| DOI | Resolve DOI: https://doi.org/10.1017/S1743921307007958 |
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| Author | Search for: Calamida, A.; Search for: Bono, G.; Search for: Freyhammer, L. M.; Search for: Grundahl, F.; Search for: Corsi, C. E.; Search for: Stetson, P. B.1; Search for: Buonanno, R.; Search for: Hilker, M.; Search for: Richtler, T. |
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| Affiliation | - National Research Council of Canada. NRC Herzberg Institute of Astrophysics
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| Format | Text, Article |
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| Conference | IAU Symposium 241 Stellar Populations as Building Blocks of Galaxies, December 10-16, 2006, Canary Islands, Spain |
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| Subject | globular clusters; general — globular clusters |
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| Abstract | We adopted uvby Strömgren photometry to investigate the metallicity distribution of ω Cen Red Giant (RG) stars. We provided a new empirical calibration of the Str¨omgren m1 ≡ (v−b)−(b−y) metallicity index based on cluster stars. The new calibration has been applied to a sample of ω Cen RGs. The shape of the estimated metallicity distribution is clearly asymmetric, with a sharp cut-off at low metallicities ([F e/H] < −2.0) and a metal-rich tail up to [F e/H] ∼ 0.0. Two main metallicity peaks have been identified, around [F e/H] ≈ −1.9 and −1.3 dex, and a metal-rich shoulder at ≈ −0.2 dex. |
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| Publication date | 2007 |
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| In | |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 13054087 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 064af867-12d1-4db7-8d0c-0b5c886a71b9 |
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| Record created | 2009-11-25 |
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| Record modified | 2020-05-10 |
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