Longitudinal magnetic field images of the X-ray jet shown in Fig. 13. The field-of-view corresponds to the area below the dotted lines in the X-ray images and has a size of 43″ × 43″. The magnetograms are scaled from  − 70 Mx cm^-2to  + 70 Mx cm^-2. The black circles indicate the magnetic cancellation sites. The white arrow points at an emerging positive magnetic feature. The black dotted lines outline the region where the magnetic flux lightcurves were extracted from. An animated version is available online, cf. Fig. A.3.