A New Spectrograph for the University of Hawaii 2.2-m Telescope

一个多功能和高效的低到中等分辨率 夏威夷大学2.2-m光谱仪上的通用光谱仪 将在莫纳克亚山上建造望远镜。 而 光谱仪将能够进行全方位的 常规成像和光谱程序，特别 已经注意到三个重要的具体领域， 用户：（1）高角分辨率光谱，（2）光谱 在单个仪器中提供从3600 A到2.3 um的范围， (3)一个容易接近的狭缝环境， 各种各样的狭缝、孔径板和图像切片器。 的 仪器将能够与压电- 目前正在开发的电动f/35辅助发动机， 为高分辨率成像提供快速引导， 谱 这种仪器的多功能性，特别是它的能力， 在成像和光谱模式之间切换， 秒，并在宽光谱范围内工作-将使“块 安排“望远镜”是一个更可行的选择。 的 因此可以减少仪器更换的频率， 预计将改善整个设施的运作。

A versatile and efficient low- to moderate- resolution spectrograph for general use on the University of Hawaii's 2.2-m telescope on Mauna Kea will be constructed. While the spectrograph will be capable of carrying out a full range of conventional imaging and spectroscopic programs, special attention has been given to three specific areas important to users: (1) high-angular-resolution spectroscopy, (2) a spectral range from 3600 A to 2.3 um available in a single instrument, and (3) an easily accessible slit environment capable of taking a wide variety of slits, aperture plates, and image slicers. The instrument will be able to function in conjunction with a piezo- electrically-driven f/35 secondary currently being developed to provide fast guiding for high-resolution imaging and spectroscopy. The versatility of this instrument-particularly its abilities to switch between imaging and spectroscopic modes in a matter of seconds and to work over a wide spectral range- will make "block scheduling" of the telescope a more feasible option. The consequent reduction in frequency of instrument changes can be expected to improve the operation of the entire facility.