Large Binocular Telescope; Laser guide stars; Ground-layer adaptive optics; Laser guide star; Multi-object spectrograph; Operational aspects; Wave-front sensing; Wide field imagers; Control and Systems Engineering; Instrumentation; Space and Planetary Science; Astronomy and Astrophysics; Mechanical Engineering
Abstract :
[en] We present the first results of Argos, the multiple laser guide star and wavefront sensing facility for the Large Binocular Telescope. This system will deliver an improvement by a factor of two in FWHM over the 4′×4′ field of view of both Luci instruments. Luci 1 and Luci 2 are two near-infrared wide field imagers and multi-object spectrographs which capability and efficiency will be boosted by the increased resolution and encircled energy. The first on-sky ground-layer adaptive optics (GLAO) loop closure with Argos has been achieved in Fall 2014 on the right eye of the telescope. Stable operations in closed-loop have been demonstrated in May 2015 with hour-long integration and repeated good performances over several nights. Since then, the commissioning has been proceeding with the installation of the left system and the beginning of the left on-sky operations in this Fall 2015. The next achievements will be to strengthen the operational aspects and to perform science demonstration in both imaging and spectroscopic modes. We first present the current status of the project and review the operational aspects. Then, we analyze the first combined Luci and Argos observations and discuss the performances and the gains provided by Argos in term of scientific capabilities.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Orban De Xivry, Gilles ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR) ; Max Planck Institut für Extraterrestrische Physik, Garching, Germany
Rabien, S.; Max Planck Institut für Extraterrestrische Physik, Garching, Germany
Busoni, L.; INAF Osservatorio Astrofisico di Arcetri, Firenze, Italy
Gaessler, W.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Bonaglia, M.; INAF Osservatorio Astrofisico di Arcetri, Firenze, Italy
Borelli, J.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Deysenroth, M.; Max Planck Institut für Extraterrestrische Physik, Garching, Germany
Esposito, S.; INAF Osservatorio Astrofisico di Arcetri, Firenze, Italy
Gemperlein, H.; Max Planck Institut für Extraterrestrische Physik, Garching, Germany
Kulas, M.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Lefebvre, M.; Large Binocular Observatory, Tucson, United States
Mazzoni, T.; INAF Osservatorio Astrofisico di Arcetri, Firenze, Italy
Peter, D.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Puglisi, A.; INAF Osservatorio Astrofisico di Arcetri, Firenze, Italy
Raab, W.; European Space Agency, ESTEC, Noordwijk, Netherlands
Rahmer, G.; Large Binocular Observatory, Tucson, United States
Sivitilli, A.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Storm, J.; Leibniz-Institut für Astrophysik Potsdam, Potsdam, Germany
Ziegleder, J.; Max Planck Institut für Extraterrestrische Physik, Garching, Germany
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