Evolution of gas density (arbitrary units), temperature, Mach number, kinetic energy flux of shocked gas, and radio power at 1.4 GHz (from left to right) during a major galaxy cluster binary merger in the sample for two colliding clusters of masses M_200,1 = 4.56 × 10¹⁴ M_⊙ and M_200,2 = 2.29 × 10¹⁴ M_⊙ and impact parameter at z_start of b = 140 kpc (b₂₀₀ = 0.19; see text). Each panel shows a region of dimensions 10 × 10 × 10 cMpc³ centred on the main progenitor. Cosmic times t′ with respect to the core-passage time t_cp ≈ 6 Gyr (z_cp = 0.963) are shown (from top to bottom): (a) t′ = −609 Myr, (b) t′ = −91 Myr, (c) t′ = 91 Myr, (d) t′ = 282 Myr, (e) t′ = 477 Myr and (f) t′ = 672 Myr. Dotted circles in each panel indicate R_200,1 (t), R_vir,l(t) and 2R_200,1(t) moving outwards, respectively.