Open Access

Fig. 8

image

Download original image

L-band instrumental visibility measured with MATISSE standalone and GRA4MAT on the ATs vs decreasing coherence time (top) and increasing seeing (bottom). The joint seeing and coherence time probabilities for Paranal are also shown as percentages. The GRA4MAT contrast is higher and more stable in good conditions, and does not degrade as fast in worsening conditions.

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.