Fig. 2.
Download original image
HR diagram for all targets in the sample. Evolutionary tracks and isochrones are from Brott et al. (2011) at galactic metallicity and initial rotation of ∼110 km s−1. The red line indicates the 20 M⊙ evolutionary track. Open and closed symbols are stars below and above 20 M⊙, respectively, used for the low and high mass bin in the calculation of the companion fractions (Sect. 6.2.2).
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.