ULTIMATE-Subaru: GLAO preliminary design overview

ULTIMATE-Subaru: GLAO preliminary design overview
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ULTIMATE-Subaru:GLAO 初步设计概述

DOI:
10.1117/12.2629749
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发表时间:
2022
期刊:
Proceedings of the SPIE
影响因子:
--
通讯作者:
他20名
他20名
中科院分区:
--
文献类型:
--
作者:
Minowa Yosuke;Ono Yoshito;Tanaka Yoko;Yoshida Hiroshige;Terao Koki;Koyama Yusei;Ali Sadman;Tanaka Ichi;Hattori Takashi;Okita Hirofumi;他20名

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ULTIMATE-斯巴鲁是斯巴鲁望远镜的下一个设施仪器计划。该项目的目标是通过开发宽视场地面层自适应光学(GLAO)系统和宽视场近红外(NIR)仪器,将斯巴鲁的宽视场能力扩展到近红外(NIR)。GLAO系统将通过校正地面层湍流均匀地提高图像质量,直到直径为20弧分的视场。在中等视宁度条件下,GLAO校正后的预期图像质量在K波段为FWHM~ 0.2。在本报告中,我们提出了初步设计概述的GLAO系统在卡塞格伦焦点,其中包括一个自适应次镜,NGS和LGS波前传感器系统,激光引导星星设施,和控制系统。我们还提出了原型活动,以验证选定的设计的GLAO系统。
ULTIMATE-Subaru is a next facility instrumentation program of the Subaru Telescope. The goal of this project is to extend the wide-field capability of the Subaru to near-infrared (NIR), by developing a wide-field ground-layer adaptive optics (GLAO) system and wide-field NIR instruments. The GLAO system will uniformly improve the image quality up to 20-arcmin field of view in diameter by correcting for the ground-layer turbulence. The expected image quality after the GLAO correction is FWHM~0".2 in K-band under moderate seeing conditions. In this presentation, we present preliminary design overview of the GLAO system at the Cassegrain focus, which consist of an Adaptive Secondary Mirror, NGS and LGS wavefront sensor system, a laser guide star facility, and control system. We also present the prototyping activities to validate the selected design of the GLAO system.
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