H-band major-axis surface brightness profile of ESO 243-49. The red circles are the data extracted from the HST image, while the black curve represents the best-fitting model, which in turn is built up of a spheroid or bulge (red dashed line), a bar (yellow dot-dashed line) and an edge-on disc (blue dotted line). The inset numbers are the Sérsic parameters of the bulge. The residual profile is shown in the next panel below, followed by the ellipticity and B₄ amplitude (discyness) profiles.