Same as Fig. B.1 for IRAS4A. The contours show levels of −3σ (dashed), 5σ, and 10σ and then usesteps of 20σ from 20σ on. IRAS4B is detected to the southwest in the 94 GHz map, outside the area shown here, so that the structure of IRAS4A is well distinguished in the figure.
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