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Proceedings Paper

ARGOS: the laser guide star system for the LBT
Author(s): S. Rabien; N. Ageorges; L. Barl; U. Beckmann; T. Blümchen; M. Bonaglia; J. L. Borelli; J. Brynnel; L. Busoni; L. Carbonaro; R. Davies; M. Deysenroth; O. Durney; M. Elberich; S. Esposito; V. Gasho; W. Gässler; H. Gemperlein; R. Genzel; R. Green; M. Haug; M. L. Hart; P. Hubbard; S. Kanneganti; E. Masciadri; J. Noenickx; G. Orban de Xivry; D. Peter; A. Quirrenbach; M. Rademacher; H. W. Rix; P. Salinari; C. Schwab; J. Storm; L. Strüder; M. Thiel; G. Weigelt; J. Ziegleder
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Paper Abstract

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.

Paper Details

Date Published: 28 July 2010
PDF: 12 pages
Proc. SPIE 7736, Adaptive Optics Systems II, 77360E (28 July 2010); doi: 10.1117/12.857210
Show Author Affiliations
S. Rabien, Max-Planck-Institut für extraterrestrische Physik (Germany)
N. Ageorges, Max-Planck-Institut für extraterrestrische Physik (Germany)
L. Barl, Max-Planck-Institut für extraterrestrische Physik (Germany)
U. Beckmann, Max-Planck-Institut für Radioastronomie (Germany)
T. Blümchen, Max-Planck-Institut für Astronomie (Germany)
M. Bonaglia, Osservatorio Astrofisico di Arcetri (Italy)
J. L. Borelli, Max-Planck-Institut für Astronomie (Germany)
J. Brynnel, Large Binocular Telescope Observatory (United States)
L. Busoni, Osservatorio Astrofisico di Arcetri (Italy)
L. Carbonaro, Osservatorio Astrofisico di Arcetri (Italy)
R. Davies, Max-Planck-Institut für extraterrestrische Physik (Germany)
M. Deysenroth, Max-Planck-Institut für extraterrestrische Physik (Germany)
O. Durney, Steward Observatory, The Univ. of Arizona (United States)
M. Elberich, Max-Planck-Institut für Radioastronomie (Germany)
S. Esposito, Osservatorio Astrofisico di Arcetri (Italy)
V. Gasho, The Univ. of Arizona (United States)
W. Gässler, Max-Planck-Institut für Astronomie (Germany)
H. Gemperlein, Max-Planck-Institut für extraterrestrische Physik (Germany)
R. Genzel, Max-Planck-Institut für extraterrestrische Physik (Germany)
R. Green, Large Binocular Telescope Observatory (United States)
M. Haug, Max-Planck-Institut für extraterrestrische Physik (Germany)
M. L. Hart, Steward Observatory, The Univ. of Arizona (United States)
P. Hubbard, Steward Observatory, The Univ. of Arizona (United States)
S. Kanneganti, Max-Planck-Institut für extraterrestrische Physik (Germany)
E. Masciadri, Osservatorio Astrofisico di Arcetri (Italy)
J. Noenickx, Steward Observatory, The Univ. of Arizona (United States)
G. Orban de Xivry, Max-Planck-Institut für extraterrestrische Physik (Germany)
D. Peter, Max-Planck-Institut für Astronomie (Germany)
A. Quirrenbach, Landessternwarte Heidelberg (Germany)
M. Rademacher, Steward Observatory, The Univ. of Arizona (United States)
H. W. Rix, Max-Planck-Institut für Astronomie (Germany)
P. Salinari, Osservatorio Astrofisico di Arcetri (Italy)
C. Schwab, Landessternwarte Heidelberg (Germany)
J. Storm, Astrophysikalisches Institut Potsdam (Germany)
L. Strüder, Max-Planck-Institut Halbleiterlabor (Germany)
M. Thiel, Max-Planck-Institut für extraterrestrische Physik (Germany)
G. Weigelt, Max-Planck-Institut für Radioastronomie (Germany)
J. Ziegleder, Max-Planck-Institut für extraterrestrische Physik (Germany)


Published in SPIE Proceedings Vol. 7736:
Adaptive Optics Systems II
Brent L. Ellerbroek; Michael Hart; Norbert Hubin; Peter L. Wizinowich, Editor(s)

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