Fig. 2.
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Example spectra of a few stars in our sample. Right panel: from top to bottom, example spectra of a blue loop star, a RSG, a blue supergiant, a MS, and a red giant. Left panel: (F439W–F569W, F569W) CMD of NGC 1850. The positions of the corresponding stars are indicated. The RSG stars of NGC 1850A selected for the kinematic (Sect. 3.1) and chemical (Sect. 3.2) analysis are marked by red dots.
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