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

T. Fusco; J.-F. Sauvage; D. Mouillet; A. Costille; C. Petit; J.-L. Beuzit; K. Dohlen; J. Milli; J. Girard; M. Kasper; A. Vigan; M. Suarez; C. Soenke; M. Downing; M. N'Diaye; P. Baudoz; A. Sevin; A. Baruffolo; H.-M. Schmid; B. Salasnich; E. Hugot; N. Hubin

doi:10.1117/12.2233319

26 July 2016 SAXO, the SPHERE extreme AO system: on-sky final performance and future improvements

T. Fusco, J.-F. Sauvage, D. Mouillet, A. Costille, C. Petit, J.-L. Beuzit, K. Dohlen, J. Milli, J. Girard, M. Kasper, A. Vigan, M. Suarez, C. Soenke, M. Downing, M. N'Diaye, P. Baudoz, A. Sevin, A. Baruffolo, H.-M. Schmid, B. Salasnich, E. Hugot, N. Hubin

Author Affiliations +

Proceedings Volume 9909, Adaptive Optics Systems V; 99090U (2016) https://doi.org/10.1117/12.2233319
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

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.

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T. Fusco, J.-F. Sauvage, D. Mouillet, A. Costille, C. Petit, J.-L. Beuzit, K. Dohlen, J. Milli, J. Girard, M. Kasper, A. Vigan, M. Suarez, C. Soenke, M. Downing, M. N'Diaye, P. Baudoz, A. Sevin, A. Baruffolo, H.-M. Schmid, B. Salasnich, E. Hugot, and N. Hubin "SAXO, the SPHERE extreme AO system: on-sky final performance and future improvements", Proc. SPIE 9909, Adaptive Optics Systems V, 99090U (26 July 2016); https://doi.org/10.1117/12.2233319

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