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Proceedings Paper

Status of the ARGOS project
Author(s): Sebastian Rabien; Lothar Barl; Udo Beckmann; Marco Bonaglia; José Luis Borelli; Joar Brynnel; Peter Buschkamp; Lorenzo Busoni; Julian Christou; Claus Connot; Richard Davies; Matthias Deysenroth; Simone Esposito; Wolfgang Gässler; Hans Gemperlein; Michael Hart; Martin Kulas; Michael Lefebvre; Michael Lehmitz; Tommaso Mazzoni; Edmund Nussbaum; Gilles Orban de Xivry; Diethard Peter; Andreas Quirrenbach; Walfried Raab; Gustavo Rahmer; Jesper Storm; Julian Ziegleder
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Paper Abstract

ARGOS is the Laser Guide Star and Wavefront sensing facility for the Large Binocular Telescope. With first laser light on sky in 2013, the system is currently undergoing commissioning at the telescope. We present the overall status and design, as well as first results on sky. Aiming for a wide field ground layer correction, ARGOS is designed as a multi- Rayleigh beacon adaptive optics system. A total of six powerful pulsed lasers are creating the laser guide stars in constellations above each of the LBTs primary mirrors. With a range gated detection in the wavefront sensors, and the adaptive correction by the deformable secondary’s, we expect ARGOS to enhance the image quality over a large range of seeing conditions. With the two wide field imaging and spectroscopic instruments LUCI1 and LUCI2 as receivers, a wide range of scientific programs will benefit from ARGOS. With an increased resolution, higher encircled energy, both imaging and MOS spectroscopy will be boosted in signal to noise by a large amount. Apart from the wide field correction ARGOS delivers in its ground layer mode, we already foresee the implementation of a hybrid Sodium with Rayleigh beacon combination for a diffraction limited AO performance.

Paper Details

Date Published: 21 July 2014
PDF: 13 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91481B (21 July 2014); doi: 10.1117/12.2055932
Show Author Affiliations
Sebastian Rabien, Max-Planck-Institut für extraterrestrische Physik (Germany)
Lothar Barl, Max-Planck-Institut für extraterrestrische Physik (Germany)
Udo Beckmann, Max-Planck-Institut für Radioastronomie (Germany)
Marco Bonaglia, INAF - Osservatorio Astrofisico di Arcetri (Italy)
José Luis Borelli, Max-Planck-Institut für Astronomie (Germany)
Joar Brynnel, Large Binocular Telescope Observatory (United States)
Peter Buschkamp, Max-Planck-Institut für extraterrestrische Physik (Germany)
Lorenzo Busoni, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Julian Christou, Large Binocular Telescope Observatory (United States)
Claus Connot, Max-Planck-Institut für Radioastronomie (Germany)
Richard Davies, Max-Planck-Institut für extraterrestrische Physik (Germany)
Matthias Deysenroth, Max-Planck-Institut für extraterrestrische Physik (Germany)
Simone Esposito, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Wolfgang Gässler, Max-Planck-Institut für Astronomie (Germany)
Hans Gemperlein, Max-Planck-Institut für extraterrestrische Physik (Germany)
Michael Hart, The Univ. of Arizona (United States)
Martin Kulas, Max-Planck-Institut für Astronomie (Germany)
Michael Lefebvre, Large Binocular Telescope Observatory (United States)
Michael Lehmitz, Max-Planck-Institut für Astronomie (Germany)
Tommaso Mazzoni, INAF - Osservatorio Astrofisico di Arcetri (Italy)
Edmund Nussbaum, Max-Planck-Institut für Radioastronomie (Germany)
Gilles Orban de Xivry, Max-Planck-Institut für extraterrestrische Physik (Germany)
Diethard Peter, Max-Planck-Institut für Astronomie (Germany)
Andreas Quirrenbach, Landessternwarte Heidelberg (Germany)
Walfried Raab, Max-Planck-Institut für extraterrestrische Physik (Germany)
Gustavo Rahmer, Large Binocular Telescope Observatory (United States)
Jesper Storm, Leibniz-Institut für Astrophysik Potsdam (Germany)
Julian Ziegleder, Max-Planck-Institut für extraterrestrische Physik (Germany)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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