Comparison of the gas volume density profiles along the r-axis (left column) and z-axis (right column). In particular, models in the top row are characterized by different gas temperatures T_g (as indicated), the second top row by different spin parameters α, the third top row by different effective gas dispersions σ_eff, and the bottom row by different redshift for galaxy formation z_gf. All other parameters for every model are the same (see text for more details).