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Fig. 3


IRAS 16293−2422 c-C3 H2 5–4 and C2H 4–3 J = 9/2–7/2 spectra taken at five positions, indicated by the green boxes in the intensity integrated map presented in the center right panel, while the green circle on the bottom left panel indicates the beam of the combined 12 m and ACA observations. The anti-correlation of both molecules is seen at all positions. The region within a radius of 2′′ from the position of source A is contaminated by other molecular species, and is masked out for these maps.

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