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

页码：94 / 100

页数：7