Commissioning of the adaptive optics supported LUCI instruments at the Large Binocular Telescope: results

Jochen Heidt; Alexander Pramskiy; David Thompson; Walter Seifert; Roland Gredel; Doug Miller; Greg Taylor; Simone Esposito; Alfio Puglisi; Enrico Pinna; Andreas Quirrenbach

doi:10.1117/12.2313506

6 July 2018 Commissioning of the adaptive optics supported LUCI instruments at the Large Binocular Telescope: results

Jochen Heidt, Alexander Pramskiy, David Thompson, Walter Seifert, Roland Gredel, Doug Miller, Greg Taylor, Simone Esposito, Alfio Puglisi, Enrico Pinna, Andreas Quirrenbach

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107020B (2018) https://doi.org/10.1117/12.2313506
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The LUCI instruments are a pair of NIR imagers and multi-object spectrographs located at the front bent Gregorian foci of the Large Binocular Telescope (LBT). One of their special features is their diffraction-limited imaging and long-slit spectroscopic capability in combination with the LBT adaptive secondary mirrors. This allows to achieve a spatial resolution down to 60mas and a spectral resolution of up to 25000. Switching from seeing-limited to diffraction-limited observations changes several operational aspects due to features such as the non-common path aberration or the flexure of the instruments. They all require novel techniques to optimize the image quality and to maximize the scientific return. Non-common path aberration can be corrected via look-up tables. For active flexure compensation the night-sky emission is used. The commissioning of the instruments in diffraction-limited mode on sky is largely finished and the instruments have been handed over to the LBT in April 2018.

Conference Presentation

Citation Download Citation

Jochen Heidt, Alexander Pramskiy, David Thompson, Walter Seifert, Roland Gredel, Doug Miller, Greg Taylor, Simone Esposito, Alfio Puglisi, Enrico Pinna, and Andreas Quirrenbach "Commissioning of the adaptive optics supported LUCI instruments at the Large Binocular Telescope: results", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107020B (6 July 2018); https://doi.org/10.1117/12.2313506

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