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Early Results from GLASS-JWST. VI. Extreme Rest-optical Equivalent Widths Detected in NIRISS Wide Field Slitless Spectroscopy

Boyett, K. and Mascia, S. and Pentericci, L. and Leethochawalit, N. and Trenti, M. and Brammer, G. and Roberts-Borsani, G. and Strait, V. and Treu, T. and Bradac, M. and Glazebrook, K. and Acebron, A. and Bergamini, P. and Calabrò, A. and Castellano, M. and Fontana, A. and Grillo, C. and Henry, A. and Jones, T. and Marchesini, D. and Mason, C. and Mercurio, A. and Morishita, T. and Nanayakkara, T. and Rosati, P. and Scarlata, C. and Vanzella, E. and Vulcani, B. and Wang, X. and Willott, C. (2022) Early Results from GLASS-JWST. VI. Extreme Rest-optical Equivalent Widths Detected in NIRISS Wide Field Slitless Spectroscopy. Astrophysical Journal Letters, 940 (2). Art. No. L52. ISSN 2041-8205. doi:10.3847/2041-8213/ac9f17.

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Wide Field Slitless Spectroscopy (WFSS) provides a powerful tool for detecting strong line emission in star-forming galaxies (SFGs) without the need for target preselection. As part of the GLASS-JWST Early Release Science (ERS) program, we leverage the near-infrared wavelength capabilities of NIRISS (1–2.2 μm) to observe rest-optical emission lines out to z ∼ 3.4, to a depth and with a spatial resolution higher than ever before (Hα to z < 2.4; [O III] + Hβ to z < 3.4). In this Letter we constrain the rest-frame [O III]λ5007 equivalent width (EW) distribution for a sample of 76 1 < z < 3.4 SFGs in the A2744 Hubble Frontier Field and determine an abundance fraction of extreme emission line galaxies with EW > 750Å in our sample to be 12%. We determine a strong correlation between the measured Hβ and [O III]λ5007 EWs, supporting that the high [O III]λ5007 EW objects require massive stars in young stellar populations to generate the high-energy photons needed to doubly ionize oxygen. We extracted spectra for objects up to 2 mag fainter in the near-infrared than previous WFSS studies with the Hubble Space Telescope. Thus, this work clearly highlights the potential of JWST/NIRISS to provide high-quality WFSS data sets in crowded cluster environments.

Item Type:Article
Related URLs:
URLURL TypeDescription
Boyett, K.0000-0003-4109-304X
Mascia, S.0000-0002-9572-7813
Pentericci, L.0000-0001-8940-6768
Leethochawalit, N.0000-0003-4570-3159
Trenti, M.0000-0001-9391-305X
Brammer, G.0000-0003-2680-005X
Roberts-Borsani, G.0000-0002-4140-1367
Strait, V.0000-0002-6338-7295
Treu, T.0000-0002-8460-0390
Bradac, M.0000-0001-5984-0395
Glazebrook, K.0000-0002-3254-9044
Acebron, A.0000-0003-3108-9039
Bergamini, P.0000-0003-1383-9414
Calabrò, A.0000-0003-2536-1614
Castellano, M.0000-0001-9875-8263
Fontana, A.0000-0003-3820-2823
Grillo, C.0000-0002-5926-7143
Henry, A.0000-0002-6586-4446
Jones, T.0000-0001-5860-3419
Marchesini, D.0000-0001-9002-3502
Mason, C.0000-0002-3407-1785
Mercurio, A.0000-0001-9261-7849
Morishita, T.0000-0002-8512-1404
Nanayakkara, T.0000-0003-2804-0648
Rosati, P.0000-0002-6813-0632
Scarlata, C.0000-0002-9136-8876
Vanzella, E.0000-0002-5057-135X
Vulcani, B.0000-0003-0980-1499
Wang, X.0000-0002-9373-3865
Willott, C.0000-0002-4201-7367
Additional Information:This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program JWST-ERS-1324. We acknowledge financial support from NASA through grant JWST-ERS-1324. K.G. and T.N. acknowledge support from Australian Research Council Laureate Fellowship FL180100060. This research is supported in part by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. We acknowledge financial support through grants PRIN-MIUR 2017WSCC32 and 2020SKSTHZ. M.B. acknowledges support from the Slovenian national research agency ARRS through grant N1-0238. C.M. acknowledges support by the VILLUM FONDEN under grant 37459. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant DNRF140. Data Availability. We provide measured rest-optical emission line properties (Table 1) for the full sample in a machine-readable format. Further catalogs and the routines used in this work are available from the authors upon reasonable request. The raw JWST observations are publicly available from STSCI and on MAST at doi:10.17909/s6nb-x394.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
NASANAS 5-03127
Australian Research CouncilFL180100060
Australian Research CouncilCE170100013
Ministero dell'Istruzione, dell'Universitá e della Ricerca (MIUR)2017WSCC32
Ministero dell'Istruzione, dell'Universitá e della Ricerca (MIUR)2020SKSTHZ
Slovenian Research AgencyN1-0238
Villum Foundation37459
Danish National Research FoundationDNRF140
Issue or Number:2
Record Number:CaltechAUTHORS:20230105-911538600.10
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:118747
Deposited By: Research Services Depository
Deposited On:08 Feb 2023 02:32
Last Modified:08 Feb 2023 02:32

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