ALMA spectrum (in black) towards the ethylene glycol peak. The synthetic spectrum is overlaid in red. The parameters used for the synthetic spectrum are: vLSR = 7.6 km s-1, Δv1/2 = 2.3 km s-1, Ng’ = 4.6 × 1015cm-2, T = 145 K. Each box corresponds to a 120 MHz bandwidth and the ordinates are the intensities in K. The frequencies (in MHz) increase from left to right and from bottom to top. The transitions listed in Table 1 are indicated on the plots by “EG”.
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© ESO, 2015