Fig. 4
Intensity profiles along the PWN, at 2 GHz (dashed line) and 0.5−10 keV (solid line), as a function of the distance from PSR. The radio and X-ray profiles peak at different positions, separated by 22′′. This can be explained by the cooling of the emitting particles. The shape of the PWN at both wavebands and its alignment are in favor of a high pulsar velocity (>1000 km s-1).
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