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Proceedings Paper

SAXO, the SPHERE extreme AO system: on-sky final performance and future improvements
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Paper Abstract

The SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research) instrument aims at detecting extremely faint sources (giant extrasolar planets) in the vicinity of bright stars1. Such a challenging goal requires the use of a very-high-order performance Adaptive Optics [AO] system feeding the scientific instruments with a quasi-perfect flat wave front corrected from all the atmospheric turbulence and internal defects. This AO system, called SAXO (Sphere Ao for eXoplanet Observation) is the heart of the instrument, a heart beating 1200 time per second and providing unprecedented image quality for a large ground based telescope at optical/near infrared wavelength. We will present the latest results obtained on-sky, demonstrating its exceptional performance (in terms of correction quality, stability and robustness) and tremendous potentiality for high contrast imaging and more specifically for exoplanet discovery.

Paper Details

Date Published: 26 July 2016
PDF: 18 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99090U (26 July 2016); doi: 10.1117/12.2233319
Show Author Affiliations
T. Fusco, ONERA (France)
Aix Marseille Univ., CNRS, LAM (France)
J.-F. Sauvage, ONERA (France)
Aix Marseille Univ., CNRS, LAM (France)
D. Mouillet, IPAG (France)
A. Costille, Aix Marseille Univ., CNRS, LAM (France)
C. Petit, ONERA (France)
J.-L. Beuzit, IPAG (France)
K. Dohlen, Aix Marseille Univ., CNRS, LAM (France)
J. Milli, European Southern Observatory (Germany)
J. Girard, European Southern Observatory (Germany)
M. Kasper, European Southern Observatory (Germany)
A. Vigan, Aix Marseille Univ., CNRS, LAM (France)
M. Suarez, European Southern Observatory (Germany)
C. Soenke, European Southern Observatory (Germany)
M. Downing, IPAG (France)
M. N'Diaye, Space Telescope Science Institute (United States)
P. Baudoz, LESIA Observatoire de Paris (France)
A. Sevin, LESIA Observatoire de Paris (France)
A. Baruffolo, INAF - Osservatorio Astronomico di Bologna (Italy)
H.-M. Schmid, ETH Zürich (Switzerland)
B. Salasnich, LESIA Observatoire de Paris (Italy)
E. Hugot, Aix Marseille Univ., CNRS, LAM (France)
N. Hubin, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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