Open Access
Fig. 3.
Download original image
Spectral distribution of O Vz (orange) and O V (gray) stars analyzed in the NGC 346 region. The gray dashed area represents the region defined by A16, where the Vz spectral feature is absent in stars with spectral later type than O8.5.
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.