The Subaru Coronagraphic Extreme AO project
The Subaru Coronagraphic Extreme AO project
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斯巴鲁 Coronagraphic Extreme AO 项目
DOI:
10.1063/1.3215880
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
G. Sivo
中科院分区:
文献类型:
--
作者:
F. Martinache;O. Guyon;J. Lozi;V. Garrel;C. Blain;G. Sivo
High contrast coronagraphic imaging is a challenging task for telescopes with central obscurations and thick spider vanes such as the Subaru Telescope. Our group is currently assembling an extreme adaptive optics (AO) bench designed as an upgrade for the newly commissionned coronagraphic imager instrument HiCIAO, that addresses these difficulties. The so‐called SCExAO system combines a high‐performance Phase Induced Amplitude Apodization (PIAA) coronagraph to a MEMS‐based wavefront control system that will be used in complement of the Subaru AO188 system. We present and demonstrate the good performance of two key optical components that suppress the spider vanes, the central obscuration and apodize the beam for high‐contrast coronagraphy, while preserving the throughput and the angular resolution.
DOI:
--
发表时间:
2009
期刊:
Astrophysical Journal 693
影响因子:
--
作者:
Guyon Olivier;他
通讯作者:
他
DOI:
--
发表时间:
2008
期刊:
Proceedings of SPIE 7014
影响因子:
--
作者:
B.Sun;T.Ohtsubo;T.Suzuki;T.Yamaguchi;他;天形健;Hodapp Klaus
通讯作者:
Hodapp Klaus