GRIS - THE GRATING INFRARED SPECTROMETER

被引：10
|
作者：
THOMPSON, RI
EPPS, HW
WINTERS, G
WOMACK, W
MENTZELL, E
机构：
[1] UNIV CALIF SANTA CRUZ,LICK OBSERV,SANTA CRUZ,CA 95064
[2] UNIV ARIZONA,CTR OPT SCI,TUCSON,AZ 85721
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1994年 / 106卷 / 695期
关键词：
D O I：
10.1086/133348
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The grating infrared spectrometer (GRIS) is an echelle grating, prism cross-dispersed, spectrometer designed for the 2.3-m Steward Observatory telescope. The cross-dispersed format utilizes a NICMOS 3 HgCdTe detector array for observations in the 0.86-2.5 mu m spectral region. An echelle grating, ruled on both sides, provides resolutions of 3449 and 9439 per slit width, respectively. Rotation of the grating achieves several functions: 1/2 pixel spectrum stepping for full Nyquist sampling, a change in the wavelength regions falling on the detector, and the means for changing grating sides.
引用
收藏
页码：94 / 100
页数：7
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