Free Access
Fig. 8
Histograms of the mean 
as a function of the Hipparcos B − V colour index for all the sample (blue) and only for the inactive stars ( ≤ − 4.80 dex) located beyond the Vaughan-Preston gap (red). Both samples are flat for the hotter stars, yet they diverge when approaching the cooler K stars.
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.