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ELT-HIRES the high resolution spectrograph for the ELT: phase-A design of its polarimetric unit
Di Varano, I.1; Woche, M.1; Strassmeier, K. G.1; Ilyin, I.1; Weber, M.1; Yuan S(袁沭)2; Covino, S.3; Di Marcantonio, P.4; Landoni, M.3; Genoni, M.3; Riva, M.3; Marconi, A.5
会议录名称Proceedings of SPIE - ADVANCES IN OPTICAL AND MECHANICAL TECHNOLOGIES FOR TELESCOPES AND INSTRUMENTATION III
2018
卷号10706
DOI10.1117/12.2312115
会议录编者/会议主办者Navarro, R; Geyl, R
产权排序第2完成单位
收录类别CPCI
会议名称Conference on Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
会议日期2018-06-10
会议地点Austin, TX
会议赞助商SPIE; 4D Technol; Andor Technol, Ltd; Astron Consultants & Equipment, Inc; Giant Magellan Telescope; GPixel, Inc; Harris Corp; Materion Corp; Optimax Syst, Inc; Princeton Infrared Technologies; Symetrie; Teledyne Technologies, Inc; Thirty Meter Telescope
关键词Elt Instruments Spectropolarimetry Polarizing Beamsplitters Circular Polarizers Instrument Modeling Mueller Matrices
摘要

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.

语种英语
学科领域天文学
学科门类理学 ; 理学::天文学
文章类型Proceedings Paper
出版者SPIE-INT SOC OPTICAL ENGINEERING
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号978-1-5106-1966-1
ISSN号0277-786X
URL查看原文
WOS记录号WOS:000449771900049
WOS研究方向Astronomy & Astrophysics ; Instruments & Instrumentation ; Optics
WOS类目Astronomy & Astrophysics ; Instruments & Instrumentation ; Optics
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/18286
专题抚仙湖太阳观测站
通讯作者Di Varano, I.
作者单位1.Leibniz Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, Germany
2.Yunnan Observatories, Chinese Academy of Sciences, Laboratory of Astronomical Technologies, P.0.Box110, Kunming 650011, Yunnan, China
3.INAF- Osservatorio Astronomico di Brera, Via Bianchi 46, I-23807 Merate, Italy
4.INAF- Osservatorio Astronomico di Trieste, Via G.B.Tiepolo 11, 34143 Trieste, Italy
5.Dipartimento di Fisica e Astronomia, Università di Firenze, via G. Sansone 1, I-50019, Sesto Fiorentino (Firenze), Italy
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Di Varano, I.,Woche, M.,Strassmeier, K. G.,et al. ELT-HIRES the high resolution spectrograph for the ELT: phase-A design of its polarimetric unit[C]//Navarro, R; Geyl, R. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2018.
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