Fig. 6
Binned RV histogram for the Gamma Vel members (note that fitting was carried out on unbinned data). Upper panel: the best fit for a model consisting of a single Gaussian population with a fraction fbin = 0.46 of unresolved binaries (see text). The fit is poor. Lower panel: the best fit for a population represented by two Gaussian components, each with an unresolved binary population.
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