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

被引：18

作者：

Fusco, T. ^{[1
,2
]}

Sauvage, J. -F. ^{[1
,2
]}

Mouillet, D. ^{[3
]}

Costille, A. ^{[2
]}

Petit, C. ^{[1
]}

Beuzit, J-L ^{[3
]}

Dohlen, K. ^{[2
]}

Milli, J. ^{[4
]}

Girard, J. ^{[4
]}

Kasper, M. ^{[4
]}

Vigan, A. ^{[2
]}

Suarez, M. ^{[4
]}

Soenke, C. ^{[4
]}

Downing, M. ^{[3
]}

N'Diaye, M. ^{[5
]}

Baudoz, P. ^{[6
]}

Sevin, A. ^{[6
]}

Baruffolo, A. ^{[7
]}

Schmid, H. -M. ^{[8
]}

Salasnich, B. ^{[6
]}

Hugot, E. ^{[2
]}

Hubind, N. ^{[4
]}

机构：

[1] Off Natl Etud & Rech Aerosp, 29 Ave Div Leclerc, F-92322 Chatillon, France

[2] Aix Marseille Univ, CNRS, LAM UMR 7326, F-13388 Marseille, France

[3] IPAG UMR 5274, BP 53, F-38041 Grenoble, France

[4] ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[5] Space Telescope Sci Inst STScI, 3700 San Martin Dr, Baltimore, MD 21218 USA

[6] LESIA Observ Paris, 5 Pl Jules Janssen, F-92195 Meudon, France

[7] INAF Osservatorio Astron Bologna, Via Ranzani 1, I-40127 Bologna, Italy

[8] ETH, Ramistr 101, CH-8092 Zurich, Switzerland

来源：

ADAPTIVE OPTICS SYSTEMS V | 2016年 / 9909卷

关键词：

Instrumentation: Adaptive Optics; Coronagraph; High Contrast Imaging; WAVE-FRONT SENSOR; CALIBRATION; ABERRATIONS; VALIDATION;

D O I：

10.1117/12.2233319

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research) instrument aims at detecting extremely faint sources (giant extrasolar planets) in the vicinity of bright stars(1). 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.

引用

页数：18

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