| DOI | Resolve DOI: https://doi.org/10.1117/12.926578 |
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| Author | Search for: Doyon, R.; Search for: Hutchings, J.1; Search for: Beaulieu, M.; Search for: Albert, L.; Search for: Lafrenière, D.; Search for: Willott, C.1; Search for: Touahri, D.; Search for: Rowlands, N.; Search for: Maszkiewicz, M.; Search for: Fullerton, A.; Search for: Volk, K.; Search for: Martel, A.; Search for: Chayer, P.; Search for: Sivaramakrishnan, A.; Search for: Abraham, R.; Search for: Ferrarese, L.1; Search for: Jayawardhana, R.; Search for: Johnstone, D.1; Search for: Meyer, M.; Search for: Pipher, J.; Search for: Sawicki, M. |
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| Affiliation | - National Research Council of Canada. NRC Herzberg Institute of Astrophysics
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| Format | Text, Article |
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| Conference | Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, July 1-6, 2012, Amsterdam, The Netherlands |
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| Subject | Angular separation; Broadband filters; Broadband imaging; Exo-planets; Field of views; Fine guidance sensors; High contrast imaging; Infra-red cameras; Interferometric imaging; JWST instrumentation; Near Infrared; Point sources; Sparse aperture; Wavelength coverage; Wavelength ranges; Wide-field; Infrared devices; Interferometry; Millimeter waves; Sensors; Source separation; Space telescopes; Spectrographs; Spectroscopy; Instruments |
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| Abstract | The Fine Guidance Sensor (FGS) is one of the four science instruments on board the JamesWebb Space Telescope (JWST). FGS features two modules: an infrared camera dedicated to fine guiding of the observatory and a science camera module, the Near-Infrared Imager and Slitless Spectrograph (NIRISS) covering the wavelength range between 0.7 and 5.0 μm with a field of view of 2.2'×2.2'. NIRISS has four observing modes: 1) broadband imaging featuring seven of the eight NIRCam broadband filters, 2) wide-field slitless spectroscopy at a resolving power of ̃150 between 1 and 2.5 μm, 3) single-object cross-dispersed slitless spectroscopy enabling simultaneous wavelength coverage between 0.7 and 2.5 μm at R ̃ 660, a mode optimized for transit spectroscopy of relatively bright (J > 7) stars and, 4) sparse aperture interferometric imaging between 3.8 and 4.8 μm enabling high- contrast (̃ 10-4) imaging of M < 8 point sources at angular separations between 70 and 500 milliarcsec. This paper presents an overview of the FGS/NIRISS design with a focus on the scientific capabilities and performance offered by NIRISS. © 2012 SPIE. |
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| Publication date | 2012 |
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| Publisher | SPIE |
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| In | |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21269424 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 33026ae4-994b-402b-adb3-9dfae33c4c8a |
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| Record created | 2013-12-12 |
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| Record modified | 2020-04-21 |
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