Implementation of solar multi-conjugate adaptive optics system

自适应光学（AO）是一种实时校正地面大气湍流退化图像的技术。在本研究中，我们设计了一个太阳自适应光学系统，该系统在飞驒天文台60cm无穹顶太阳望远镜上有多种用途。为了扩大视场，我们开发了一种多共轭光学补偿系统，在该系统中光学补偿是有效的。为了设计MCAO系统，湍流层高度的信息是必要的。我们改进了一种用于双星夜间观测的SCIDAR技术，将其应用于太阳观测，然后将其应用于太阳观测。利用改进后的技术，我们测量了飞驒天文台上空湍流层的高度。我们还开发了一个上层波前传感器，然后将MCAO系统应用于太阳观测。

Adaptive optics (AO) is a technique of correcting images degraded with terrestrial atmospheric turbulence in real time. In this study, we designed a solar adaptive optics system that is useful to several purposes at the 60cm domeless solar telescope of the Hida observatory. We developed a multi-conjugate AO (MCAO) system for widening the field-of-view within which compensation by AO is effective. To design the MCAO system, information on heights of turbulent layers is necessary. We modified a SCIDAR technique, which was developed for night-time observations using a binary star, so as to apply it to solar observations, and then applied it to solar observations. Using the modified technique, we measured the heights of turbulent layers over the Hida observatory. We also developed an upper-layer wavefront sensor and then applied a MCAO system to solar observations.