Map of the CH3C2H 50 → 40 velocity dispersion clipped at the 5σ level. Primary beam correction and Briggs weighting (robustness parameter +2.0) has been applied. The restored beam (2.′′ 65 × 2.′′ 28, PA = 80°) is shown in the lower left corner of the image. The cross indicates the λ ≈ 3 mm radio continuum peak.
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