First light of the 6.5-m MMT adaptive optics system
First light of the 6.5-m MMT adaptive optics system
复制标题
6.5 米 MMT 自适应光学系统的第一束光
DOI：
--
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
A. Riccardi
中科院分区：
文献类型：
--
作者：
F. Wildi;G. Brusa;M. Lloyd;L. Close;A. Riccardi
在2002年11月，6.5米MMT的自适应光学系统及其可变形的辅助系统首次出现在天空中。从那时起，它已经在望远镜上记录了30多个夜晚，并与几台科学摄像机和一台专用红外摄像机一起使用。到目前为止，结果非常令人鼓舞，h波段Strehls高达20%，M波段高达98%，部分受到正在改进的控制算法的限制。可变形副镜（DM）的可靠性非常出色，仅发生过一次需要从轮毂上拆卸副镜的故障。在本文中，我们回顾了在第一年的运行中所取得的里程碑和取得的成绩。我们还将讨论与可变形二次元相关的操作限制以及为放松这些限制所采取的步骤。我们表明，尽管其明显的复杂性，一个自适应的二次AO系统可以从望远镜和AO工作人员适度的努力操作。
The adaptive optics system of the 6.5m MMT with its deformable secondary has seen first light on the sky in November 2002. Since then, it has logged over 30 nights at the telescope and has been used with several scientific cameras and a dedicated IR infrared camera. Results so far are extremely encouraging with Strehls of up to 20% in H-band and 98% in M limited in part by the control algorithm that is being improved. Reliability of the deformable secondary mirror (DM) has been remarkable with only one occurrence of a malfunction that required removing the secondary from its hub. In this paper, we review the milestones achieved and the performances obtained in the first year of operation. We will also address the operational constraints associated with the deformable secondary and the steps taken to relax these constraints. We show that despite its apparent complexity, an adaptive secondary AO system can be operated with modest effort from the telescope and AO staff.