S/N of individual spectra of benchmark stars. In an initial phase, spectra were obtained in a range of S/N values. Later, we aimed at obtaining at least three exposures per benchmarks star per setup, with a combined S/N> 100 per pixel (without saturating).
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.