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Table 4

Gaussian fits for molecular transitions of N-bearing species, CO, HCO+, SiO and HDO.

Molecule Frequency Transition Position Ipeak Iint FWHM vsource
(GHz) (″,″) (Jy beam−1) (Jy beam−1 km s−1) (km s−1) (km s−1)
N-bearing species

CH3CN 330.7603 187−177 (−0.22, 0.50) 6.1 46.2 7.4 10.0
330.9126 185−175 (−0.18, 0.47) 7.8 56.2 7.1 9.5
330.9698 184−174 (−0.22, 0.51) 11.4 82.3 7.5 9.2
331.0143 183−173 (−0.24, 0.55) 10.0 72.6 7.2 9.2
331.0461 182−172 (−0.35, 0.57) 7.5 55.3 7.4 9.5
349.3933 193−183 (−0.20, 0.56) 11.7 88.8 8.1 9.7
349.4268 192−182 (−0.20, 0.60) 9.8 73.0 7.7 10.1

HNCO 329.6644 150,15−140,14 (−0.14, 0.42) 8.8 66.9 8.3 9.2
350.3330 161,16−151,15 (−0.05, 0.35) 7.6 61.4 8.4 10.2

HCN (a) 354.5055 4 – 3 (0.17, 0.52) 17.8 127.2 6.3 14.2

HC15N 344.2001 4−3 (−0.19, 0.59) 10.2 78.7 8.6 9.9

HC3N 336.5201 37−36 (−0.14, 0.53) 5.6 44.2 7.9 10.7
345.6090 38−37 (−0.15, 0.47) 6.5 51.8 8.6 10.1
354.6975 39−38 (−0.18, 0.39) 6.7 53.8 8.7 10.6

CN 340.2478 30,3.5 – 20,2.5 (−0.49, 1.41) 1.4 11.3 9.8 9.4

SiO and HDO

SiO 347.3306 80−70 (−0.07, 0.47) 2.8 33.6 11.7 11.2

HDO (b) 335.39550 33,1−42,2 (−0.43, 0.92) 1.6 11.5 2.1 10.8

CO and HCO+

CO (a) 345.7960 3−2 (0.35, 0.68) 18.2 156.0 10.1 11.6

13CO 330.5880 3−2 (0.57, −0.12) 10.7 51.9 4.5 10.6

C18O 329.3305 3−2 (−0.64, 0.37) 3.5 25.2 8.2 9.1

H13CO+ 346.9983 4 – 3 (−1.45, 0.50) 3.74 4.31 9.20

Notes. Uncertainties are as in Table 2. (a)For the HCN and CO lines, only the brightest, redshifted components are listed. (b) HDO emission is extended, so the peak position is of the maximum flux position, not derived from a 2D Gaussian fit.

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