arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1807.09378astro-ph.IM
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暗能量光谱仪调试仪

The Commissioning Instrument for the Dark Energy Spectroscopic Instrument

Ashley J. Ross, Paul Martini, Rebecca Coles, Mark Derwent, Klaus Honscheid, Thomas P. O'Brien, Dan Pappalardo, Suk Sien Tie, David Brooks, Michael Schubnell, Greg Tarle

摘要:

介绍了暗能量光谱仪调试装置的设计。DESI将使用位于亚利桑那州基特峰的4米Mayall望远镜获得3度视场的光谱。为了在这一视场内获得所需的图像质量,正在梅亚尔望远镜上安装一个新的光学校正器。调试仪器设计用于表征新光学系统的图像质量。调试仪器有五个商用摄像机;一个在焦面中心,四个在视场周边附近和基本方向。还有22个照明基准点,分布在整个焦面,将用于测试系统,将DESI光纤定位器和天体坐标之间的映射。我们描述了调试仪器将如何执行DESI项目的调试任务,从而消除风险。

英文摘要:

We describe the design of the Commissioning Instrument for the Dark Energy Spectroscopic Instrument (DESI). DESI will obtain spectra over a 3 degree field of view using the 4-meter Mayall Telescope at Kitt Peak, AZ. In order to achieve the required image quality over this field of view, a new optical corrector is being installed at the Mayall Telescope. The Commissioning Instrument is designed to characterize the image quality of the new optical system. The Commissioning Instrument has five commercial cameras; one at the center of the focal surface and four near the periphery of the field and at the cardinal directions. There are also 22 illuminated fiducials, distributed throughout the focal surface, that will be used to test the system that will map between the DESI fiber positioners and celestial coordinates. We describe how the commissioning instrument will perform commissioning tasks for the DESI project and thereby eliminate risks.

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。

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