Longitudinal profile of the northern jet emission at 8.4 GHz, 8.0 μm and 0.5–2.0 keV. Flux densities were measured in rectangles 4'' wide and 1 2 long along the jet axis for the infrared and radio. The 8.0 μm emission was taken from the nonstellar image (Figure 1). X-ray flux densities were measured in rectangles 4'' wide and 2'' long. We removed the X-ray emission from hot ambient gas, determined in similar rectangles adjacent to the jet. The regions that will be used to extract spectra are marked at the top of the plot.