Free Access
Fig. 5
Central part of a raw image from a one-hour science exposure with inverted color map, illustrating how the emission lines in the ThAr spectra create spots all over the detector. These spots are used to track the effective spectral resolution and flexure in the Cassegrain-mounted spectrograph.
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.