Fig. 6
Download original image
Selection of low-metallicity stellar candidates in USS DR1, following the criteria proposed by Placco et al. (2022): (J0395-J0410)-(J0660-J0861) ≤ 0.15 and (J0395-J0660)-2x(g-i) ≤ –0.15. The points are color-coded according to the (J0378-i)-(J0410-J0660) color; only stars with measurements below 0.8 in this color are included in our final selection.
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.