Open Access

Fig. 3

image

Download original image

Comparison of reduced spectra of SK-68D137 obtained with the different flat-fielding strategies when the SCIENCE target and the FLUX standard star have been observed on different nights. Red indicates when different FF frames were used to reduce the observations of the SCIENCE and FLUX stars. Black indicates when the same FF frames were used.

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.