Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-03-14
Mon.Not.Roy.Astron.Soc.369:697-704,2006; Erratum-ibid.372:1888,2006
Astronomy and Astrophysics
Astrophysics
9 pages, 2 figures, accepted for publication in MNRAS
Scientific paper
10.1111/j.1365-2966.2006.10314.x
We present accurate integrated-light photometry in Johnson/Cousins V, R, and I for a sample of 28 globular clusters in the Magellanic Clouds. The majority of the clusters in our sample have reliable age and metallicity estimates available in the literature. The sample encompasses ages between 50 Myr and 7 Gyr, and metallicities ([Fe/H]) between -1.5 and 0.0 dex. The sample is dominated by clusters of ages between roughly 0.5 and 2 Gyr, an age range during which the bolometric luminosity of simple stellar populations is dominated by evolved red giant branch stars and thermally pulsing asymptotic giant branch (TP-AGB) stars whose theoretical colours are rather uncertain. The VRI colours presented in this paper have been used to calibrate stellar population synthesis model predictions.
Gilmore Diane
Goudfrooij Paul
Kissler-Patig Markus
Maraston Claudia
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