Fig. 9


Contribution of LAEs to the cosmic SFRD in our three redshift bins at 2.91 ≤ z < 4.00, 4.00 ≤ z < 5.00, and 5.00 ≤ z < 6.64 integrating to log10L = 41.0 (0.02L in the lower two redshift bins, and 0.03 L in our highest redshift bin). The lighter blue stars show the results of Ouchi et al. (2008) for a full integration of the Lyα luminosity function. The LAE results are compared to literature studies of continuum-selected galaxies traced by the solid and dashed lines. We find that LAEs’ contribution to the SFRD rises towards higher redshift, although their contribution relative to that of more massive galaxies is uncertain due to various limitations (e.g. inhomogeneous integration limits from many different surveys, and the uncertainty in translating Lyα luminosity density to an SFRD).

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