KOSMOS和COSMOS：用于NOAO 4米望远镜的新设施仪器
KOSMOS and COSMOS: New facility instruments for the NOAO 4-meter telescopes
摘要：
我们描述的设计，建造和测量性能的基特峰俄亥俄州多目标摄谱仪（KOSMOS）的4米Mayall望远镜和Cerro Tololo俄亥俄州多目标摄谱仪（COSMOS）的4米布兰科望远镜。这些几乎相同的成像光谱仪是OSMOS仪器的修改版本;它们为NOAO用户社区提供了一对新的高效仪器。KOSMOS和COSMOS可用于在100平方角分的视场上以0.29角秒的像素尺度进行成像、长缝和多缝光谱学。每个光栅都有两个VPH光栅，为R~2500提供一个角秒狭缝，其衍射效率峰值波长分别为510 nm和750 nm。两者都可以与e2 v的薄的蓝色优化CCD或LBNL的厚的完全耗尽的红色优化CCD一起使用。这些工具是根据ReSTAR进程开发的。KOSMOS于2013年B服役，COSMOS于2014年A服役。
英文摘要：
We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph (KOSMOS) for the 4-m Mayall telescope and the Cerro Tololo Ohio State Multi-Object Spectrograph (COSMOS) for the 4-m Blanco telescope. These nearly identical imaging spectrographs are modified versions of the OSMOS instrument; they provide a pair of new, high-efficiency instruments to the NOAO user community. KOSMOS and COSMOS may be used for imaging, long-slit, and multi-slit spectroscopy over a 100 square arcminute field of view with a pixel scale of 0.29 arcseconds. Each contains two VPH grisms that provide R~2500 with a one arcsecond slit and their wavelengths of peak diffraction efficiency are approximately 510nm and 750nm. Both may also be used with either a thin, blue-optimized CCD from e2v or a thick, fully depleted, red-optimized CCD from LBNL. These instruments were developed in response to the ReSTAR process. KOSMOS was commissioned in 2013B and COSMOS was commissioned in 2014A.
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