Early Results from GLASS-JWST. VI. Extreme Rest-optical Equivalent Widths Detected in NIRISS Wide Field Slitless Spectroscopy
Articolo
Data di Pubblicazione:
2022
Citazione:
Early Results from GLASS-JWST. VI. Extreme Rest-optical Equivalent Widths Detected in NIRISS Wide Field Slitless Spectroscopy / K. Boyett, S. Mascia, L. Pentericci, N. Leethochawalit, M. Trenti, G. Brammer, G. Roberts-Borsani, V. Strait, T. Treu, M. Bradac, K. Glazebrook, A. Acebron Munoz, P. Bergamini, A. Calabrò, M. Castellano, A. Fontana, C. Grillo, A. Henry, T. Jones, D. Marchesini, C. Mason, A. Mercurio, T. Morishita, T. Nanayakkara10, P. Rosati, C. Scarlata, E. Vanzella, B. Vulcani, X. Wang, C. Willott. - In: THE ASTROPHYSICAL JOURNAL LETTERS. - ISSN 2041-8205. - 940:2(2022 Dec 01), pp. L52.1-L52.8. [10.3847/2041-8213/ac9f17]
Abstract:
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.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
high-redshift galaxies; galaxy evolution
Elenco autori:
K. Boyett, S. Mascia, L. Pentericci, N. Leethochawalit, M. Trenti, G. Brammer, G. Roberts-Borsani, V. Strait, T. Treu, M. Bradac, K. Glazebrook, A. Acebron Munoz, P. Bergamini, A. Calabrò, M. Castellano, A. Fontana, C. Grillo, A. Henry, T. Jones, D. Marchesini, C. Mason, A. Mercurio, T. Morishita, T. Nanayakkara10, P. Rosati, C. Scarlata, E. Vanzella, B. Vulcani, X. Wang, C. Willott
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