Top panel: compton-y parameter profile from Planck data (red points). The gray solid line and shaded area show the best-fit profile convolved with the instrument PSF. The data points are correlated and the associated errors correspond to the square root of the diagonal elements of the covariance matrix. Bottom panel: residual of the fit to the Planck data. The dashed and dash-dotted vertical lines represent R₅₀₀ and R₂₀₀, respectively.