Observations versus model images from our best fit with galario (before and after convolution) and the residuals. The contours of the residual map are [−10σ, −5σ, 5σ, 10σ], where negative values are dashed contours and positive values solid contours. The green contour in the residual map shows the area that encloses 80% of the peak of the emission from the observations as a reference.