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Fig. 4


Average off nucleus spectra of the CO(2–1) line obtained with the IRAM 30 m telescope on 23.78–24.85 January 2018. Left panel: 12.1′′ tail-ward (Δ RA > 0), right panel: 7.9′′ sun-ward. Scales are as in Fig. 3. The simulated profiles with QCO = 5 × 1028 molec s−1 in a 0–60° cone at vexp = 0.56 km s−1 and QCO = 5.5 × 1028 molec s−1 in a 60–120° cone at vexp = 0.50 km s−1 are superimposed in green dotted line.

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