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Table A.1.

Observed rotational transitions of S 1 (MgCCCN).

Nu(a) Ju(a) Nl(a) Jl(a) Obs.Freq. (b) Unc. (c) O-C (d) Int. (e)
12 11.5 11 10.5 33138.673 0.150 0.075 0.169
12 12.5 11 11.5 33143.008 0.150 0.057
13 12.5 12 11.5 35900.260 0.080 0.030 0.163
13 13.5 12 12.5 35904.683 0.080 0.100
14 13.5 13 12.5 38661.866 0.150 0.027 0.245
14 14.5 13 13.5 38666.200 0.150 0.008
15 14.5 14 13.5 41423.336 0.080 −0.086 0.257
15 15.5 14 14.5 41427.711 0.080 −0.064
16 15.5 15 14.5 44185.057 0.150 0.079 0.259
16 16.5 15 15.5 44189.232 0.150 −0.099
17 16.5 16 15.5 46946.648 0.150 0.143 0.275
17 17.5 16 16.5 46950.712 0.150 −0.146
18 17.5 17 16.5 49708.020 0.150 0.020 0.339
18 18.5 17 17.5 49712.338 0.150 −0.015
26 25.5 25 24.5 71798.763 0.150 0.131 0.329
26 26.5 25 25.5 71802.981 0.150 −0.003
27 26.5 26 25.5 74559.941 0.300 0.175 (f) 0.340
27 27.5 26 26.5 74564.197 0.150 0.078
28 27.5 27 26.5 77320.562 0.200 −0.290 (g)
28 28.5 27 27.5 77324.925 0.200 −0.290 (g)
29 28.5 28 27.5 [80081.886] [0.032] n.i. (h)
29 29.5 28 28.5 80086.523 0.500 0.284 (i)
30 29.5 29 28.5 82842.847 0.150 −0.020 0.255
30 30.5 29 29.5 82847.014 0.150 −0.207
31 30.5 30 29.5 85603.749 0.150 −0.046 0.210
31 31.5 30 30.5 85608.518 0.150 0.370
32 31.5 31 30.5 88364.669 0.150 0.004 0.242
32 32.5 31 31.5 88369.040 0.150 0.022
33 32.5 32 31.5 91125.390 0.150 −0.087 0.279
33 33.5 32 32.5 91129.844 0.150 0.014
34 33.5 33 32.5 [93886.229] [0.042] n.i. (j) 0.279
34 34.5 33 33.5 93890.277 0.200 −0.305
35 34.5 34 33.5 96646.999 0.150 0.080 0.227
35 35.5 34 34.5 96651.440 0.150 0.168
36 35.5 35 34.5 99407.472 0.200 −0.073 0.166
36 36.5 35 35.5 99411.815 0.200 −0.083
37 36.5 36 35.5 102168.400 0.500 0.295
37 37.5 36 36.5 [102172.458] [0.055] n.i. (k)
38 37.5 37 36.5 104928.720 0.500 0.122 (l) 0.133
38 38.5 37 37.5 104932.450 0.500 −0.501 (l)
39 38.5 38 37.5 107688.500 0.500 −0.522 (l) 0.103
39 39.5 38 38.5 107693.827 0.500 0.452 (l)
40 39.5 39 38.5 110449.410 0.500 0.035 (l) 0.131
40 40.5 39 39.5 110453.977 0.500 0.249 (l)

Notes.

(a)

Quantum numbers N and J of the rotational transition. The subindex u means upper level and l lower level.

(b)

Observed frequency in MHz. Square brackets indicate a calculated frequency.

(c)

Uncertainty assigned to the measured frequency in MHz. Square brackets indicate a calculated uncertainty from the fit.

(d)

Observed frequency minus calculated frequency from the fit in MHz. If n.i. the line is not included in the fit.

(e)

Main beam temperature integrated over the LSR velocity, in K km s−1. The uncertainties are below 15%.

(f)

Line marginally blended with HC5N.

(g)

Line blended with narrow U feature.

(h)

Line fully blended with HC7N.

(i)

Line partially blended with HC7N.

(j)

Line blended with C6H in ν11 mode.

(k)

Line fully blended with H2C6.

(l)

Weak feature.

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