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Fig. 1
Moment-zero maps for C2H (N = 3– 2, J = 7∕2–5∕2, F = 4–3 and F = 3–2) in the nine Lupus sources obtained integrating the emission over the channels where signal was detected. No Keplerian masking was used to produce such maps. White contours show the continuum emission at 3σ, 20σ, and at 20σ intervals.
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