A redshift-independent efficiency model: star formation and stellar masses in dark matter halos at z>4

Understand

We explore the connection between the UV luminosity functions (LFs) of high-$z$ galaxies and the distribution of stellar masses and star-formation histories (SFHs) in their host dark matter halos.

• We provide a baseline for a redshift-independent star-formation efficiency model to which observations and models can be compared.
• Our model assigns a star-formation rate (SFR) to each dark matter halo based on the growth rate of the halo and a redshift-independent star-formation efficiency.
• The dark matter halo accretion rate is obtained from a high-resolution $N$-body simulation in order to capture the stochasticity in accretion histories and to obtain spatial information for the distribution of galaxies.