Same as Fig. 2, but for the parameters m = 10, α = 0.3, ṁ = 1.7 × α² = 1.53 × 10⁻², β = 0.5. Left panel: evolution of some important nuclei. Right panel: differential photon luminosity of nuclear γ-rays (blue curve) and the π⁰-decay γ-rays (cyan line). The luminosity of the thermal electron bremsstrahlung is also shown (red dashed curve). The advection factor for this model is f = 0.58 and the accretion luminosity is L_acc = 2.1 × 10³⁷ erg s⁻¹. The total luminosity in the nuclear γ-ray lines and continuum is L_N = 1 × 10³³ erg s⁻¹ and the luminosity radiated through the thermal π⁰-meson production is L_π = 3.3 × 10³⁵ erg s⁻¹.