The near-infrared imager and slitless spectrograph for the James Webb Space Telescope: II. Wide field slitless spectroscopy

C.J. Willott; R. Doyon; L. Albert; G.B. Brammer; W.V. Dixon; K. Muzic; S. Ravindranath; A. Scholz; R. Abraham; É. Artigau; M. Bradač; P. Goudfrooij; J.B. Hutchings; K.G. Iyer; R. Jayawardhana; S. LaMassa; N. Martis; M.R. Meyer; T. Morishita; L. Mowla; A. Muzzin; G. Noirot; C. Pacifici; N. Rowlands; G. Sarrouh; M. Sawicki; J.M. Taylor; K. Volk; J. Zabl

doi:10.1088/1538-3873/ac5158

The near-infrared imager and slitless spectrograph for the James Webb Space Telescope: II. Wide field slitless spectroscopy

C.J. Willott^*, R. Doyon, L. Albert, G.B. Brammer, W.V. Dixon, K. Muzic, S. Ravindranath, A. Scholz, R. Abraham, É. Artigau, M. Bradač, P. Goudfrooij, J.B. Hutchings, K.G. Iyer, R. Jayawardhana, S. LaMassa, N. Martis, M.R. Meyer, T. Morishita, L. MowlaA. Muzzin, G. Noirot, C. Pacifici, N. Rowlands, G. Sarrouh, M. Sawicki, J.M. Taylor, K. Volk, J. Zabl

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We present the wide field slitless spectroscopy mode of the NIRISS instrument on the James Webb Space Telescope. This mode employs two orthogonal low-resolution (resolving power ≈150) grisms in combination with a set of six blocking filters in the wavelength range 0.8–2.3 μm to provide a spectrum of almost every source across the field-of-view. When combined with the low background, high sensitivity and high spatial resolution afforded by the telescope, this mode will enable unprecedented studies of the structure and evolution of distant galaxies. We describe the performance of the as-built hardware relevant to this mode and expected imaging and spectroscopic sensitivity. We discuss operational and calibration procedures to obtain the highest quality data. As examples of the observing mode usage, we present details of two planned Guaranteed Time Observations programs: The Canadian NIRISS Unbiased Cluster Survey and The NIRISS Survey for Young Brown Dwarfs and Rogue Planets.

Original language	English
Article number	025002
Number of pages	16
Journal	Publications of the Astronomical Society of the Pacific
Volume	134
Issue number	1032
Early online date	25 Feb 2022
DOIs	https://doi.org/10.1088/1538-3873/ac5158
Publication status	E-pub ahead of print - 25 Feb 2022

Keywords

Astronomical instrumentation
Infrared telescopes
Spectrometers

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Willott, C. J., Doyon, R., Albert, L., Brammer, G. B., Dixon, W. V., Muzic, K., Ravindranath, S., Scholz, A., Abraham, R., Artigau, É., Bradač, M., Goudfrooij, P., Hutchings, J. B., Iyer, K. G., Jayawardhana, R., LaMassa, S., Martis, N., Meyer, M. R., Morishita, T., ... Zabl, J. (2022). The near-infrared imager and slitless spectrograph for the James Webb Space Telescope: II. Wide field slitless spectroscopy. Publications of the Astronomical Society of the Pacific, 134(1032), Article 025002. Advance online publication. https://doi.org/10.1088/1538-3873/ac5158

@article{e15eb30273864be1a52450b56721d256,

title = "The near-infrared imager and slitless spectrograph for the James Webb Space Telescope: II. Wide field slitless spectroscopy",

abstract = "We present the wide field slitless spectroscopy mode of the NIRISS instrument on the James Webb Space Telescope. This mode employs two orthogonal low-resolution (resolving power ≈150) grisms in combination with a set of six blocking filters in the wavelength range 0.8–2.3 μm to provide a spectrum of almost every source across the field-of-view. When combined with the low background, high sensitivity and high spatial resolution afforded by the telescope, this mode will enable unprecedented studies of the structure and evolution of distant galaxies. We describe the performance of the as-built hardware relevant to this mode and expected imaging and spectroscopic sensitivity. We discuss operational and calibration procedures to obtain the highest quality data. As examples of the observing mode usage, we present details of two planned Guaranteed Time Observations programs: The Canadian NIRISS Unbiased Cluster Survey and The NIRISS Survey for Young Brown Dwarfs and Rogue Planets.",

keywords = "Astronomical instrumentation, Infrared telescopes, Spectrometers",

author = "C.J. Willott and R. Doyon and L. Albert and G.B. Brammer and W.V. Dixon and K. Muzic and S. Ravindranath and A. Scholz and R. Abraham and {\'E}. Artigau and M. Brada{\v c} and P. Goudfrooij and J.B. Hutchings and K.G. Iyer and R. Jayawardhana and S. LaMassa and N. Martis and M.R. Meyer and T. Morishita and L. Mowla and A. Muzzin and G. Noirot and C. Pacifici and N. Rowlands and G. Sarrouh and M. Sawicki and J.M. Taylor and K. Volk and J. Zabl",

