caa a22 4500 445830166 CHVBK 20180317145312.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10686-011-9213-x doi (NATIONALLICENCE)springer-10.1007/s10686-011-9213-x Fresnel imager testbeds: setting up, evolution, and first images [Elektronische Daten] [Jean-Pierre Rivet, Laurent Koechlin, Truswin Raksasataya, Paul Deba, René Gili] The Fresnel Diffractive Array Imager (FDAI) is a new optical concept proposed for large telescopes in space. To evaluate its performance on real sky objects, we have built a new testbed of FDAI, especially designed for on-sky operation. It is an evolution of the laboratory setup previously used to validate the concept on artificial sources. In order to observe celestial objects, this new two-module testbed was installed in July2009 at Observatoire de la Côte d'Azur (Nice, France). The two modules of the testbed (the Fresnel array module and the receiver module), were secured at both ends of the 19m long tube of an historical refractor, used as an optical bench on an equatorial mount. In this article, we focus on the evolution steps from a laboratory experiment to the first observation prototype, and on the targets chosen for performance assessment. We show the first on-sky results of a FDAI, although they do not reflect the nominal performances of the final testbed. These nominal performances have been attained only with the latest and most sophisticated prototype, and are presented in a separate article in this special issue. Springer Science+Business Media B.V., 2011 Diffractive focussing nationallicence Formation flying nationallicence High angular resolution nationallicence High dynamic range nationallicence UV domain nationallicence Exoplanets nationallicence Rivet Jean-Pierre Département Cassiopée, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la cote d'Azur, B.P. 4229, 06304, NICE Cedex 4, France aut Koechlin Laurent Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin, 31400, Toulouse, France aut Raksasataya Truswin Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin, 31400, Toulouse, France aut Deba Paul Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin, 31400, Toulouse, France aut Gili René Département Cassiopée, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la cote d'Azur, B.P. 4229, 06304, NICE Cedex 4, France aut Experimental Astronomy Springer Netherlands 30/2-3(2011-06-01), 149-164 0922-6435 30:2-3<149 2011 30 10686 https://doi.org/10.1007/s10686-011-9213-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10686-011-9213-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rivet Jean-Pierre Département Cassiopée, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la cote d'Azur, B.P. 4229, 06304, NICE Cedex 4, France aut NATIONALLICENCE 700 1- Koechlin Laurent Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin, 31400, Toulouse, France aut NATIONALLICENCE 700 1- Raksasataya Truswin Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin, 31400, Toulouse, France aut NATIONALLICENCE 700 1- Deba Paul Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 avenue Edouard Belin, 31400, Toulouse, France aut NATIONALLICENCE 700 1- Gili René Département Cassiopée, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la cote d'Azur, B.P. 4229, 06304, NICE Cedex 4, France aut NATIONALLICENCE 773 0- Experimental Astronomy Springer Netherlands 30/2-3(2011-06-01), 149-164 0922-6435 30:2-3<149 2011 30 10686 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer