标题： Subaru 克拉农极端自适应光学项目 显示英文标题

标题： The Subaru Coronagraphic Extreme AO project

摘要： 高对比度日冕观测成像是对带有中心遮挡和粗支撑架的望远镜具有挑战性的任务，例如昴星团望远镜（Subaru Telescope）。 我们团队目前正在组装一个极端自适应光学系统（extreme AO bench），该系统旨在作为新安装的日冕成像仪HiCIAO的升级方案，以解决这些问题。 所谓的SCExAO系统结合了高性能的PIAA日冕仪与基于MEMS的波前控制系统，该系统将与昴星团望远镜的AO188系统配合使用。 我们展示了两个关键光学组件的优良性能，这些组件能够抑制支撑架、中心遮挡，并对光束进行渐晕处理以实现高对比度日冕观测，同时保持通量和角分辨率。 显示英文摘要

摘要： 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 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 PIAA coronagraph to a MEMS-based wavefront control system that will be used in complement of the Subaru AO188 system. We present and demonstrate 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.