GeMS/GSAOI performances from a user perspective
Date Issued
2016
Author(s)
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Marchetti, Enrico
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Ferraro, Francesco R.
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Geisler, Douglas
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Mauro, Francesco
Abstract
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.
Coverage
Adaptive Optics Systems V
All editors
Marchetti, Enrico; Close, Laird M.; Véran, Jean-Pierre
Series
PROCEEDINGS OF SPIE
Volume
9909
Start page
99095V
Conferenece
Adaptive Optics Systems V
Conferenece place
Edinburgh, UK
Conferenece date
26 June - 1 July, 2016
Issn Identifier
0277-786X
Ads BibCode
2016SPIE.9909E..5VD
Rights
open.access