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Proceedings Paper

GeMS/GSAOI performances from a user perspective
Author(s): Emanuele Dalessandro; Sara Saracino; Livia Origlia; Enrico Marchetti; Francesco R. Ferraro; Barbara Lanzoni; Douglas Geisler; Francesco Mauro
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Paper 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.

Paper Details

Date Published: 27 July 2016
PDF: 10 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99095V (27 July 2016); doi: 10.1117/12.2230978
Show Author Affiliations
Emanuele Dalessandro, Univ. of Bologna (Italy)
INAF - Osservatorio Astronomico di Bologna (Italy)
Sara Saracino, Univ. of Bologna (Italy)
INAF - Osservatorio Astronomico di Bologna (Italy)
Livia Origlia, INAF - Osservatorio Astronomico di Bologna (Italy)
Enrico Marchetti, European Southern Observatory (Germany)
Francesco R. Ferraro, Univ. of Bologna (Italy)
Barbara Lanzoni, Univ. of Bologna (Italy)
Douglas Geisler, Univ. de Concepción (Chile)
Francesco Mauro, Univ. de Concepción (Chile)
Millennium Institute of Astrophysics (Chile)


Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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