Estimated gas mass (this work) as a function of distance (solid line). The shaded region corresponds to the gas mass derived assuming the total mass of the cluster can take values from 5 × 10¹⁴ M_⊙ to 7 × 10¹⁴ M_⊙ and that the fraction of mass corresponding to the gas equals the cosmic value, f_b = Ω_b/ Ω_m = 0.1834. The shaded region assumes also that different estimates of the total mass are independent of the distance.