A known degeneracy between star formation efficiency and ionizing escape fraction is broken using JWST UV luminosity function shapes, excluding the early galaxy crisis at 4.5 sigma and yielding the first f_esc(z) reconstruction from z=7 to 12.
T.et al.JWST PRIMER: a new multifield determination of the evolving galaxy UV luminosity function at redshifts z≃9 –15.mnras533, 3222–3237 (2024)
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The JWST early galaxy crisis resolved by a reionization degeneracy
A known degeneracy between star formation efficiency and ionizing escape fraction is broken using JWST UV luminosity function shapes, excluding the early galaxy crisis at 4.5 sigma and yielding the first f_esc(z) reconstruction from z=7 to 12.