Integrated-light VRI imaging photometry of globular clusters in the Magellanic Clouds

Paul Goudfrooij, Diane Gilmore, Markus Kissler-Patig, Claudia Maraston

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Pages (from-to)697-704
JournalMonthly Notices of the Royal Astronomical Society
Issue number2
Publication statusPublished - 21 Jun 2006


  • techniques : photometric
  • galaxies : evolution
  • Magellanic Clouds
  • galaxies : star clusters


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