Free Access
Fig. 3
VFTS spectra of type O2. λ4026 is a blend of He i and He ii, with the latter predominating at early-O types. C iii λλ4069, 4650 and N iii λ4640 are blends, primarily with other lines from the same multiplets in O-type spectra. Strong nebular emission lines are truncated to avoid overlapping adjacent spectra.
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.