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The aim is to measure the UV luminosity function of galaxies at redshifts 0.4 to 0.7, focusing on faint galaxies.

The Faint End of the UV Luminosity Function at 0.4 < z < 0.7 from the Hubble Frontier Fields

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The aim is to measure the UV luminosity function of galaxies at redshifts 0.4 to 0.7, focusing on faint galaxies.
Extended Hubble Frontier Fields observations using F225W band.
Identified 152 faint galaxies in A2744 field through hybrid photometric-spectroscopic selection.
Derived best-fit Schechter parameters for UV luminosity function using maximum likelihood estimation.
Derived faint-end slope of α = –1.32 with confidence limits.
Ruled out a turnover in luminosity function brighter than M UV = –15.5 at 3σ confidence level.

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Observations measure UV luminosity function in distant galaxies, implying insights into low-luminosity galaxies.

Sun et al. (2026) studied this question.

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