Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. I. Abundances and Velocities for a Sample of Clusters

Abstract

We have obtained near-infrared spectra covering the Ca II triplet lines for a number of stars associated with 16 SMC clusters using the VLT + FORS2. These data compose the largest available sample of SMC clusters with spectroscopically derived abundances and velocities. Our clusters span a wide range of ages and provide good areal coverage of the galaxy. Cluster members are selected using a combination of their positions relative to the cluster center as well as their abundances and radial velocities. We determine mean cluster velocities to typically 2.7 km/s and metallicities to 0.05 dex (random errors), from an average of 6.4 members per cluster. (continued in paper)

68 pages, 15 figures, Accepted to AJ Reason for the replacement: section 7 and fig. 9 have been modified according referee suggestions

References in corpus (10)

• Is the SMC Bound to the LMC? The HST Proper Motion of the SMC
• Age Determination of Six Intermediate-age SMC Star Clusters with HST/ACS
• Spectroscopic Survey of Red Giants in the SMC. I: Kinematics
• Calcium II Triplet Spectroscopy of LMC Red Giants. I. Abundances and Velocities for a Sample of Populous Clusters
• The Chemical Enrichment History of the Small Magellanic Cloud and Its Gradients
• Chemical Abundances and Kinematics in Globular Clusters and Local Group Dwarf Galaxies and Their Implications for Formation Theories of the Galactic Halo
• The Spatial Evolution of Stellar Structures in the LMC
• The Infrared Ca II triplet as metallicity indicator
• Connection between the Age Distributions of Star Clusters and Field Stars: A First Application to the Small Magellanic Cloud
• Chemical evolution of the Small Magellanic Cloud based on planetary nebulae

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