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Metallicity and kinematics of a large sample of LMC and SMC clusters

Published online by Cambridge University Press:  01 July 2008

A. J. Grocholski ,
M. C. Parisi ,
D. Geisler ,
A. Sarajedini ,
A. A. Cole ,
J. J. Clariá  and
V. V. Smith
A. J. Grocholski
Affiliation:
Space Telescope Science Institute, USA
M. C. Parisi
Affiliation:
Observatorio Astronómico, Universidad Nacional de Córdoba, Argentina
D. Geisler
Affiliation:
Departamento de Astronomía, Universidad de Concepción, Chile
A. Sarajedini
Affiliation:
Department of Astronomy, University of Florida, USA
A. A. Cole
Affiliation:
University of Tasmania, Australia
J. J. Clariá
Affiliation:
Observatorio Astronómico, Universidad Nacional de Córdoba, Argentina
V. V. Smith
Affiliation:
Gemini Project, National Optical Astronomy Observatory, USA
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Abstract

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We have carried out a large-scale investigation of the metallicity and kinematics for a number of LMC and SMC star clusters using Ca ii triplet spectra obtained at the VLT. Our sample includes 28 LMC and 16 SMC clusters, covering a wide range of ages and spatial extent of the host galaxy. We determine mean cluster velocities to about 2 km s−1 and metallicities to 0.05 dex (random error), from about 7 members per cluster. Herein we present the main results for this study for the cluster metallicity distributions, metallicity gradients, age-metallicity relations and kinematics.

Keywords

stars: kinematicsMagellanic Cloudsgalaxies: star clusters

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