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ARGOS: the laser guide star system for the LBT
Rabien, S.; Ageorges, N.; Barl, L. et al.
2010In Adaptive Optics Systems II
 

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Abstract :
[en] ARGOS is the Laser Guide Star adaptive optics system for the Large Binocular Telescope. Aiming for a wide field adaptive optics correction, ARGOS will equip both sides of LBT with a multi laser beacon system and corresponding wavefront sensors, driving LBT's adaptive secondary mirrors. Utilizing high power pulsed green lasers the artificial beacons are generated via Rayleigh scattering in earth's atmosphere. ARGOS will project a set of three guide stars above each of LBT's mirrors in a wide constellation. The returning scattered light, sensitive particular to the turbulence close to ground, is detected in a gated wavefront sensor system. Measuring and correcting the ground layers of the optical distortions enables ARGOS to achieve a correction over a very wide field of view. Taking advantage of this wide field correction, the science that can be done with the multi object spectrographs LUCIFER will be boosted by higher spatial resolution and strongly enhanced flux for spectroscopy. Apart from the wide field correction ARGOS delivers in its ground layer mode, we foresee a diffraction limited operation with a hybrid Sodium laser Rayleigh beacon combination.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Rabien, S.;  Max-Planck-Institut für extraterrestrische Physik
Ageorges, N.
Barl, L.
Beckmann, U.
Blümchen, T.
Bonaglia, M.
Borelli, J. L.
Brynnel, J.
Busoni, L.
Carbonaro, L.
Davies, R.
Deysenroth, M.
Durney, O.
Elberich, M.
Esposito, S.
Gasho, V.
Gässler, W.
Gemperlein, H.
Genzel, R.
Green, R.
Haug, M.
Hart, M. L.
Hubbard, P.
Kanneganti, S.
Masciadri, E.
Noenickx, J.
Orban De Xivry, Gilles  ;  Max-Planck-Institut für extraterrestrische Physik
Peter, D.
Quirrenbach, A.
Rademacher, M.
Rix, H. W.
Salinari, P.
Schwab, C.
Storm, J.
Strüder, L.
Thiel, M.
Weigelt, G.
Ziegleder, J.
More authors (28 more) Less
Language :
English
Title :
ARGOS: the laser guide star system for the LBT
Publication date :
2010
Event name :
SPIE Astronomical Telescopes and Instrumentation 2010
Event date :
2010
Audience :
International
Main work title :
Adaptive Optics Systems II
Collection name :
Proceedings of the SPIE, Volume 7736
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