Space Domain Awareness (SDA) is crucial for defense and civilian use. Ground based high resolution imaging with large telescopes and adaptive optics can deliver detailed image sequences of resident space objects (RSO), complemented by additional signatures for characterization. ONERA, together with CNRS/OSU Pythéas, is...
T. Fusco, C. Petit, N. Védrenne et al.· Astronomical Telescopes + In...· 0 citations
Compensation of the atmospheric turbulence thanks to adaptive optics (AO) has now become commonly used for VLT or ELT class telescopes in order to retrieve a resolution close to their diffraction limit. Following the increasing trend of AO system, there is also a stronger necessity for simulations in order to understan...
R. Fétick, V. Chambouleyron, L. Mazzolo et al.· 1 citation
Future high-contrast instruments aim to directly image and characterise Earth-like exoplanets. Achieving the required contrast requires exquisite image quality, and in particular a high-performance correction of the optical aberrations. Hence, future instruments will use adaptive optics (AO) systems operating at increa...
M. Motte, V. Chambouleyron, R. Fétick et al.· Astronomy & Astrophysics· 0 citations
We developed a near-IR, échelle-like, fiber-fed spectrograph demonstrator using a VIPA instead of an échelle grating, achieving a high spectral resolution (R=80,000) over a 220 nm range with 38% efficiency (from fiber exit to H2RG detector). Designed to characterize exoplanets at high spectral resolution with an XAO in...
A. Carlotti, S. Martos, D. Mouillet et al.· Astronomical Telescopes + In...· 0 citations
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