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Table 1

Line parameters of CO and isotopologues toward the IRS 1 and IF positions – IRAM and HIFI data.

IRS 1 IF (–45, –60)

Molecule Transition Rest frequency Eup υLSR FWHM Tmb υLSR FWHM Tmb
(MHz) (K) (km s-1) (km s-1) (K) (km s-1) (km s-1) (K)

CO 10 115 271.20 5.53 −5.07 ± 0.08 10.82 ± 0.20 31.91 ± 0.55 −7.32 ± 0.19 2.66 ± 0.07 5.80 ± 0.08
CO 21 230 538.00 16.60 −5.0 ± 0.1 11.40 ± 0.22 31.69 ± 0.65 −7.77 ± 0.01 3.20 ± 0.02 7.62 ± 0.06
CO 98 1 036 912.39 248.88 −6.60 ± 0.02 8.32 ± 0.07 27.62 ± 0.37 7.80 ± 0.07 2.50 ± 0.20 1.20 ± 0.20
13CO 10 110 201.35 5.29 −6.87 ± 0.03 4.09 ± 0.08 16.52 ± 0.34 −8.12 ± 0.37 1.34 ± 0.70 0.84 ± 0.26
13CO 109 1 101 349.60 290.79 −6.98 ± 0.03 3.80 ± 0.07 8.56 ± 0.03 ... ... <3 rms
C18O 10 109 782.17 5.27 −5.71 ± 0.14 2.37 ± 0.39 2.88 ± 0.37 ... ... <3 rms
C18O 98 987 560.20 237.02 −6.94 ± 0.06 3.26 ± 0.04 1.31 ± 0.06 ... ... <3 rms

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