학술논문
The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope III. Integral-field spectroscopy
Document Type
Working Paper
Author
Böker, T.; Arribas, S.; Lützgendorf, N.; de Oliveira, C. Alves; Beck, T. L.; Birkmann, S.; Bunker, A. J.; Charlot, S.; de Marchi, G.; Ferruit, P.; Giardino, G.; Jakobsen, P.; Kumari, N.; López-Caniego, M.; Maiolino, R.; Manjavacas, E.; Marston, A.; Moseley, S. H.; Muzerolle, J.; Ogle, P.; Pirzkal, N.; Rauscher, B.; Rawle, T.; Rix, H. W.; Sabbi, E.; Sargent, B.; Sirianni, M.; Plate, M. te; Valenti, J.; Willott, C. J.; Zeidler, P.
Source
A&A 661, A82 (2022)
Subject
Language
Abstract
The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST) offers the first opportunity to use integral-field spectroscopy from space at near-infrared wavelengths. More specifically, NIRSpec's integral-field unit can obtain spectra covering the wavelength range $0.6 - 5.3~\mu$m for a contiguous 3.1 arcsec $\times$ 3.2 arcsec sky area at spectral resolutions of $R \approx 100$, 1000, and 2700. In this paper we describe the optical and mechanical design of the NIRSpec integral-field spectroscopy mode, together with its expected performance. We also discuss a few recommended observing strategies, some of which are driven by the fact that NIRSpec is a multipurpose instrument with a number of different observing modes, which are discussed in companion papers. We briefly discuss the data processing steps required to produce wavelength- and flux-calibrated data cubes that contain the spatial and spectral information. Lastly, we mention a few scientific topics that are bound to benefit from this highly innovative capability offered by JWST/NIRSpec.
Comment: Accepted for publication in A&A. 13 pages, 14 figures
Comment: Accepted for publication in A&A. 13 pages, 14 figures