21 July 2014 Status of the ARGOS project
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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.
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Sebastian Rabien, Sebastian Rabien, Lothar Barl, Lothar Barl, Udo Beckmann, Udo Beckmann, Marco Bonaglia, Marco Bonaglia, José Luis Borelli, José Luis Borelli, Joar Brynnel, Joar Brynnel, Peter Buschkamp, Peter Buschkamp, Lorenzo Busoni, Lorenzo Busoni, Julian Christou, Julian Christou, Claus Connot, Claus Connot, Richard Davies, Richard Davies, Matthias Deysenroth, Matthias Deysenroth, Simone Esposito, Simone Esposito, Wolfgang Gässler, Wolfgang Gässler, Hans Gemperlein, Hans Gemperlein, Michael Hart, Michael Hart, Martin Kulas, Martin Kulas, Michael Lefebvre, Michael Lefebvre, Michael Lehmitz, Michael Lehmitz, Tommaso Mazzoni, Tommaso Mazzoni, Edmund Nussbaum, Edmund Nussbaum, Gilles Orban de Xivry, Gilles Orban de Xivry, Diethard Peter, Diethard Peter, Andreas Quirrenbach, Andreas Quirrenbach, Walfried Raab, Walfried Raab, Gustavo Rahmer, Gustavo Rahmer, Jesper Storm, Jesper Storm, Julian Ziegleder, Julian Ziegleder, } "Status of the ARGOS project", Proc. SPIE 9148, Adaptive Optics Systems IV, 91481B (21 July 2014); doi: 10.1117/12.2055932; https://doi.org/10.1117/12.2055932
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