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Fig. 2


Spectra towards the three major cores from the broadband correlator unit data obtained from averaging the central 0.5′′ around the continuum emission peak. The spectral resolution in these bands is ~ 2.7 km s−1 or ~ 1.95 MHz. The molecule labels are given for the chemically rich core MMS1b. We note that the flux scale is smaller for MMS2a. Lines labeled with numbers are: (1) and (3) unidentified, (2) 33SO, (4) SO2, (5) 34SO2, (6) and (9) HNCO, (7) HCO and (8) CH2CO.

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