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:
arXiv: Instrumentation and Methods for Astrophysics
影响因子:
--
通讯作者:
G. Sivo
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

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对于像斯巴鲁望远镜这样带有中央遮挡和厚蜘蛛叶片的望远镜来说,高对比度日冕成像是一项具有挑战性的任务。我们的团队目前正在组装一种极端自适应光学(AO)工作台,该工作台是为新投入使用的冠脉成像仪HiCIAO的升级而设计的,该仪器可以解决这些困难。所谓的SCExao系统将高性能的相位诱导幅度变迹(PIAA)日冕仪与基于MEMS的波前控制系统相结合,该系统将用于斯巴鲁AO188系统的补充。我们提出并展示了抑制蜘蛛叶片的两个关键光学组件的良好性能,即中央遮挡和变迹光束用于高对比度冠脉成像,同时保持吞吐量和角度分辨率。
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.
冠状低阶波前传感器:相位感应振幅冠状仪的原理和应用
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
HiCIAO:斯巴鲁望远镜的新型高对比度日冕成像仪,用于自适应光学
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