1998PASP..110..152R -
Publ. Astron. Soc. Pac., 110, 152-164 (1998/February-0)
Performance of the Canada-France-Hawaii telescope adaptive optics bonnette.
RIGAUT F., SALMON D., ARSENAULT R., THOMAS J., LAI O., ROUAN D., VERAN J.-P., GIGAN P., CRAMPTON D., FLETCHER J.M., STILBURN J., BOYER C. and JAGOUREL P.
Abstract (from CDS):
Extensive results from the commissioning phase of PUEO, the adaptive optics instrument adaptor for the Canada–France–Hawaii telescope (CFHT), are presented and discussed. Analyses of more than 750 images recorded with a CCD and a near-IR camera on 16 nights in wavelengths from B to H are used to derive the properties of the compensated wavefront and images in a variety of conditions. The performance characteristics of the system are analyzed and presented in several ways, in terms of delivered Strehl ratios, full-width-half-maxima (FWHM), and quantities describing the improvements of both. A qualitative description is given of how the properties of the corrected images result from the structure function of the compensated phase. Under median seeing conditions, PUEO delivers essentially diffraction–limited images at H and K, images with FWHM∼0\farcs1 at J and I, and provides significant gains down to B, with guide stars as faint as R = 14. During good conditions, substantial gains were realized with guide stars as faint as R = 17. A simple user-interface and software which automatically and continuously optimizes the mode gains during observations makes the operational efficiency extremely high. A few astronomical examples are briefly discussed.(c) Astronomical Society of the Pacific
Abstract Copyright:
∼
Journal keyword(s):
Astronomical Instrumentation
Simbad objects:
3
Full paper
View the references in ADS
To bookmark this query, right click on this link: simbad:1998PASP..110..152R and select 'bookmark this link' or equivalent in the popup menu