Open Access
Fig. 6
a) Luminosity effects at sdO9; b) abundance effects at sdO9 – sdB0. The lines marked are HeI λλ 4121, 4144, 4387, 4471, 4713; NIII λλ 4379, 4511–15, 4640 blend; CIII λ 4650 blend; H + HeII λλ 4101, 4340, 4861; and HeII λλ 4200, 4541, 4686.
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.