NIRSpec: near-infrared spectrograph for the JWST

Winfried Posselt; Wolfgang Holota; Ernst Kulinyak; Guenther Kling; Thomas Kutscheid; Olivier Le Fevre; Eric Prieto; Pierre Ferruit

doi:10.1117/12.555659

12 October 2004 NIRSpec: near-infrared spectrograph for the JWST

Winfried Posselt, Wolfgang Holota, Ernst Kulinyak, Guenther Kling, Thomas Kutscheid, Olivier Le Fevre, Eric Prieto, Pierre Ferruit

Author Affiliations +

Proceedings Volume 5487, Optical, Infrared, and Millimeter Space Telescopes; (2004) https://doi.org/10.1117/12.555659
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

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.

Citation Download Citation

Winfried Posselt, Wolfgang Holota, Ernst Kulinyak, Guenther Kling, Thomas Kutscheid, Olivier Le Fevre, Eric Prieto, and Pierre Ferruit "NIRSpec: near-infrared spectrograph for the JWST", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); https://doi.org/10.1117/12.555659

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