Abstract

The last results obtained with the adaptive optics (AO) system COME-ON are reported here. A new set-up, pushing the servo-loop bandwidth up to 25 Hz, allowed to get diffraction limited long exposure images down to 1.7 μm on a 3.6-m telescope (i.e. 96 milliarcsec). Compared with the turbulent case, gains in Strehl ratio $(\mathcal{S})$ up to 13 are reported. Profile of partially corrected images are shown, which confirm partly the predicted profiles. These results are based on data collected at the ESO 3.6-m telescope, La Silla, Chile, on April 1991.

© 1992 Optical Society of America