Fig. 1.
Evolution of the galactic disk for Run I (G0 = 4; 100, 200, 250, and 300 Myr from left to right). Images are 20 kpc across and show the disk gas mass surface density Σ (top row) and mass-weighted temperature T (bottom row), integrated vertically over the disk (over a range −1 kpc < z < +1 kpc).