27 July 2016 CIAO: wavefront sensors for GRAVITY
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Abstract
GRAVITY is a second generation near-infrared VLTI instrument that will combine the light of the four unit or four auxiliary telescopes of the ESO Paranal observatory in Chile. The major science goals are the observation of objects in close orbit around, or spiraling into the black hole in the Galactic center with unrivaled sensitivity and angular resolution as well as studies of young stellar objects and evolved stars. In order to cancel out the effect of atmospheric turbulence and to be able to see beyond dusty layers, it needs infrared wave-front sensors when operating with the unit telescopes. Therefore GRAVITY consists of the Beam Combiner Instrument (BCI) located in the VLTI laboratory and a wave-front sensor in each unit telescope Coudé room, thus aptly named Coudé Infrared Adaptive Optics (CIAO). This paper describes the CIAO design, assembly, integration and verification at the Paranal observatory.
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Silvia Scheithauer, Silvia Scheithauer, Wolfgang Brandner, Wolfgang Brandner, Casey Deen, Casey Deen, Tobias Adler, Tobias Adler, Henri Bonnet, Henri Bonnet, Pierre Bourget, Pierre Bourget, Fanny Chemla, Fanny Chemla, Yann Clenet, Yann Clenet, Francoise Delplancke, Francoise Delplancke, Monica Ebert, Monica Ebert, Frank Eisenhauer, Frank Eisenhauer, Michael Esselborn, Michael Esselborn, Gert Finger, Gert Finger, Eric Gendron, Eric Gendron, Adrian Glauser, Adrian Glauser, Frederic Gonte, Frederic Gonte, Thomas Henning, Thomas Henning, Stefan Hippler, Stefan Hippler, Armin Huber, Armin Huber, Zoltan Hubert, Zoltan Hubert, Gerd Jakob, Gerd Jakob, Lieselotte Jochum, Lieselotte Jochum, Laurent Jocou, Laurent Jocou, Sarah Kendrew, Sarah Kendrew, Ralf Klein, Ralf Klein, Johann Kolb, Johann Kolb, Martin Kulas, Martin Kulas, Werner Laun, Werner Laun, Rainer Lenzen, Rainer Lenzen, Marcus Mellein, Marcus Mellein, Eric Müller, Eric Müller, Javier Moreno-Ventas, Javier Moreno-Ventas, Udo Neumann, Udo Neumann, Sylvain Oberti, Sylvain Oberti, Jürgen Ott, Jürgen Ott, Laurent Pallanca, Laurent Pallanca, Johana Panduro, Johana Panduro, Jose Ramos, Jose Ramos, Miguel Riquelme, Miguel Riquelme, Ralf-Rainer Rohloff, Ralf-Rainer Rohloff, Gérard Rousset, Gérard Rousset, Nicolas Schuhler, Nicolas Schuhler, Marcos Suarez, Marcos Suarez, Gerard Zins, Gerard Zins, } "CIAO: wavefront sensors for GRAVITY", Proc. SPIE 9909, Adaptive Optics Systems V, 99092L (27 July 2016); doi: 10.1117/12.2232997; https://doi.org/10.1117/12.2232997
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