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Table 1

Parameters of the observational data.

NGC 1333-IRAS 2A (PdBI)
Frequency 145 GHz 165 GHz 225 GHz

Beam size (′′) 2.1 × 1.7 2.3 × 1.7 1.2 × 1.0
Beam PA (°) 25 110 22
rms(spectrum) (a) 2.6 3.5 2.9

NGC 1333-IRAS 4A (PdBI)

Frequency 145 GHz 165 GHz 225 GHz

Beam size (′′) 2.2 × 1.7 2.4 × 1.8 1.1 × 0.8
Beam PA (°) 25 114 14
rms(spectrum) (a) 3.3 4.0 4.8

HH212 (ALMA)

335 GHz 338 GHz 349 GHz

Beam size (′′) 0.15 × 0.12 0.52 × 0.34 0.41 × 0.33
Beam PA (°) −88 −63 −63
rms(spectrum) (b) 1 56 56

Notes. (a) Units of mJy beam−1 channel−1 for a channel width of 1.95 MHz. (b)Units of mJy beam−1 channel−1 for a channel width of 0.87 km s−1 (335 GHz) and 1.0 km s−1 (at 338 and 349 GHz).

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