Overall structure of the flow (upper half of the simulation domain). Panels from left to right show maps of the density, magnetic field strength, gas temperature, and bulk speed of the gas. The first two are given in dimensionless numerical code units. Solid and dashed contours illustrate our jet and disk definitions, which are introduced in Sect. 2. The solid line separates the jet from the disk, and the dashed line separates the jet spine from jet sheath.