ...250..719S Keywords: Blue Stars; Giant Stars; Globular Clusters; Lyra Constellation; Metallic Stars; Stellar Spectra; Abundance; H Lines; Iron; Red Giant Stars; Stellar Spectrophotometry; Astrophysics full text sources ADS | data products SIMBAD (13)
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