Fig. 7

The metallicity – ⟨W′⟩ relation is plotted here for calibration clusters (filled diamonds) plus two metal-poor stars from Starkenburg et al. (2010, asterisks). Overplotted is a polynomial fit of degree n = 5, which shows that our calibration relation (dashed line) cannot be used outside the metallicity range defined by the standard clusters.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.