Metallicity of the globular cluster NGC 6388 based on high-resolution spectra of more than 160 giant stars

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Fig. 2.

Histogram of the RV values, from this paper, Carretta et al. (2007a; 2009b), and Carretta & Bragaglia (2018). We show in green the candidate members and in grey the non members (one star, at large positive RV, is not shown).

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