GRAAL on the mountaintop

Jérôme Paufique; Pierre-Yves Madec; Johann Kolb; Harald Kuntschner; Javier Argomedo; Mario J. Kiekebusch; Robert H. Donaldson; Robin Arsenault; Ralf Siebenmorgen; Christian Soenke; Sebastien Tordo; Ralf D. Conzelmann; Andreas Jost; Javier Reyes-Moreno; Mark Downing; Pascale Hibon; Jose Javier Valenzuela; Pierre Haguenauer

doi:10.1117/12.2232826

27 July 2016 GRAAL on the mountaintop

Jérôme Paufique, Pierre-Yves Madec, Johann Kolb, Harald Kuntschner, Javier Argomedo, Mario J. Kiekebusch, Robert H. Donaldson, Robin Arsenault, Ralf Siebenmorgen, Christian Soenke, Sebastien Tordo, Ralf D. Conzelmann, Andreas Jost, Javier Reyes-Moreno, Mark Downing, Pascale Hibon, Jose Javier Valenzuela, Pierre Haguenauer

Author Affiliations +

Proceedings Volume 9909, Adaptive Optics Systems V; 99092H (2016) https://doi.org/10.1117/12.2232826
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

GRAAL is the adaptive optics module feeding the wide-field IR imager HAWK-I at the VLT observatory. As part of the adaptive optics facility, GRAAL is equipped with 4 Laser-guide star wave-front sensors and provides a large field-of-view, ground layer correction system to HAWK-I. After a successful testing in Europe, the module has been re-assembled in Chile and installed at the Nasmyth-A platform of Yepun, the fourth Unit telescope of the observatory. We report on the installation of GRAAL on the mountain and on its first testing in stand-alone and on-sky.

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Jérôme Paufique, Pierre-Yves Madec, Johann Kolb, Harald Kuntschner, Javier Argomedo, Mario J. Kiekebusch, Robert H. Donaldson, Robin Arsenault, Ralf Siebenmorgen, Christian Soenke, Sebastien Tordo, Ralf D. Conzelmann, Andreas Jost, Javier Reyes-Moreno, Mark Downing, Pascale Hibon, Jose Javier Valenzuela, and Pierre Haguenauer "GRAAL on the mountaintop", Proc. SPIE 9909, Adaptive Optics Systems V, 99092H (27 July 2016); https://doi.org/10.1117/12.2232826

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