Open Access
Fig. 12

Download original image
Fraction of energy available for the spectrograph in a 0.2″ slit as a function of the optical seeing is shown for the J (left) and K (right) band for an AO natural guide star (NGS) of V = 10, 12, 16 mag and without AO correction.
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.