KalAO，智利拉西拉1.2米欧拉瑞士望远镜上的快速自适应光学成像仪
KalAO the swift adaptive optics imager on 1.2m Euler Swiss telescope in La Silla, Chile
摘要：
KalAO是一个天然导星自适应光学成像仪，将安装在智利拉西拉1.2米欧拉瑞士望远镜的第二个Nasmyth焦点上。该系统的初始设计灵感来自RoboAO，并进行了修改，以便在自然导航星（NGS）模式下运行。KalAO的建立是为了通过主要来自TESS卫星调查的后续候选者来搜索行星宿主恒星的双星。光学设计针对450 - 900 nm波长范围进行了优化，并配备了SDSS \emph{g,r,i,z}滤光片。该系统的设计波前控制到$I$-星等11星，以探测相同的参数空间的径向速度仪器，如HARPS和NIRPS。该系统的主要组成部分是一个11 × 11 10.9厘米的子孔径电子倍增CCD（EMCCD）夏克哈特曼波前传感器，140致动器微机电系统（MEMS）变形镜，快速翻转/倾斜镜，和图形处理单元（GPU）供电乙二醇冷却实时计算机。它的设计运行频率高达1.8kHz，以检测接近150mas可见光衍射极限的同伴。实时自适应光学控制使用在GPU上运行的CACAO软件。如果新冠病毒限制解除，该仪器计划于2021年初在智利投入使用。
英文摘要：
KalAO is a natural guide star adaptive optics (AO) imager to be installed on the second Nasmyth focus of the 1.2m Euler Swiss telescope in La Silla, Chile. The initial design of the system is inspired on RoboAO with modifications in order to operate in natural guide star (NGS) mode. KalAO was built to search for binarity in planet hosting stars by following-up candidates primarily from the TESS satellite survey. The optical design is optimised for the 450-900 nm wavelength range and is fitted with SDSS \emph{g,r,i,z} filters. The system is designed for wavefront control down to $I$-magnitude 11 stars in order to probe the same parameter space as radial velocity instruments such as HARPS and NIRPS. The principal components of the system are an 11x11 10.9 cm sub-apertures Electron Multiplying CCD (EMCCD) Shack-Hartmann wavefront sensor, a 140 actuators Microelectromechanical systems (MEMS) deformable mirror, a fast tip/tilt mirror, and a graphics processing unit (GPU) powered glycol cooled real-time computer. It is designed to run at up to 1.8kHz in order to detect companions as close as the 150mas visible-light diffraction limit. The real-time adaptive optics control is using the CACAO software running on GPUs. The instrument is planned for commissioning early 2021 in Chile if the covid restrictions are lifted.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
