Free Access

Fig. 2


Evolution of the photometric precision for raw data with the aperture radius according to different centring techniques in a complete dataset (e.g., AOR: 42614016). The 2D Gaussian adjustment (green asterisks) provides the best photometric precision for raw data in comparison to a centroid fit (magenta crosses), a double 1D Gaussian fit from the previously computed x- or y-FWHM (cyan boxes and red diamonds respectively), and a 1D Gaussian fit with a fixed FWHM (blue stars), in particular for small aperture radii.

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.