Distribution of the magnetic field strength as a function of density. This histogram was computed with the fiducial simulation run on grid ×16, for time t = 7 kyr. The color scale indicates the polar angle: the dark purple colors correspond to the midplane (with the disk corresponding to ρ ≳ 10⁻¹⁵ g cm⁻³) and the light blue colors correspond to the rotation axis (where the jet is located).