Press Release
Free Access

Fig. 3


X-ray flux in 1–20 Å versus stellar age for solar analogs. The six stars studied by Ribas et al. (2005), including the Sun, are shown as open circles and the corresponding power law fit as a solid line. ι Hor is displayed with a filled circle. Vertical lines in ι Hor and the Sun account for their activity cycle as measured in the ASCA 0.5–10 keV band (Orlando et al. 2001). All fluxes have been normalized to a distance of 1 AU from the star and a stellar radius of 1   R.

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.