A high-resolution optical spectrograph for the Thirty Meter Telescope: design and performance

被引：3

作者：

Osterman, Steve ^{[1
]}

Froning, Cynthia ^{[1
]}

Beasley, Matthew ^{[1
]}

Green, James ^{[1
]}

Beland, Stephane ^{[1
]}

机构：

[1] Univ Colorado, Ctr Astrophys & Space Astron, Campus Box 389, Boulder, CO 80309 USA

来源：

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY, PTS 1- 3 | 2006年 / 6269卷

基金：

加拿大创新基金会;

关键词：

optical; spectroscopy; high resolution; dichroic; Thirty Meter Telescope; HROS; CU-HROS;

D O I：

10.1117/12.672333

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have completed a conceptual design study of the High Resolution Optical Spectrograph for the Thirty Meter Telescope project. We propose the use of a fiber fed integral field unit and a dichroic tree to achieve R=100,000 spectroscopy from 310 to 1100 nm independent of AO performance. The system relies on the dichroic tree to provide coarse wavelength selection, and 32 first order spectrograph benches. This approach allows for simultaneous optimization of grating and detector performance for all wavelengths, resulting in high efficiency, near uniform dispersion, and reduced program risk and cost due to the high degree of component commonality. We present projected performance and design details.

引用

页数：12

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