LYRA III: The smallest Reionization survivors

Understand

The dividing line between galaxies that are quenched by reionization ("relics") and galaxies that survive reionization (i.e.

• continue forming stars) is commonly discussed in terms of a halo mass threshold.
• We probe this threshold in a physically more complete and accurate way than has been possible to date, using five extremely high resolution ($M_\mathrm{target}=4M_\odot$) cosmological zoom-in simulations of dwarf galaxies within the halo mass range $1-4\times10^9M_\odot$.
• The employed LYRA simulation model features resolved interstellar medium physics and individual, resolved supernova explosions.