Fig. 7.

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Comparison of the integrated efficiency at z = 6 (top) and z ≃ 9 (bottom) between FirstLight (solid black lines, as in Figure 5), pre-JWST observations by Stefanon et al. (2021) (points with error bars), SPHINX (dashed) and FIRE-2 (solid) simulations, and semi-empirical models by Behroozi & Silk (2015) (red contour), Tacchella et al. (2018) (dot-dashed), Behroozi et al. (2019) (dotted), and Li et al. (2024) models of FFB with ϵmax = 0.2 and 1 (solid grey lines).
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