Throughout the paper we assume H₀ = 70 km s^-1 Mpc^-1, $\Omega_{\rm m}=0.3$ and $\Omega_{\Lambda}=0.7$ . At the average redshift of the A3558 complex (z=0.05), this cosmology leads to a linear scale of 1 arcsec = 0.98 kpc.

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We used $v_k^2 \sim {\eta_{_{\rm MS}}{E_{\rm th}\over 2\rho}}$ , $\rho$ = density of the thermal ICM, using a Kraichnan spectrum.

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