Free Access
Fig. 4.

Relation of activity to rotation for all 302 stars we analyzed, displayed with a color code for the stellar mass. Top: relation in X-ray luminosity vs. rotation period space. Bottom: relation in terms of the ratio between X-ray and bolometric luminosities as a function of Rossby number.
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.