The Dawn of Disk Formation in a Milky Way-sized Galaxy Halo: Thin Stellar Disks at $z>4$

Tomas Tamfal, Lucio Mayer, Thomas R. Quinn +5

We present results from \textsc{GigaEris}, a cosmological, $N$-body hydrodynamical "zoom-in" simulation of the formation of a Milky Way-sized galaxy halo with unprecedented resolut…