ELT-HIRES the high resolution spectrograph for the ELT: phase-A design of its polarimetric unit
ELT-HIRES the high resolution spectrograph for the ELT: phase-A design of its polarimetric unit
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ELT 为 ELT 租用了高分辨率光谱仪：其偏振单元的 A 阶段设计
DOI：
10.1117/12.2312115
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
A. Marconi
中科院分区：
文献类型：
--
作者：
I. di Varano;M. Woche;K. Strassmeier;I. Ilyin;M. Weber;S. Yuan;S. Covino;P. Di Marcantonio;M. Landoni;M. Genoni;M. Riva;A. Marconi
超大望远镜（ELT-HIRES）高分辨率光谱仪的A阶段研究已于2017年底结束。我们提出了一个偏振光饲料从中间焦点（IF）和望远镜的Nasmyth焦点的主要结果。我们的结论是，使用的IF是强制性的高精度分光偏振。在产品树的描述中，我们提出了阶段A级的子单元的光机设计，描述了观测和校准模式，PSF误差预算，以及初步的有限元结构和地震分析。本文报道了一种光线追迹偏振模拟器的最新发展情况，该模拟器用于估计包括望远镜反射镜和偏振计光学元件在内的仪器偏振。还概述了考虑到阶段B的权衡策略和持续解决方案。
The Phase A study for the high-resolution spectrograph for the Extremely Large Telescope (ELT-HIRES) has been concluded in late 2017. We present the main outcome for a polarimetric light feed from the intermediate focus (IF) and a Nasmyth focus of the telescope. We conclude that the use of the IF is mandatory for high-precision spectropolarimetry. Among the description of the product tree, we present phase-A level opto-mechanical designs of the subunits, describe the observational and calibration modes, the PSF error budget, and the preliminary FEM structural and earthquake analysis. An update on the development of a ray tracing polarimetric simulator to estimate the instrumental polarization including both the telescope mirrors and the optical elements of the polarimeter is reported. Trade-off strategies and ongoing solutions in view of the Phase B are outlined too.
ELT-HIRES，ELT 的高分辨率光谱仪：A 阶段研究的结果
DOI：
10.1117/12.2311664
发表时间：
2018
期刊：
--
影响因子：
--
作者：
Marquart T
通讯作者：
Marquart T