A transition to low-opacity SNe-produced dust at z>9 reproduces the observed low attenuation and UV luminosity function excess in early galaxies.
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Corrected empirical limits show the most massive galaxies never exceed the theoretical baryonic maximum of 0.16 times halo virial mass, keeping observations consistent with LambdaCDM at all redshifts.
Hydrodynamical simulations underproduce faint compact galaxies at z>3 relative to CANDELS data, with the mismatch persisting after completeness corrections and pointing to deficiencies in star formation and feedback modeling.
citing papers explorer
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Stardust Galaxies at z>9: A Dust-Origin Transition Behind the Excess of UV-Bright Galaxies
A transition to low-opacity SNe-produced dust at z>9 reproduces the observed low attenuation and UV luminosity function excess in early galaxies.
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Empirical estimates of how massive galaxies can be in {\Lambda}CDM
Corrected empirical limits show the most massive galaxies never exceed the theoretical baryonic maximum of 0.16 times halo virial mass, keeping observations consistent with LambdaCDM at all redshifts.
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Probing the faint-end of simulated galaxy counts at z>3
Hydrodynamical simulations underproduce faint compact galaxies at z>3 relative to CANDELS data, with the mismatch persisting after completeness corrections and pointing to deficiencies in star formation and feedback modeling.