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[en] We present the laboratory demonstration of a very high-dynamic range imaging instrument FIRST (Fibered Imager foR Single Telescope). FIRST combines the techniques for aperture masking and a single-mode fiber interferometer to correct wavefront errors, which leads to a very high-dynamic range up to 106 around very near the central object (~ λ/D) at visible to near-infrared wavelengths. Our laboratory experiments successfully demonstrated that the original image can be reconstructed through a pupil remapping system. A first on-sky test will be performed at the Lick Observatory 3- m Shane telescope for operational tests in the summer of 2010.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Kotani, Takayuki; ISAS/JAXA, Japan
Lacour, Sylvestre; Observatoire de Paris à Meudon, France
Choquet, Elodie; Observatoire de Paris à Meudon, France
Huby, Elsa ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Perrin, Guy S.; Observatoire de Paris à Meudon, France
Fedou, Pierre; Observatoire de Paris à Meudon, France
Marchis, Franck; SETI Institute, United States ; Univ. of Califolnia, Berkeley, United States
Duchene, Gaspard; Univ. of Califolnia, Berkeley, United States ; Lab. d'Astrophysique de l'Observatoire de Grenoble, France
Thiébaut, Éric M.; Ctr. de Recherche Astrophysique de Lyon, CRAL, CNRS, France
Woillez, Julien M.; W. M. Keck Observatory, United States
Berger, Jean-Philippe; Lab. d'Astrophysique de l'Observatoire de Grenoble, France
Bordé, Pascal J.; Institut d'Astrophysique Spatiale, Univ. Paris-Sud 11, France
Chesneau, Olivier; Observatoire de la Côte d'Azur, France
Kervella, Pierre; Observatoire de Paris à Meudon, France
Lai, Olivier; Canada-France-Hawaii Telescope, United States
Ridgway, Stephen T.; Kitt Peak National Observatory, United States
Rouan, Daniel; Observatoire de Paris à Meudon, France
Lecavelier des Etangs, Alain; Institut d'Astrophysique de Paris, CNRS, Univ. Pierre & Marie Curie, France
Vidal-Madjar, Alfred; Institut d'Astrophysique de Paris, CNRS, Univ. Pierre & Marie Curie, France)
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