Free Access

Fig. 3


Normalised χ2 map for a model of an oblate photosphere (mean limb-darkened angular diameter in horizontal axis) surrounded by a uniform disc filling the whole field-of-view (in relative flux, vertical axis). The diameter predicted by the surface-brightness relations is represented by the vertical lines and the position of the best-fit model by a white filled circle.

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.