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Fig. 4

Fig. 4 Refer to the following caption and surrounding text.

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Strehl in the K-band versus the Gaia GRP magnitude of the guide star. Points indicate the measurements with GPAO in NGS_VIS mode. The seeing conditions are proportional to the diameter of the point. The blue curves are the expectations for GPAO in NGS_VIS mode and two seeing values, the red curve is the expectation for GPAO in LGS_VIS mode with seeing 0.6″. The gray curve shows the performance of the former MACAO system of VLTI.

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