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Table 1

Main observational parameters.

Parameter 12CO 13CO Continuum

Frequency 345.8 GHz 330.6 GHz 332.0 GHza
Bandwidth 469 MHz 469 MHz 2 GHz
Native channel width 122 kHz 122 kHz 15625 kHz
Primary beam 18.2′′ 19.0′′ 18.9′′
Synthesized beam
Beam position angle 87.5° 87.8° 90.0°
1σ rmsb ~21 mJy/beam km s -1 ~23 mJy/beam km s -1 ~0.078 mJy/beam



The mean frequency was calculated assuming a S(ν) ν-3 emission spectrum which accurately describes the ISM SED slope in the 2 GHz spectral window.


The rms presented here report 1σ rms of the integrated maps shown in Fig. 1.

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