The Near-Infrared Spectrograph (NIRSpec) on theJames WebbSpace Telescope
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Published:2022-05
Issue:
Volume:661
Page:A80
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ISSN:0004-6361
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Container-title:Astronomy & Astrophysics
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language:
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Short-container-title:A&A
Author:
Jakobsen P.ORCID, Ferruit P.ORCID, Alves de Oliveira C.ORCID, Arribas S.ORCID, Bagnasco G., Barho R., Beck T. L., Birkmann S.ORCID, Böker T.ORCID, Bunker A. J., Charlot S.ORCID, de Jong P., de Marchi G.ORCID, Ehrenwinkler R., Falcolini M., Fels R., Franx M.ORCID, Franz D., Funke M., Giardino G.ORCID, Gnata X., Holota W., Honnen K., Jensen P. L., Jentsch M., Johnson T., Jollet D., Karl H., Kling G., Köhler J., Kolm M.-G., Kumari N.ORCID, Lander M. E., Lemke R., López-Caniego M., Lützgendorf N.ORCID, Maiolino R., Manjavacas E.ORCID, Marston A.ORCID, Maschmann M., Maurer R., Messerschmidt B., Moseley S. H., Mosner P., Mott D. B., Muzerolle J.ORCID, Pirzkal N.ORCID, Pittet J.-F., Plitzke A., Posselt W., Rapp B., Rauscher B. J., Rawle T.ORCID, Rix H.-W.ORCID, Rödel A., Rumler P., Sabbi E., Salvignol J.-C., Schmid T., Sirianni M., Smith C., Strada P., te Plate M., Valenti J., Wettemann T., Wiehe T., Wiesmayer M., Willott C. J., Wright R., Zeidler P.ORCID, Zincke C.
Abstract
We provide an overview of the design and capabilities of the near-infrared spectrograph (NIRSpec) onboard theJames WebbSpace Telescope. NIRSpec is designed to be capable of carrying out low-resolution (R = 30−330) prism spectroscopy over the wavelength range 0.6–5.3 μm and higher resolution (R = 500−1340 orR = 1320−3600) grating spectroscopy over 0.7–5.2 μm, both in single-object mode employing any one of five fixed slits, or a 3.1 × 3.2 arcsec2integral field unit, or in multiobject mode employing a novel programmable micro-shutter device covering a 3.6 × 3.4 arcmin2field of view. The all-reflective optical chain of NIRSpec and the performance of its different components are described, and some of the trade-offs made in designing the instrument are touched upon. The faint-end spectrophotometric sensitivity expected of NIRSpec, as well as its dependency on the energetic particle environment that its two detector arrays are likely to be subjected to in orbit are also discussed.
Subject
Space and Planetary Science,Astronomy and Astrophysics
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