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dc.contributor.authorGreene, Thomas P.*
dc.contributor.authorKelly, Douglas M.*
dc.contributor.authorStansberry, John*
dc.contributor.authorLeisenring, Jarron*
dc.contributor.authorEgami, Eiichi*
dc.contributor.authorSchlawin, Everett*
dc.contributor.authorChu, Laurie*
dc.contributor.authorHodapp, Klaus W.*
dc.contributor.authorRieke, Marcia*
dc.date.accessioned2017-11-17T16:51:24Z
dc.date.available2017-11-17T16:51:24Z
dc.date.issued2017-07-17
dc.identifier.citationλ = 2.4 to 5 μm spectroscopy with the James Webb Space Telescope NIRCam instrument 2017, 3 (3):035001 Journal of Astronomical Telescopes, Instruments, and Systemsen
dc.identifier.issn2329-4124
dc.identifier.doi10.1117/1.JATIS.3.3.035001
dc.identifier.urihttp://hdl.handle.net/10150/626090
dc.description.abstractThe James Webb Space Telescope near-infrared camera (JWST NIRCam) has two 2.'2 x 2.'2 fields of view that can be observed with either imaging or spectroscopic modes. Either of two R similar to 1500 grisms with orthogonal dispersion directions can be used for slitless spectroscopy over lambda = 2.4 to 5.0 mu m in each module, and shorter wavelength observations of the same fields can be obtained simultaneously. We describe the design drivers and parameters of the grisms and present the latest predicted spectroscopic sensitivities, saturation limits, resolving powers, and wavelength coverage values. Simultaneous short wavelength (0.6 to 2.3 mu m) imaging observations of the 2.4 to 5.0 mu m spectroscopic field can be performed in one of several different filter bands, either infocus or defocused via weak lenses internal to the NIRCam. The grisms are available for single-object time-series spectroscopy and wide-field multiobject slitless spectroscopy modes in the first cycle of JWST observations. We present and discuss operational considerations including subarray sizes and data volume limits. Potential scientific uses of the grisms are illustrated with simulated observations of deep extragalactic fields, dark clouds, and transiting exoplanets. Information needed to plan observations using these spectroscopic modes is also provided. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
dc.description.sponsorshipNASA JWST project for NIRCam [NASA WBS 411672.05.05.02.02]en
dc.language.isoenen
dc.publisherSPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERSen
dc.relation.urlhttp://astronomicaltelescopes.spiedigitallibrary.org/article.aspx?doi=10.1117/1.JATIS.3.3.035001en
dc.rights© The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.en
dc.subjectinfrared spectroscopyen
dc.subjectsatellitesen
dc.subjectspace opticsen
dc.subjectgratingsen
dc.subjectcamerasen
dc.titleλ = 2.4 to 5 μm spectroscopy with the James Webb Space Telescope NIRCam instrumenten
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Steward Observen
dc.identifier.journalJournal of Astronomical Telescopes, Instruments, and Systemsen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
dc.contributor.institutionNASA Ames Research Center, Moffett Field, California, United States
dc.contributor.institutionUniversity of Arizona, Steward Observatory, Tucson, Arizona, United States
dc.contributor.institutionSpace Telescope Science Institute, Baltimore, Maryland, United States
dc.contributor.institutionUniversity of Arizona, Steward Observatory, Tucson, Arizona, United States
dc.contributor.institutionUniversity of Arizona, Steward Observatory, Tucson, Arizona, United States
dc.contributor.institutionUniversity of Arizona, Steward Observatory, Tucson, Arizona, United States
dc.contributor.institutionUniversity of Hawaii, Institute for Astronomy, Hilo, Hawaii, United States
dc.contributor.institutionUniversity of Hawaii, Institute for Astronomy, Hilo, Hawaii, United States
dc.contributor.institutionUniversity of Arizona, Steward Observatory, Tucson, Arizona, United States
refterms.dateFOA2018-07-01T01:36:21Z
html.description.abstractThe James Webb Space Telescope near-infrared camera (JWST NIRCam) has two 2.'2 x 2.'2 fields of view that can be observed with either imaging or spectroscopic modes. Either of two R similar to 1500 grisms with orthogonal dispersion directions can be used for slitless spectroscopy over lambda = 2.4 to 5.0 mu m in each module, and shorter wavelength observations of the same fields can be obtained simultaneously. We describe the design drivers and parameters of the grisms and present the latest predicted spectroscopic sensitivities, saturation limits, resolving powers, and wavelength coverage values. Simultaneous short wavelength (0.6 to 2.3 mu m) imaging observations of the 2.4 to 5.0 mu m spectroscopic field can be performed in one of several different filter bands, either infocus or defocused via weak lenses internal to the NIRCam. The grisms are available for single-object time-series spectroscopy and wide-field multiobject slitless spectroscopy modes in the first cycle of JWST observations. We present and discuss operational considerations including subarray sizes and data volume limits. Potential scientific uses of the grisms are illustrated with simulated observations of deep extragalactic fields, dark clouds, and transiting exoplanets. Information needed to plan observations using these spectroscopic modes is also provided. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.


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