Properties of gas outflows. From top to bottom: (a) the successive panels show outflow rate, (b) hydrogen number density, (c) radial velocity, (d) temperature, and (e) metallicity. Simulations with different star formation models are indicated by different color codes. Solid lines correspond to quantities measured at r = 0.3 r_vir, while dashed lines are measurements at 1 r_vir. The black dotted line in panel-(c) indicates the escape velocity from the DMH. Dotted lines in panel-(e) represent mean ISM metallicities within r = 0.2 r_vir.