MRI: Development of a High-Resolution Spectrograph for the NASA Infrared Telescope Facility

这是一个为红外望远镜设施设计和建造设施级红外交叉分散光谱仪的项目，该仪器将在1.1-2.0微米时提供高达80,000的分辨率，在3-5微米时提供高达67,000的分辨率。光谱仪是围绕硅浸没光栅设计的，这不仅减小了仪器的尺寸，还允许在不需要极窄狭缝的情况下实现高光谱分辨率。硅浸没光栅的使用很重要，因为这将是1-5米设备仪器上的第一次应用，因此将是这项技术在下一代大望远镜上的未来仪器的重要展示。红外线望远镜设施的观测时间向普通天文学团体开放，因此这台光谱仪将产生重大而广泛的影响。该项目还将培养天文学研究生。

This is a project to design and build a facility-class infrared cross-dispersed spectrograph instrument for the Infrared Telescope Facility which will provide a resolving power of up to 80,000 at 1.1 - 2.0 microns and 67,000 at 3 - 5 microns. The spectrograph is designed around a silicon immersion grating which not only reduces the size of the instrument but also permits high spectral resolution without requiring an extremely narrow slit. The use of the silicon immersion grating is important as this will be the first application on a 1-5 meter facility instrument and will therefore be an important demonstration of this technology for future instrumentation on the next generation of large telescopes. Observing time at the Infrared Telescope Facility is available to the general astronomical community so that this spectrograph will have a significant broader impact. The project will also train astronomy graduate students.