Fig. 6

The VLBI image of the Crab nebula (grey scale) overlaid with a VLA image (contours) of the same region obtained by Bietenholz et al. (2004). The VLBI image is obtained from the multi-scale CLEAN image by removing the contribution from the pulsar and restoring the resulting image with a 14 beam in order to match the resolution of the VLA image. Locations of the inner “wisps” agree well in the two images, despite potential complications due to the non-contemporary observing epochs and possible image artifacts in the VLBI image. See further discussion in the text.
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