Fig. 11

CIAO: the photograph shows the Coudé room of UT4 in June 2016. The big central structure is the star separator. The CIAO wavefront sensor comprises the tower structure on the left side, with the cryostat connected to a pump on the floor, and the readout electronics located next to it (light gray box connected to blue cooling pipes). The visual wavefront sensor MACAO is located at the lower right.
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