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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 660946.0, MPI für Astronomie / Publikationen_mpia
Status of the ARGOS ground layer adaptive optics system
Authors:Gässler, W.; Rabien, S.; Esposito, S.; Lloyd-Hart, M.; Barl, L.; Beckmann, U.; Bluemchen, T.; Bonaglia, M.; Borelli, J. L.; Brusa, G.; Brynnel, J.; Buschkamp, P.; Busoni, L.; Carbonaro, L.; Connot, C.; Davies, R.; Deysenroth, M.; Durney, O.; Green, R.; Gemperlein, H.; Gasho, V.; Haug, M.; Hubbard, P.; Ihle, S.; Kulas, M.; Lederer, R.; Lewis, J.; Loose, C.; Lehmitz, M.; Noenickx, J.; Nussbaum, E.; Orban de Xivry, G.; Peter, D.; Quirrenbach, A.; Rademacher, M.; Raab, W.; Storm, J.; Schwab, C.; Vaitheeswaran, V.; Ziegleder, J.
Date of Publication (YYYY-MM-DD):2012
Title of Proceedings:Adaptive Optics Systems III
Start Page:id. 844702-844702
End Page:10
Volume (in Series):8447
Name of Conference/Meeting:Adaptive Optics Systems III
Audience:Not Specified
Abstract / Description:ARGOS the Advanced Rayleigh guided Ground layer adaptive Optics System for the LBT (Large Binocular Telescope) is built by a German-Italian-American consortium. It will be a seeing reducer correcting the turbulence in the lower atmosphere over a field of 2' radius. In such way we expect to improve the spatial resolution over the seeing of about a factor of two and more and to increase the throughput for spectroscopy accordingly. In its initial implementation, ARGOS will feed the two near-infrared spectrograph and imager - LUCI I and LUCI II. The system consist of six Rayleigh lasers - three per eye of the LBT. The lasers are launched from the back of the adaptive secondary mirror of the LBT. ARGOS has one wavefront sensor unit per primary mirror of the LBT, each of the units with three Shack-Hartmann sensors, which are imaged on one detector. In 2010 and 2011, we already mounted parts of the instrument at the telescope to provide an environment for the main sub-systems. The commissioning of the instrument will start in 2012 in a staged approach. We will give an overview of ARGOS and its goals and report about the status and new challenges we encountered during the building phase. Finally we will give an outlook of the upcoming work, how we will operate it and further possibilities the system enables by design.
Comment of the Author/Creator:Date: 2012, July 1, 2012
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
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