LINC-NIRVANA: MCAO toward Extremely Large
Telescopes
W. Gaessler, C. Arcidiacono, S. Egner,
T.M. Herbst, D. Andersen, H. Baumeister, P. Bizenberger, H. Boehnhardt,
F. Briegel, M. Kuerster, W. Laun, L. Mohr, B. Grimm, H.-W. Rix, R.-R.
Rohloff, R. Soci, C. Storz, W. Xu, R. Ragazzoni, P. Salinari, E.
Diolaiti, J. Farinato, M. Carbillet, L. Schreiber, A. Eckart, T.
Bertram, C. Straubmeier, Y. Wang, L. Zealouk, G. Weigelt, U. Beckmann,
J. Behrend, T. Driebe, M. Heininger, K.-H. Hofmann, E. Nußbaum, D.
Schertl and E. Masciadri
Comptes Rendus Physique 6, 1129-1138 (2005)
Abstract
LINC-NIRVANA is a Fizeau (imaging) interferometer exploiting the full
spatial resolution of a 23 m class telescope in the combined beam of
the Large Binocular Telescope supported through Multi-Conjugated
Adaptive Optics (MCAO). By means of science cases, we show how
LINC-NIRVANA takes advantage of the MCAO, increasing the sky coverage
of the instrument and the field of view for the Fringe and Flexure
tracker. We introduce the MCAO system of LINC-NIRVANA in detail, which
in a first step will be installed with two deformable mirrors per arm
and has the provision to be upgraded with a third mirror. The MCAO
system implements several novel concepts proposed for extremely large
telescopes, such as layer oriented MCAO, optical co-adding of guide
stars, or Multiple Field of View sensing. LINC-NIRVANA will demonstrate
some of the concepts for the first time on sky
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