note = "We acknowledge support from the Natural Sciences and Engineering Research Council of Canada (NSERC) through a variety of its funding programs. This work is in part supported by Canadian Space Agency grant 18JWSTGTO1. C.P., S.R. and K.V. are supported by the Canadian Space Agency under a contract with NRC Herzberg Astronomy and Astrophysics. K.M. acknowledges funding by the Science and Technology Foundation of Portugal (FCT), grants No. IF/00194/2015, PTDC/FIS-AST/28731/2017, UIDB/00099/2020.",

year = "2022",

month = feb,

day = "25",

doi = "10.1088/1538-3873/ac5158",

language = "English",

volume = "134",

journal = "Publications of the Astronomical Society of the Pacific",

issn = "0004-6280",

publisher = "University of Chicago",

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Willott, CJ, Doyon, R, Albert, L, Brammer, GB, Dixon, WV, Muzic, K, Ravindranath, S, Scholz, A, Abraham, R, Artigau, É, Bradač, M, Goudfrooij, P, Hutchings, JB, Iyer, KG, Jayawardhana, R, LaMassa, S, Martis, N, Meyer, MR, Morishita, T, Mowla, L, Muzzin, A, Noirot, G, Pacifici, C, Rowlands, N, Sarrouh, G, Sawicki, M, Taylor, JM, Volk, K & Zabl, J 2022, 'The near-infrared imager and slitless spectrograph for the James Webb Space Telescope: II. Wide field slitless spectroscopy', Publications of the Astronomical Society of the Pacific, vol. 134, no. 1032, 025002. https://doi.org/10.1088/1538-3873/ac5158

TY - JOUR

T1 - The near-infrared imager and slitless spectrograph for the James Webb Space Telescope

T2 - II. Wide field slitless spectroscopy

AU - Willott, C.J.

AU - Doyon, R.

AU - Albert, L.

AU - Brammer, G.B.

AU - Dixon, W.V.

AU - Muzic, K.

AU - Ravindranath, S.

AU - Scholz, A.

AU - Abraham, R.

AU - Artigau, É.

AU - Bradač, M.

AU - Goudfrooij, P.

AU - Hutchings, J.B.

AU - Iyer, K.G.

AU - Jayawardhana, R.

AU - LaMassa, S.

AU - Martis, N.

AU - Meyer, M.R.

AU - Morishita, T.

AU - Mowla, L.

AU - Muzzin, A.

AU - Noirot, G.

AU - Pacifici, C.

AU - Rowlands, N.

AU - Sarrouh, G.

AU - Sawicki, M.

AU - Taylor, J.M.

AU - Volk, K.

AU - Zabl, J.

N1 - We acknowledge support from the Natural Sciences and Engineering Research Council of Canada (NSERC) through a variety of its funding programs. This work is in part supported by Canadian Space Agency grant 18JWSTGTO1. C.P., S.R. and K.V. are supported by the Canadian Space Agency under a contract with NRC Herzberg Astronomy and Astrophysics. K.M. acknowledges funding by the Science and Technology Foundation of Portugal (FCT), grants No. IF/00194/2015, PTDC/FIS-AST/28731/2017, UIDB/00099/2020.

PY - 2022/2/25

Y1 - 2022/2/25

N2 - We present the wide field slitless spectroscopy mode of the NIRISS instrument on the James Webb Space Telescope. This mode employs two orthogonal low-resolution (resolving power ≈150) grisms in combination with a set of six blocking filters in the wavelength range 0.8–2.3 μm to provide a spectrum of almost every source across the field-of-view. When combined with the low background, high sensitivity and high spatial resolution afforded by the telescope, this mode will enable unprecedented studies of the structure and evolution of distant galaxies. We describe the performance of the as-built hardware relevant to this mode and expected imaging and spectroscopic sensitivity. We discuss operational and calibration procedures to obtain the highest quality data. As examples of the observing mode usage, we present details of two planned Guaranteed Time Observations programs: The Canadian NIRISS Unbiased Cluster Survey and The NIRISS Survey for Young Brown Dwarfs and Rogue Planets.

AB - We present the wide field slitless spectroscopy mode of the NIRISS instrument on the James Webb Space Telescope. This mode employs two orthogonal low-resolution (resolving power ≈150) grisms in combination with a set of six blocking filters in the wavelength range 0.8–2.3 μm to provide a spectrum of almost every source across the field-of-view. When combined with the low background, high sensitivity and high spatial resolution afforded by the telescope, this mode will enable unprecedented studies of the structure and evolution of distant galaxies. We describe the performance of the as-built hardware relevant to this mode and expected imaging and spectroscopic sensitivity. We discuss operational and calibration procedures to obtain the highest quality data. As examples of the observing mode usage, we present details of two planned Guaranteed Time Observations programs: The Canadian NIRISS Unbiased Cluster Survey and The NIRISS Survey for Young Brown Dwarfs and Rogue Planets.

KW - Astronomical instrumentation

KW - Infrared telescopes

KW - Spectrometers

U2 - 10.1088/1538-3873/ac5158

DO - 10.1088/1538-3873/ac5158

M3 - Article

SN - 0004-6280

VL - 134

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

IS - 1032

M1 - 025002

ER -

The near-infrared imager and slitless spectrograph for the James Webb Space Telescope: II. Wide field slitless spectroscopy

Abstract

Keywords

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