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Table 3

Parameters for the lines detected in the sources from circular Gaussian fits to the integrated line maps.

IRAS2A IRAS4A-NW
No. Molecule Transition Fluxa Offsetb Sizec Fluxa Offsetb Sizec
(Jy km s-1) (′′) (′′) (Jy km s-1) (′′) (′′)
1 CH3OCH3 33,0 – 22,1 EE 0.47d  −0.02; −0.002 0.70 ± 0.09 0.44d  −0.21; −0.04 0.70 ± 0.09
2 CH3OCH3 33,0 – 22,1 AA  −d  −; −   −  −d  −; −   −
3 CH3OCH3 33,0 – 22,1 AE 0.81e  −0.16; −0.32 1.45 ± 0.10 0.26e  −0.14; −0.03 0.57 ± 0.12
4 CH3OCH3 33,1 – 22,1 EE  −e  −; −   −  −e  −; −   −
5 HO 31,3 – 22,0 0.98  −0.07; −0.12 0.83 ± 0.05 0.27  −0.18; −0.07 0.61 ± 0.12
6 CH3OCH3 33,1 – 22,1 EA 0.30  −0.35; −0.52 1.23 ± 0.22 0.06  −0.25; −0.10 0.44 ± 0.26
7 C2H5CN 232,22 – 222,21 <0.04f  −; −   − 0.27  −0.20; −0.05 0.37 ± 0.11
8 SO2 120,12 – 111,11 2.73  −0.07; +0.003 1.00 ± 0.02 1.22  −0.22; −0.01 0.88 ± 0.05

Notes. Molecule specific data are tabulated in Table A.1 and the integration interval (in km s-1) in Table A.2 in the appendix.

(a)

Flux from fitting circular Gaussian to integrated line emission in (u,v) plane. The typical statistical error is 0.01 Jy km s-1, but the calibration uncertainty is roughly 20%.

(b)

Offset from position of continuum fitted elliptical Gaussian. Used in Fig. 3 to plot the positions of the lines.

(c)

FWHM from Gaussian fit in the (u,v) plane.

(d,e)

Blended pair, values given for the combined integrated emission.

(f)

Upper limit estimate.

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