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A Census from JWST of Extreme Emission-line Galaxies Spanning the Epoch of Reionization in CEERS

  • Authors: Kelcey Davis, Jonathan R. Trump, Raymond C. Simons, Elizabeth J. McGrath, Stephen M. Wilkins, Pablo Arrabal Haro, Micaela B. Bagley, Mark Dickinson, Vital Fernández, Ricardo O. Amorín, Bren E. Backhaus, Nikko J. Cleri, Mario Llerena, Samantha W. Brunker, Guillermo Barro, Laura Bisigello, Madisyn Brooks, Luca Costantin, Alexander de la Vega, Avishai Dekel, Steven L. Finkelstein, Nimish P. Hathi, Michaela Hirschmann, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Ray A. Lucas, Casey Papovich, Pablo G. Pérez-González, Nor Pirzkal, Giulia Rodighiero, Caitlin Rose, L. Y. Aaron Yung

Kelcey Davis et al 2024 The Astrophysical Journal 974 .

  • Provider: AAS Journals

Caption: Figure 8.

Examples of EELGs in confidence Tier 2B, with only one extreme emission feature (Hβ + [O III]) identified in a filter that is inconsistent with the SED-derived photometric redshift. Photometry postage stamps show a continuum filter (top) and an extreme emission filter (bottom), with north up and east left. All postage stamps are 4″ in width and height. Panel (A): extreme emission in F356W consistent with Hβ + [O III] at z ≈ 6.5. Panel (B): extreme emission in F356W consistent with Hβ + [O III] at z ≈ 6.5. The morphology exhibits a significant size difference between the continuum and emission filters, suggesting the presence of an extended ionization region. Panel (C): emission in F444W consistent with Hβ + [O III]. The SED shape is similar to extremely red objects reported by Barro et al. (2024), with a combination of a flat continuum in bluer filters and red emission in redder filters. The inferred Hβ + [O III] emission implies z < 9.5, inconsistent with the higher photometric redshift.

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