Examples of jet intensity profile along the azimuthal direction. Left: two of our VLBA maps in polar coordinates, convolved with circular beams. The black solid and gray dashed contours represent the 24 GHz and 15 GHz images, respectively. The 15 GHz image has been rotated 180° to ease the presentation. Right: three concentric jet intensity profiles obtained at different angular distances z from the origin of the jet (represented by different colors). The solid and dotted lines denote the intensities at 24 GHz and 15 GHz, respectively. All profiles have been normalized to the unit maximum.