Free Access

Fig. 4


Position of the analyzed SMC WN stars in the log T − log Rt-plane. The symbols reflect the WN subtype (see inlet). The hydrogen abundances is indicated in three steps by means of the filling color (purple: XH ≥ 50%, red: XH = 30 − 50%, orange: XH ≤ 30%).

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.