First performance of the GeMS+GMOS system | Zendy

Pascale Hibon | Zendy; Benoît Neichel | Zendy; Vincent Garrel | Zendy; Benjamin Prout | Zendy; François Rigaut | Zendy; Alice Koning | Zendy; Gaetano Sivo | Zendy; G. Gimeno | Zendy; E. R. Carrasco | Zendy; Cláudia Winge | Zendy; Peter Pessev | Zendy; Andrew Serio | Zendy; Gustavo Arriagada | Zendy

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First performance of the GeMS+GMOS system

Author(s) -

Pascale Hibon,

Benoît Neichel,

Vincent Garrel,

Benjamin Prout,

François Rigaut,

Alice Koning,

Gaetano Sivo,

G. Gimeno,

E. R. Carrasco,

Cláudia Winge,

Peter Pessev,

Andrew Serio,

Gustavo Arriagada

Publication year - 2014

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.2055196

Subject(s) - upgrade , observatory , spectrograph , constellation , mode (computer interface) , computer science , physics , optics , remote sensing , astronomy , operating system , geology , spectral line

During the 2012 commissioning of the Gemini MCAO System (GeMS) in Gemini South Observatory, we briefly explored the performance improvement brought by pairing GeMS with the Gemini Multi-Object Spectrograph (GMOS), compared to GMOS in natural seeing mode. GMOS is an instrument sensitive in the visible band with imaging and spectroscopic capabilities, hence pushing MCAO toward the visible, a mode for which it was not specifically designed. We report in this paper the first results obtained with the GeMS +GMOS pair. Several globular clusters were observed in imaging mode only. We have derived performance in term of FWHM and determined the improvement against natural seeing. We also obtain photometric, relative and absolute astrometric precision for the AO enhanced images. We also studied the influence of the NGS constellation on the photometric performance. Finally, we also looked at the expected performance of the GeMS+GMOS system once the CCD upgrade, scheduled during 2014, will occur.

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