NIRSpec: near-infrared spectrograph for the JWST
NIRSpec: near-infrared spectrograph for the JWST
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NIRSpec：JWST 近红外光谱仪
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
P. Ferruit
中科院分区：
文献类型：
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作者：
W. Posselt;W. Holota;Ernst Kulinyak;G. Kling;T. Kutscheid;O. Le Fèvre;É. Prieto;P. Ferruit
詹姆斯·韦伯太空望远镜（英语：James Webb Space Telescope，JWST）是一个被动冷却的6.5米口径望远镜，在近红外波段（1 - 5 μm）的衍射极限性能进行了优化。JWST将能够进行高分辨率成像和光谱分析，并将携带由三个科学仪器组成的科学有效载荷。其中一台仪器---- NIRSpec ----是一台近红外、多目标、色散摄谱仪，将由欧空局提供。埃兹公司及其分包商参与了JWST的所有欧空局仪器研究。实际的NIRSpec设计是在三年的不同光谱仪设计和性能选择的研究中发展起来的。当前设计的基本特征是仪器结构和反射镜光学的全陶瓷材料概念;两者都在组件级上成功测试。本文介绍了我们的NIRSpec设计概念和它的预测性能。
The James Webb Space Telescope (JWST) is a passively cooled, 6.5m aperture class telescope, optimized for diffraction-limited performance in the near-infrared wavelength region (1 - 5 μm). JWST will be capable of high-resolution imaging and spectroscopy and will carry a scientific payload consisting of three scientific instruments. One of the instruments - NIRSpec - is a near-infrared, multi-object, dispersive spectrograph, which will be provided by ESA. EADS Astrium and its subcontractors have been involved in all ESA instrument studies for JWST. The actual NIRSpec design has evolved during three years of studying of different spectrometer design and performance options. Basic feature of the current design is the all ceramic material concept for the instrument structure and mirror optics; both were successfully tested on component level. This paper presents our NIRSpec design concept and its predicted performance.