MagAO: Status and on-sky performance of the Magellan adaptive optics system
MagAO: Status and on-sky performance of the Magellan adaptive optics system
复制标题
MagAO：麦哲伦自适应光学系统的现状和在空性能
DOI：
10.1117/12.2057048
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发表时间：
2014
期刊：
影响因子：
5.1
通讯作者：
A. Weinberger
中科院分区：
文献类型：
--
作者：
K. Morzinski;L. Close;J. Males;D. Kopon;P. Hinz;S. Esposito;A. Riccardi;A. Puglisi;E. Pinna;R. Briguglio;M. Xompero;F. Quirós;V. Bailey;K. Follette;T. Rodigas;Ya;C. Arcidiacono;J. Argomedo;L. Busoni;T. Hare;A. Uomoto;A. Weinberger
MagAO是一种新的自适应光学系统，配备可见光和红外科学摄像机，位于智利拉斯坎帕纳斯天文台的6.5米麦哲伦“克莱”望远镜上。该仪器锁定在第0到16 r波段的自然导星（NGS）上，使用可从28×28到7×7子孔径的调制金字塔波前传感器测量湍流，并使用585致动器自适应次反射镜（ASM）为两个科学相机提供波前。MagAO是亚利桑那州格雷厄姆山大型双筒望远镜（LBT）上类似的AO系统的突变克隆。高级AO环路控制多达378模式，帧率高达1000hz。该仪器有两个科学摄像机：VisAO工作范围为0.5-1μm， Clio2工作范围为1-5 μm。MagAO于2012年安装，并在2012-2013年成功完成了两次调试。2014年4月，我们进行了第一次对麦哲伦社区开放的科学运行。来自亚利桑那州、卡内基、澳大利亚、哈佛大学、麻省理工学院、密歇根州和智利的观测者与MagAO仪器小组合作进行了观测。在这里，我们描述了MagAO仪器，描述了我们在天空中的表现，并报告了我们在2014年夏天的状态。
MagAO is the new adaptive optics system with visible-light and infrared science cameras, located on the 6.5-m Magellan “Clay” telescope at Las Campanas Observatory, Chile. The instrument locks on natural guide stars (NGS) from 0th to 16th R-band magnitude, measures turbulence with a modulating pyramid wavefront sensor binnable from 28×28 to 7×7 subapertures, and uses a 585-actuator adaptive secondary mirror (ASM) to provide at wavefronts to the two science cameras. MagAO is a mutated clone of the similar AO systems at the Large Binocular Telescope (LBT) at Mt. Graham, Arizona. The high-level AO loop controls up to 378 modes and operates at frame rates up to 1000 Hz. The instrument has two science cameras: VisAO operating from 0.5-1μm and Clio2 operating from 1-5 μm. MagAO was installed in 2012 and successfully completed two commissioning runs in 2012-2013. In April 2014 we had our first science run that was open to the general Magellan community. Observers from Arizona, Carnegie, Australia, Harvard, MIT, Michigan, and Chile took observations in collaboration with the MagAO instrument team. Here we describe the MagAO instrument, describe our on-sky performance, and report our status as of summer 2014.