OPTICAL AND MECHANICAL DESIGN OF THE CHARA ARRAY ADAPTIVE OPTICS
OPTICAL AND MECHANICAL DESIGN OF THE CHARA ARRAY ADAPTIVE OPTICS
复制标题
Chara 阵列自适应光学器件的光学和机械设计
DOI：
10.1142/s2251171713400072
复制
发表时间：
2013
期刊：
影响因子：
64.8
通讯作者：
H. Mcalister
中科院分区：
文献类型：
--
作者：
X. Che;L. Sturmann;J. Monnier;T. Brummelaar;J. Sturmann;S. Ridgway;M. Ireland;N. Turner;H. Mcalister
CHARA阵列是一个光学/近红外干涉仪，由6个直径1米的望远镜组成，最长基线为331米。CHARA阵列具有高角分辨率，为研究附近的恒星系统提供了一种独特而强大的方式。2011年，CHARA阵列由NSF-ATI资助，用于升级所有六台望远镜的自适应光学系统，以提高几个数量级的灵敏度。最初的拨款涵盖了自适应光学系统的第一阶段，其中包括望远镜上的波前传感器和快速倾斜/倾斜校正。我们目前正在为第二阶段寻求资金，这将在望远镜上增加快速变形镜以闭合环路。本文将描述该项目的设计，并模拟显示升级后阵列将获得多大的改进。
The CHARA array is an optical/near infrared interferometer consisting of six 1-meter diameter telescopes with the longest baseline of 331 m. With high angular resolution, the CHARA array provides a unique and powerful way of studying nearby stellar systems. In 2011, the CHARA array was funded by NSF-ATI for an upgrade of adaptive optics systems to all six telescopes to improve the sensitivity by several magnitudes. The initial grant covers Phase I of the adaptive optics system, which includes an on-telescope Wavefront Sensor and fast tip/tilt correction. We are currently seeking funding for Phase II which will add fast deformable mirrors at the telescopes to close the loop. This paper will describe the design of the project, and show simulations of how much improvement the array will gain after the upgrade.