MOAO first on-sky demonstration with CANARY
MOAO first on-sky demonstration with CANARY
复制标题
MOAO 首次与 CANARY 进行空中演示
DOI:
10.1051/0004-6361/201116658
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发表时间:
2011
影响因子:
6.5
通讯作者:
Gendron E
中科院分区:
文献类型:
--
作者:
Gendron E
ContextA new challenging adaptive optics (AO) system, called multi-object adaptive optics (MOAO), has been successfully demonstrated on-sky for the first time at the 4.2 mWilliam HerschelTelescope, Canary Islands, Spain, at the end of September 2010.AimsThis system, called CANARY, is aimed at demonstrating the feasibility of MOAO in preparation of a future multi-object near infra-red (IR) integral field unit spectrograph to equip extremely large telescopes for analysing the morphology and dynamics of high-zgalaxies.MethodsCANARY compensates for the atmospheric turbulence with a deformable mirror driven in open-loop and controlled through a tomographic reconstruction by three widely separated off-axis natural guide star (NGS) wavefront sensors, which are in open loop too. We compared the performance of conventional closed-loop AO, MOAO, and ground-layer adaptive optics (GLAO) by analysing both IR images and simultaneous wave-front measurements.ResultsInH-band, Strehl ratios of 0.20 are measured with MOAO while achieving 0.25 with closed-loop AO in fairly similar seeing conditions (r0≈ 15 cm at 0.5μm). As expected, MOAO has performed at an intermediate level between GLAO and closed-loop AO.
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影响因子:
1.9
作者:
Basden A
通讯作者:
Basden A
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
S. Ammons;L. Johnson;E. Laag;R. Kupke;D. Gavel;Brian Jeffrey Bauman;C. Max
通讯作者:
C. Max
DOI:
10.1364/josaa.27.00a253
发表时间:
2010
期刊:
Journal of the Optical Society of America. A, Optics, image science, and vision
影响因子:
--
作者:
F. Vidal;E. Gendron;G. Rousset
通讯作者:
G. Rousset
影响因子:
1.9
作者:
T. Fusco;J. Conan;Gérard Rousset;L. Mugnier;V. Michau
通讯作者:
V. Michau