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Fig. 18

image

Reconstructed images of the CO shells using the non-iterative method. The images correspond to slices along 8 horizontal planes parallel to the line-of-sight (X-axis runs from E to W and Y-axis along l.o.s.). The slices are spaced by 42′′; the star position corresponds to plane 0. Image sizes are 336′′ × 336′′. The approaching and receding halves of the envelope are down and up, respectively. Intensity scales are identical for all images (blue= dim, yellow= bright). The areas where reconstruction was not possible, due to velocity degeneracy or to too weak signals, are in black. The yellow circles mark the intersection with the planes of a sphere of radius 118′′.

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