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Pupil stabilization for SPHERE's extreme AO and high performance coronagraph system
G. Montagnier, T. Fusco, J. -L. Beuzit +3
We propose a new concept of pupil motion sensor for astronomical adaptive optics systems and present experimental results obtained during the first laboratory validation of this co…
Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres
Benoit Carry, Christophe Dumas, Marcello Fulchignoni +5
We study the physical characteristics (shape, dimensions, spin axis direction, albedo maps, mineralogy) of the dwarf-planet Ceres based on high-angular resolution near-infrared obs…
Calibration and Pre-Compensation of Non-Common Path Aberrations for extreme Adaptive Optics
J. -F. Sauvage, T. Fusco, G. Rousset +1
Non-Common Path Aberrations (NCPA) are one of the main limitations for extreme Adaptive Optics (AO) system. NCPA prevent extreme AO systems to achieve their ultimate performance. T…