Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. Analysis of chemical properties of the Main Body

B. DE BÓRTOLI

Córdoba

Congreso; Friends of friends; 2022

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