Open Access

Fig. 2.

image

Download original image

Magnitude uncertainties (σV, σI, σHα) as a function of the magnitude for the three different bands. The V and I bands show two curves since the photometry for these stars was done in both short and long exposures. Note the difference in scale between the V and I bands with respect to the Hα band.

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.