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Table 1

Main observational parameters.

Parameter 3 mm 1 mm Herschel column density

Frequency 87.43a GHz 239.5 GHz
Bandwidth 3600 MHz 640 MHz
System temperature ~120 K ~300 K
Primary beam 59′′ 21′′
Synthesized beam 25′′
3σ rms 0.11 − 3.8 mJy/beam ~150 mJy/beam ~4.5 × 1021 cm-2

Notes.

(a)

The mean frequency was calculated assuming a S(ν) ν-2 emission spectrum accurately describing the ISM SED slope in the WIDEX band.

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