Open Access
Fig. 3.
Empirically derived mass-loss rates as a function of the spectral type for O stars of luminosity classes I, III, and V (see legend). Lines show linear fits for each luminosity class. The mass-loss rates of giants and supergiants are uncertain within a factor of 2–3, i.e., Δlog Ṁ ≈ 0.3−0.5.
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.