1 December 1991 Adaptive optics system tests at the ESO 3.6-m telescope
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This paper reports the results of the observations made with the VLT Adaptive Optics Prototype System 'COME-ON' at the ESO 3.6 meter telescope. The analysis of uncorrected and corrected images in the near-IR wavelength range (below 5 microns) leads to a detailed assessment of the system performance in terms of improvement of angular resolution that nearly achieves the ideal diffraction profiles down to 1.7 micron wavelength, as well as a Strehl ratio approaching 0.6-0.8 at 3.8 microns. A resolution of 0.12 arcsec has been obtained with this system at 1.7 microns which is wavelength-dependent on the temporal parameters of the observation. The current limiting magnitude for the reference source is m sub R = 11.5 when applying the full correction capabilities of the system, and m sub R = 13 if only the wavefront tilt is corrected.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fritz Merkle, Fritz Merkle, G. Gehring, G. Gehring, Francois J. Rigaut, Francois J. Rigaut, Pierre J. Lena, Pierre J. Lena, Gerard Rousset, Gerard Rousset, Jean-Claude Fontanella, Jean-Claude Fontanella, Jean-Paul Gaffard, Jean-Paul Gaffard, "Adaptive optics system tests at the ESO 3.6-m telescope", Proc. SPIE 1542, Active and Adaptive Optical Systems, (1 December 1991); doi: 10.1117/12.48819; https://doi.org/10.1117/12.48819

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