Calculation results of Model 1: the current photon spectrum (top left), the evolution of the particle spectra (top right), the timescales (bottom left), and the evolution of the fractional energy (bottom right). See the caption in Figure 1 for details. In the top left and  top right panels, the photon and particle spectra at 1/2t_age = 475 years (dotted yellow) and 2t_age = 1900 years (dashed yellow) are added (discussed in Section 4.1). The dashed yellow lines in the top right panel are the particle spectra at 10t_age = 9.5 kyr. Model 1 adopts Q_ext = Q_cont and finite values of τ_turb and γ_cut in Equation (5). The used parameters are summarized in Table 1.