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Table 1

Parameters of the observed lines.

Low spatial resolution High spatial resolution

Molecule Trans. Freq (MHz) Eup (K) S ij Beam PA (°) Beam PA (°)

NaCN 61,6–51,5 90 394.38 17.6 5.83237 3.′′9×2.′′7 89.9 0.′′8×0.′′6 39.2
NaCN 60,6–50,5 93 206.09 15.7 5.99388 4.′′3×2.′′7 72.1 0.′′6×0.′′6 15.2
NaCN 62,4–52,3 94 334.80 25.4 5.33293 4.′′3×2.6 72.4 0.′′6×0.′′6 40.4
NaCN 61,5–51,4 96 959.81 18.7 5.83223 3.′′9×2.′′6 92.7 0.′′8×0.′′7 20.0

NaCN 91,8–81,7 145 075.57 37.3 8.88452 1.′′4×1.′′1* 52.4
NaCN 102,8–92,7 158 616.77 51.2 9.59903 1.′′3×1.′′0* 65.1

NaCl 7−6 91 169.88261 17.5 7.0 0.′′8×0.′′6 38.8

CH3CN 63−53 110 364.35314 82.8 9.0 0.′′8×0.′′7 39.1
CH3CN 60−50 110 383.49871 18.5 6.0 0.′′8×0.′′7 38.9

Notes. High spatial resolution: short-spacing and ALMA compact data merged. Low spatial resolution: short-spacing and ALMA compact and extended data merged.

(*)

Only ALMA visibilities.

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