Euclid preparation: XXVII. The NISP spectroscopy channel: Ground performance and calibration
Gillard, W.; Maciaszek, T.; Prieto, E.; Grupp, F.; Costille, A.; Jahnke, K.; Clemens, J.; Dusini, S.; Carle, M.; Sirignano, C.; Medinaceli, E.; Ligori, S.; Franceschi, E.; Trifoglio, M.; Bon, W.; Barbier, R.; Ferriol, S.; Secroun, A.; Auricchio, N.; Battaglia, P.; Bonoli, C.; Corcione, L.; Hormuth, F.; Le Mignant, D.; Morgante, G.; Padilla, C.; Toledo-Moreo, R.; Valenziano, L.; Bender, R.; Castander, F. J.; Lilje, P. B.; Balestra, A.; Barriere, J. J.C.; Berthe, M.; Boderndorf, C.; Bonnefoi, A.; Capobianco, V.; Casas, R.; Cho, H.; Ducret, F.; Gimenez, J. L.; Holmes, W.; Hornstrup, A.; Jhabvala, M.; Jullo, E.; Kohley, R.; Kubik, B.; Laureijs, R.; Lloro, I.; Macabiau, C.; Mellier, Y.; Polenta, G.; Racca, G. D.; Renzi, A.; Schirmer, M.; Seidel, G.; Seiffert, M.; Sirri, G.; Smadja, G.; Stanco, L.; Wachter, S.; Aussel, H.; Auphan, T.; Granett, B. R.; Chary, R.; Copin, Y.; Hudelot, P.; Le Brun, V.; Torradeflot, F.; Appleton, P. N.; Casenove, P.; Chabaud, P. Y.; Frailis, M.; Fumana, M.; Guzzo, L.; Mainetti, G.; Maino, D.; Moresco, M.; Percival, W. J.; Scaramella, R.; Scodeggio, M.; Stickley, N. R.; Vibert, D.; Wang, Y.; Zoubian, J.; Aghanim, N.; Altieri, B.; Amara, A.; Andreon, S.; Baccigalupi, C.; Baldi, M.; Bardelli, S.; Biviano, A.; Bonchi, A.; Branchini, E.; Brescia, M.; Brinchmann, J.; Camera, S.; Cañas-Herrera, G.; Carbone, C. (2026-03-17)
EDP sciences
17.03.2026
Euclid Collaboration, Gillard, W., Maciaszek, T., Prieto, E., Grupp, F., Costille, A., Jahnke, K., Clemens, J., Dusini, S., Carle, M., Sirignano, C., Medinaceli, E., Ligori, S., Franceschi, E., Trifoglio, M., Bon, W., Barbier, R., Ferriol, S., Secroun, A., … Zalesky, L. (2026). euclid preparation: Lxxvii. The nisp spectroscopy channel: ground performance and calibration. Astronomy & Astrophysics, 707, A227. https://doi.org/10.1051/0004-6361/202555859
https://creativecommons.org/licenses/by/4.0/
© The Authors 2026. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This article is published in open access under the Subscribe to Open model. Subscribe to A&A to support open access publication.
https://creativecommons.org/licenses/by/4.0/
© The Authors 2026. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This article is published in open access under the Subscribe to Open model. Subscribe to A&A to support open access publication.
https://creativecommons.org/licenses/by/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202604082495
https://urn.fi/URN:NBN:fi:oulu-202604082495
Tiivistelmä
Abstract
ESA’s Euclid cosmology mission relies on the very sensitive and accurately calibrated spectroscopy channel of the Near-Infrared Spectrometer and Photometer (NISP). With three operational grisms in two wavelength intervals, NISP provides diffraction-limited slitless spectroscopy over a field of 0.57 deg2. A blue grism, BGE, covers the wavelength range 926–1366 nm at a spectral resolution (ℛ) of 440–900 for a 0.″5 diameter source with a dispersion of 1.24 nm px−1. Two red grisms, RGE, span 1206 to 1892 nm at ℛ = 550–740 and a dispersion of 1.37 nm px−1. We describe the construction of the grisms as well as the ground testing of the flight model of the NISP instrument, where these properties were established.
ESA’s Euclid cosmology mission relies on the very sensitive and accurately calibrated spectroscopy channel of the Near-Infrared Spectrometer and Photometer (NISP). With three operational grisms in two wavelength intervals, NISP provides diffraction-limited slitless spectroscopy over a field of 0.57 deg2. A blue grism, BGE, covers the wavelength range 926–1366 nm at a spectral resolution (ℛ) of 440–900 for a 0.″5 diameter source with a dispersion of 1.24 nm px−1. Two red grisms, RGE, span 1206 to 1892 nm at ℛ = 550–740 and a dispersion of 1.37 nm px−1. We describe the construction of the grisms as well as the ground testing of the flight model of the NISP instrument, where these properties were established.
Kokoelmat
- Avoin saatavuus [42420]
Ellei muuten mainita, aineiston lisenssi on https://creativecommons.org/licenses/by/4.0/