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Table 2

Gaussian fitting of blend-free lines and results of the population diagram analysis.

Molecule Transition Frequency Sline1 FWHM 2 T b 3 T ex 4 N 5 τ 6
[GHz] [Jy km s-1] [km s-1] [K] [K] [cm-2]
HCN J = 1−0 88.63 9 ± 1 140 ± 10 65 ± 7 8 ± 2 2.2 ± 0.5 × 1017 >10
J = 3−2 265.89 50 ± 5 150 ± 10 35 ± 4 >10
HNC J = 1−0 90.66 5.2 ± 0.7 110 ± 15 45 ± 6 10 ± 3 1.7 ± 0.5 × 1016 5.9
J = 3−2 271.98 38.5 ± 0.3 130 ± 10 30 ± 2 6.8
HCO+ J = 1−0 89.19 6.2 ± 0.4 110 ± 7 55 ± 3 6 ± 1 1.1 ± 0.2 × 1016 >10
J = 3−2 267.56 23.6 ± 2 150 ± 12 17 ± 2 6.6
CS J = 2−1 97.98 5 ± 0.5 116 ± 12 35 ± 4 15 ± 3 3.6 ± 0.8 × 1016 2.3
J = 6−5 293.91 32 ± 4 150 ± 16 19 ± 2 1.7
C34S J = 2−1 96.41 1 ± 0.3 100 ± 30 8 ± 3 16 ± 10 5 ± 3 × 1015 0.6
J = 6−5 289.21 10 ± 1 115 ± 15 8 ± 1 0.8
13CS J = 2−1 92.49 0.3 ± 0.2 90 ± 10 3 ± 2 22 ± 7 3 ± 1 × 1015 0.1
J = 5−4 231.22 1.6 ± 0.7 90 ± 40 3 ± 1 0.1
J = 6−5 277.45 3.3 ± 0.8 150 ± 40 2 ± 0.5 0.1
SiO J = 2−1 86.85 1.2 ± 0.3 90 ± 20 13 ± 3 9 ± 5 3 ± 1 × 1015 1.5
J = 5−4 217.10 4 ± 1 130 ± 30 5 ± 1 0.8
HC3N J = 10−9 90.98 4.0 ± 0.8 110 ± 20 34 ± 7 65 ± 4 1 ± 0.1 × 1017 0.5
J = 11−10 100.08 4.6 ± 0.6 110 ± 15 31 ± 4 0.4
J = 12−11 109.17 5.1 ± 0.8 120 ± 20 27 ± 4 0.4
J = 24−23 218.32 15.2 ± 2.5 150 ± 25 16 ± 3 0.2
J = 28−27 254.70 23.8 ± 2.2 150 ± 15 18 ± 2 0.3
J = 29−28 263.79 17.4 ± 2.2 135 ± 15 14 ± 2 0.2
J = 30−29 272.88 16.2 ± 1.9 135 ± 15 12 ± 1 0.2
J = 31−30 281.98 19.4 ± 2.0 150 ± 15 12 ± 1 0.2
J = 32−31 291.07 19.4 ± 1.7 150 ± 15 12 ± 1 0.2
HC3N, v7 = 1 J = 10−9, l = 1f 91.33 0.8 ± 0.2 90 ± 25 8 ± 2 98 ± 6 1.4 ± 0.1 × 1016 0.1
J = 11−10, l = 1f 100.47 1.3 ± 0.3 105 ± 30 9 ± 2 0.1
J = 12−11, l = 1f 109.60 1.2 ± 0.3 90 ± 30 8 ± 2 0.1
J = 24−23, l = 1f 219.17 7 ± 1.5 130 ± 30 9 ± 2 0.1
J = 28−27, l = 1f 255.70 10 ± 2 150 ± 25 8 ± 1 0.1
J = 29−28, l = 1f 264.82 9 ± 2 130 ± 30 7 ± 2 0.1
J = 31−30, l = 1f 283.07 11 ± 1 145 ± 10 7 ± 1 0.1
J = 32−31, l = 1f 292.20 10 ± 2 120 ± 20 7 ± 1 0.1
HC3N, v6 = 1 J = 10−9, l = 1e 91.13 0.50 ± 0.4 140 ± 100 3 ± 2 99 ± 21 8 ± 2 × 1017 ≪1
J = 11−10, l = 1e 100.24 0.4 ± 0.3 140 ± 100 2 ± 1 ≪1
J = 12−11, l = 1e 109.35 0.6 ± 0.2 120 ± 40 3 ± 1 ≪1
J = 29−28, l = 1e 264.22 5 ± 1 140 ± 30 4 ± 1 ≪1
HC3N, v7 = 2 J = 10−9, l = 2e 91.56 0.4 ± 0.2 70 ± 40 5 ± 3 139 ± 27 1.9 ± 0.4 × 1017 ≪1
J = 11−10, l = 2e 100.71 0.9 ± 0.3 105 ± 30 7 ± 2 ≪1
J = 12−11, l = 2e 109.87 1.1 ± 0.3 120 ± 35 6 ± 2 ≪1
J = 28−27, l = 2e 256.31 13.1 ± 2.5 170 ± 30 8 ± 2 0.1
J = 32−31, l = 2e 292.91 11.2 ± 2.6 170 ± 40 6 ± 1 ≪1
HC5N J = 32−31 85.20 0.6 ± 0.5 150 ± 100 5 ± 4 36 ± 22 1.2 ± 0.7 × 1016 0.1
J = 33−32 87.86 0.6 ± 0.2 130 ± 45 4 ± 1 0.1
J = 34−33 90.52 0.2 ± 0.1 100 ± 50 2 ± 1 ≪1
J = 37−36 98.51 0.6 ± 0.3 130 ± 65 4 ± 2 0.1
J = 38−37 101.17 0.4 ± 0.1 90 ± 30 4 ± 1 0.1
J = 39−38 103.83 0.2 ± 0.1 90 ± 50 2 ± 1 ≪1
J = 42−41 111.82 0.4 ± 0.1 90 ± 35 3 ± 1 0.1

Notes.

(1)

Flux density integrated over the fitted Gaussian profile;

(2)

Gaussian line width;

(3)

brightness temperature assuming a source size of 0.̋4;

(4)

excitation temperature from population diagram fit;

(5)

column density from the population diagram fit;

(6)

opacity of the transition.

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