Extended main-sequence turnoff and red clump in intermediate-age star clusters: A study of NGC 419
F. Dresbach,
D. Massari,
B. Lanzoni
et al.
Abstract:With the goal of untangling the origin of extended main-sequence turnoffs (eMSTOs) and extended red clumps (eRCs) in star clusters, in this work we present the study of the intermediate-age cluster NGC 419, situated along the Bridge of the Small Magellanic Cloud. To this aim, we analyzed multi-epoch, high angular resolution observations acquired with the Hubble Space Telescope for this dynamically young cluster, which enabled the determination of precise proper motions and therefore the assessment of the clust… Show more
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