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27 July 2016 GeMS/GSAOI performances from a user perspective
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Ground-based near-IR imagers assisted by Multi Conjugate Adaptive Optics (MCAO) systems are the technological frontier to obtain high-quality stellar photometry in crowded fields at the highest possible spatial resolution. The Gemini MCAO System (GeMS) feeding the Gemini South Adaptive Optics Imager (GSAOI) is the only facility of this kind currently available to the Community. We used a set of images obtained in the J and Ks bands of the central regions of two Galactic bulge globular clusters (Liller 1 and NGC 6624) with GeMS/GSAOI, under significantly different atmospheric conditions. We characterized the performances of the system in terms of efficiency and uniformity of the Point Spread Function (PSF) over the field of view with varying seeing, airmass and tip-tilt star asterisms. We also compared the PSF performances of GeMS/GSAOI with the HST/ACS ones in the F606W and F814W bands.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Emanuele Dalessandro, Sara Saracino, Livia Origlia, Enrico Marchetti, Francesco R. Ferraro, Barbara Lanzoni, Douglas Geisler, and Francesco Mauro "GeMS/GSAOI performances from a user perspective", Proc. SPIE 9909, Adaptive Optics Systems V, 99095V (27 July 2016);


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