System tests and on-sky commissioning of the GRAVITY-CIAO wavefront sensors

  title={System tests and on-sky commissioning of the GRAVITY-CIAO wavefront sensors},
  author={Casey Patrick Deen and Johann Kolb and Sylvain Oberti and Henri Bonnet and Eric Mueller and Zolt{\'a}n Hubert and G{\'e}rard Zins and Françoise Delplancke and Pierre Haguenauer and Lorenzo Pettazzi and Pierre Bourget and M. Su{\'a}rez-Valles and Silvia Scheithauer and Armin Huber and Michael Esselborn and Yann Cl{\'e}net and {\'E}ric Gendron and Wolfgang Brandner and Ran Klein and Rainer Lenzen and Udo Dipl Ing Neumann and Martin Kulas and Johana Panduro and Jos{\'e} Ramos and R.-R. Rohloff and Thomas Henning and Karine Perraut and Guy S. Perrin and Christian Straubmeier and Ant{\'o}nio Amorim and Frank Eisenhauer},
  booktitle={Astronomical Telescopes + Instrumentation},
GRAVITY is a near-infrared interferometric instrument that allows astronomers to combine the light of the four unit or four auxiliary telescopes of the ESO Very Large Telescope in Paranal, Chile. GRAVITY will deliver extremely precise relative astrometry and spatially resolved spectra. In order to study objects in regions of high extinction (e.g. the Galactic Center, or star forming regions), GRAVITY will use infrared wavefront sensors. The suite of four wavefront sensors located in the Coude… CONTINUE READING