National Radio
Astronomy Observatory

5.3.8 Parameter modelimage

The modelimage parameter specifies the name(s) of one or more input starting image(s) to use to calculate the first residual before cleaning. These are used in addition to any image with a name defaulting from the imagename root (e.g. on a restart). The output model will contain this model plus clean components found during deconvolution.

If the units of the image are Jy/pixel, then this is treated as a model image.

If the units of the image are Jy/beam or Jy per solid angle, then this is treated as a “single-dish” image and rescaled by the resolution (in the ’beam’ image header keyword). Inclusion of the SD image here is superior to feathering it in later. See § 5.5 for more information on feathering.

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