Monday

The advent of new telescopes like Euclid, Webb and Roman will give us insights into a large number of galaxies in the Epoch of Reionisation (EoR), and thus it is timely to model and predict the properties of these high redshift systems. Current available periodic boxes like EAGLE or IllustrisTNG are ill suited to do this, due to their small volumes and thus relative lack of bright rare galaxies. To overcome this, we have carried out a suite of zoom simulations targeting a range of overdensities in the EoR from a 3.2Gpc a side dark matter only box, termed the First Light And Reionisation Epoch Simulations (FLARES). This strategy yields more than an order of magnitude more massive galaxies than EAGLE. Composite distribution functions like the stellar mass function and luminosity functions, representative of the full parent volume, are derived using a novel weighting scheme. The increased dynamic range probed by FLARES allows us to make predictions for a number of large area surveys that will probe the EoR in coming years, such as Euclid and Nancy Grace Roman Space Telescope as well as JWST. In this talk I will introduce the FLARE simulations as well as the photometric properties of the galaxies in FLARES and discuss the role of dust in shaping the bright-end of the luminosity function. I will also briefly show the nebular line emission predictions from FLARES as well as the relative contribution of galaxies to the obscured and unobscured SFR density in the high-redshift Universe.