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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 7.

Examples of EELGs in confidence Tier 2A, identified to have extreme emission in two filters, but with low-redshift z _phot solutions. 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 associated with Hα in F277W and Hβ + [O III] in F410M, consistent with z ≈ 5. In the F200W continuum postage stamp, this source appears to be two close-companion EELGs. Panels (B) and (C): extreme emission associated with Hα in F277W and Hβ + [O III] in F356W, consistent with z ≈ 4–5. The observed SEDs of these sources are very similar to the spectroscopically confirmed EELG shown in panel (A) of Figure 3, suggesting that they are bona fide EELGs but with incorrect photometric redshifts.

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