Scales of the radio sources, d₂₅, at the radio power 10²⁵ W Hz⁻¹ (left) and the corresponding times (right), varying with the jet powers, P_jet, in simulations with diverse jet parameters, as listed in Table 1. The dots in the right panel represent the time t₂₅ when the radio power of the source declines to 10²⁵ W Hz⁻¹. The horizontal lines in the right panel mark the time when the corresponding jet stops being powered, t_jet. The triangles denote t_jet + t_syn(t_jet) (upward) and t₂₅ + t_syn(t₂₅) (downward), where t_syn(t) is the typical synchrotron cooling time at 144(1 + z) MHz for the volume-averaged magnetic field strength corresponding to the time t calculated using Eq. (C.11). The jet powers are normalized by the typical feedback power (bottom) and Eddington luminosity (top), as discussed in Sect. 2.3. The stars are color-coded to represent distinct fractions of energy components and the magnetic structure parameter, α_p.