Image Details
Caption: Figure 4.
Color–color space of EROs (Barro et al. 2024) colored by redshift, where sources with red squares are selected as ERO based on visual inspection. These sources are bright and point-source-like in F444W, exhibiting blue rest-frame UV colors with redder rest-frame optical colors. Due to the brightness of these sources at λ observed > 3 μm, SED fits generally recover large stellar masses. However, these galaxies have photometric colors consistent (and degenerate) with different combinations of dust-obscured massive star-forming galaxies, less massive non-dust-obscured galaxies, and dust-reddened AGN. Due to these degeneracies, the estimated stellar masses can vary significantly, up to ∼3 dex, depending on the assumed galaxy components. Therefore, we remove these sources from our fiducial analysis; however, we still show cumulative number densities found inclusive of these objects for comparison (Figure 5).
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© 2024. The Author(s). Published by the American Astronomical Society.
