Left:NIKA2 tSZ surface brightness map at 150 GHz after the subtraction of the submillimeter point source contaminant. The best circular sector, which encloses the over-pressure region within PSZ2 G144.83+25.11, is darkened and delimited by the white lines. Right: tSZ surface brightness profiles computed inside (green) and outside (blue) the dark sector shown in the left panel. The inner and outer radii of the mask are defined by the region where the two profiles are significantly different. The reference profile computed in the north-east quarter of the NIKA2 150 GHz map is shown in black and the median profile computed on the whole map is represented in red.