Fig. C.1.
Example fitting of a clearly resolved source 0.2212+0.444 in the 6 cm image of BB335B. Left panel: CLEANED image (the observation), the mid panel the best fit model convolved with the CLEAN beam, and the right panel the residual that is image-model. The white cross marks the centre of each panel, that is the position guess obtained from PyBDSM. This particular fit was chosen because it shows that the position found by PyBDSM may be off when PyBDSM’s Gaussian fitting finds the peak of one of the two beam-features of a weak resolved shell. However, since the position is allowed to vary, this taken into account in the fitting, as seen here where the fitted position is a little to the right of the white cross.
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