ARGOS the laser star adaptive optics for the LBT

S. Rabien, L. Barl, U. Beckmann, T. Blümchen, M. Bonaglia, J. L. Borelli, J. Brynnel, L. Busoni, L. Carbonaro, C. Connot, R. Davies, M. Deysenroth, O. Durney, S. Esposito, V. Gasho, W. Gässler, H. Gemperlein, R. Genzel, R. Green, M. Hart & 18 others P. Hubbard, M. Kulas, C. Loose, K. Newman, J. Noenickx, Eddy Nussbaum, G. Orban de Xivry, D. Peter, A. Quirrenbach, W. Raab, M. Rademacher, H. W. Rix, P. Salinari, C. Schwab, J. Storm, V. Vaitheeswaran, G. Weigelt, J. Ziegleder

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

Abstract

ARGOS - the Laser Guide Star adaptive optics facility for the Large Binocular Telescope will enable a wide field high order ground layer correction of the atmospheric induced distortions. By projecting a constellation of multiple laser guide stars above each of the 8.4m primary mirrors of the LBT, ARGOS in its ground layer mode will enable a wide field adaptive optics correction for multi object spectroscopy. ARGOS implements high power pulsed green lasers and makes use of Rayleigh scattering for the guide star creation. The geometric relations of this setup in guide star height vs. primary diameter are quite comparable to an ELT with sodium guide stars. The use of LBT's adaptive secondary mirror, gated wavefront sensors, a prime focus calibration system and the laser constellation shows several aspects that can be used as path-finder technology for the planned ELTs. In already planned upgrade steps with a hybrid Sodium-Rayleigh combination ARGOS will enable MCAO and MOAO implementations at LBT allowing unique astronomical observations.

Original languageEnglish
Title of host publicationSecond International Conference on Adaptive Optics for Extremely Large Telescopes
Subtitle of host publicationproceedings
Place of PublicationPalaiseau, France
PublisherOffice National d'Etudes et de Recherches Aerospatiales, ONERA
Number of pages8
Publication statusPublished - 2011
Externally publishedYes
EventSecond International Conference on Adaptive Optics for Extremely Large Telescopes - Victoria, BC, Canada
Duration: 25 Sep 201130 Sep 2011
Conference number: 2nd

Other

OtherSecond International Conference on Adaptive Optics for Extremely Large Telescopes
Abbreviated titleAO for ELT 2
CountryCanada
CityVictoria, BC
Period25/09/1130/09/11

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  • Cite this

    Rabien, S., Barl, L., Beckmann, U., Blümchen, T., Bonaglia, M., Borelli, J. L., ... Ziegleder, J. (2011). ARGOS the laser star adaptive optics for the LBT. In Second International Conference on Adaptive Optics for Extremely Large Telescopes: proceedings Palaiseau, France: Office National d'Etudes et de Recherches Aerospatiales, ONERA.