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Paper detail

The age of old Magelanic Cloud clusters. I: NGC 2257.

Deep CCD photometry down to V=24.5 is presented for the old Magellanic Globular cluster NGC 2257. The main result cna be summarized as follows: i) the RGB Bump has been detected at V=18.7+-0.1, and is compatible with determination of this feature in GGCs; ii) NGC 2257 seems to be 2-3 Gyrs younger than a typical GGC; iii) the helium abundance has been estimated to be Y=0.21+-0.03, using the R- method as calibrated by Buzzoni et al., 1983.

preprint1995arXivOpen access
V. TestaF. R. FerraroE. BrocatoV. Castellani
astro-ph
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Open access4 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
Citations: 0Reviews: 0Saves: 0Code: not linkedDataset: not linkedInstitutions: 0

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V. TestaF. R. FerraroE. BrocatoV. Castellani

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