Azimuthally averaged brightness profile of the radio emission in RXCJ1347 at 614 MHz. The profile is calculated in concentric annuli, as shown in the inset panel. The horizontal dashed-dotted line indicates the 3σ_614   MHz noise level of the radio image. In our analysis we considered all data points above the 3σ_614   MHz noise level. The black line indicates the best-fit profile described by an exponential law (dashed line, Eq. (3)) representing the mini-halo emission, and by a central Gaussian profile (dotted line, Eq. (2)) representing the central point source.