Upgrade of the Steward Observatory Cryogenic Spectrometer

低温光谱仪的研制于1989年由美国国家科学基金资助。当时的文书包括提高能力的规定，这些规定现在将付诸实施。这些功能包括提高分辨率，从大约700，或3700取决于光栅，到大约19000。现有的尖端/倾斜反射镜系统也将适应仪器，通过稳定仪器狭缝上的恒星图像来提高有效灵敏度。通过一种新型的浸入式硅梯级光栅来实现分辨率的提升。与其他天文台的设施仪器相比，该仪器的新颖设计以相对较低的成本提供了新的功能。该光谱仪将与斯图尔特天文台的望远镜以及升级后的6.5米多镜望远镜一起使用。＊＊＊

9315872 Rieke Development of the cryogenic spectrometer was funded by the National Science Foundation in 1989. At that time the instrument included provision for upgraded capabilities which are now to be implemented. These capabilities include increased resolution from approximately 700, or 3,700 depending upon the grating, to approximately 19,000. An existing tip/tilt mirror system will also be adapted to the instrument to improve the effective sensitivity by stabilizing star images on the instrument slit. The upgraded resolution is to be accomplished with a new immersed-silicon echelle grating. The novel design of the instrument provides the new capabilities at relatively low cost in comparison with facility instruments at other observatories. The spectrometer will be used with the telescopes of the Steward Observatory as well as with the upgraded 6.5 meter Multiple Mirror Telescope. ***