The optical design of the G-CLEF Spectrograph: the first light instrument for the GMT

被引：1
|
作者：
Ben-Ami, Sagi [1 ]
Crane, Jeffrey D. [2 ,3 ]
Evans, Ian [1 ]
McMuldroch, Stuart [1 ]
Mueller, Mark [1 ]
Podgorski, William [1 ]
Szentgyorgyi, Andrew [1 ]
机构：
[1] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02140 USA
[2] Univ Calif Santa Cruz, Lick Observ, UCO, Santa Cruz, CA 95064 USA
[3] Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA
来源：
GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY VII | 2018年 / 10702卷
关键词：
GMT; ELT; Echelle; Spectrographs; PRV; Exoplanets;
D O I：
10.1117/12.2313381
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The GMT-Consortium Large Earth Finder (G-CLEF), one of the first light instruments for the Giant Magellan Telescope (GMT), is a fiber-fed, high-resolution echelle spectrograph. G-CLEF is expected to proceed towards fabrication in the coming months. In this paper, we present the current, pre-construction G-CLEF optical design, with an emphasis on the innovative features derived for the spectrograph fiber-feed, the implementation of a volume-phase holographic (VPH)-based cross disperser with enhanced blue throughput and our novel solutions for a multi-colored exposure meter and a flat-fielding system.
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页数：11
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