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GA: Star clusters study in the inner region of the Small Magellanic Cloud – De Bortoli

April 22 @ 11:30 am 11:45 am CMT

We present the results of the chemical analysis of 6 star clusters in the inner region of the Small Magellanic Cloud (SMC). We used near infrared spectra obtained with GMOS (GEMINI-S) in the region of Calcium Triplet (CaT) lines of red giant stars belonging to the star clusters and their surrounding fields.
We measured radial velocities and equivalent width of CaT lines and we determined the mean cluster and field metallicity of each cluster.We enlarged this sample with information available in the literature for star clusters studied with the same technique, obtaining a final sample of 58 star clusters with CaT metalicities. Finally, we analyzed the chemical evolution of the SMC.

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