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Table 2

Emission lines of NH2CHO ν12 = 1.

Transition Rest Eu Sij Observed Observed Modelled
JKa, Kc freq. (MHz) (K) freq. (MHz) TMB (K) TMB (K)
41,4–31,3 81 682.74 428.3 3.75 1 ... ...
40,4–30,3 84 481.51 425.7 4.00 2 ... ...
42,3–32,2 84 741.66 437.4 3.00 3 ... ...
43,2–33,1 84 821.21 452.1 1.75 84 822.6 0.011 0.005
43,1–33,0 84 823.16 452.1 1.75 4 ... ...
42,2–32,1 85 021.46 437.5 3.00 85 022.0 0.024 0.011
41,3–31,2 87 728.81 429.0 3.75 87 728.9 0.043 0.015
51,5–41,4 102 051.89 433.2 4.80 102 052.0 0.025 0.031
50,5–40,4 105 392.40 430.7 5.00 105 393.0 0.044 0.036
52,4–42,3 105 890.63 442.5 4.20 105 891.0 0.044 0.027
54,2–44,1 106 023.11 477.7 1.80 106 023.0 0.037 0.017
54,1–44,0 106 023.13 477.7 1.80 4 ... ...
53,3–43,2 106 049.20 457.2 3.20 106 050.0 0.019 0.017
53,2–43,1 106 056.02 457.2 3.20 106 056.5 0.025 0.019
52,3–42,2 106 448.39 442.6 4.20 106 449.5 0.037 0.028
51,4–41,3 109 604.53 434.3 4.80 5 ... ...
61,5–51,4 131 440.80 440.6 5.83 131 441.91 0.091 0.070
70,7–60,6 146 786.16 443.8 6.99 146 785.87 0.18 0.10
72,6–62,5 148 110.98 455.7 6.43 8 ... ...
76,1–66,0 148 436.70 549.6 1.86 9 ... ...
76,2–66,1 148 436.70 549.6 1.86 4 ... ...
75,3–65,2 148 447.58 517.3 3.43 10 ... ...
75,2–65,1 148 447.58 517.3 3.43 4 ... ...
74,4–64,3 148 479.19 491.0 4.71 148 478.810 0.15 0.091
74,3–64,2 148 479.57 491.0 4.71 4 ... ...
73,5–63,4 148 546.28 470.4 5.71 11 ... ...
73,4–63,3 148 587.08 470.4 5.71 12 ... ...
72,5–62,4 149 649.30 455.9 6.43 149 649.7 0.13 0.091
71,6–61,5 153 227.92 447.9 6.85 153 226.811 0.25 0.070
81,8–71,7 162 945.38 453.7 7.87 162 945.7 0.12 0.13
80,8–70,7 167 233.53 451.9 7.98 167 233.0 0.16 0.15
82,7–72,6 169 172.83 463.8 7.50 10 ... ...
87,1–77,0 169 649.26 595.8 1.88 169 649.7 0.12 0.019
87,2–77,1 169 649.26 595.8 1.88 4 ... ...
86,2–76,1 169 654.15 557.7 3.50 169 653.6 0.14 0.051
86,3–76,2 169 654.15 557.7 3.50 4 ... ...
85,4–75,3 169 673.92 525.5 4.88 169 674.613 0.30 0.092
85,3–75,2 169 673.93 525.5 4.88 4 ... ...
84,5–74,4 169 723.79 499.1 6.00 14 ... ...
84,4–74,3 169 724.82 499.1 6.00 4 ... ...
83,6–73,5 169 816.46 478.6 6.87 169 816.6 0.23 0.10
83,5–73,4 169 897.86 478.6 6.87 15 ... ...
82,6–72,5 171 448.53 464.1 7.50 171 449.3 0.19 0.13
81,7–71,6 174 955.20 456.3 7.87 174 955.816 0.31 0.15
101,10–91,9 203 325.94 472.3 9.89 203 325.1 0.16 0.22
100,10–90,9 207 598.30 470.8 9.97 17 ... ...
102,9–92,8 211 176.58 483.1 9.60 211 177.6 0.14 0.21
108,2–98,1 212 081.60 659.1 3.60 10 ... ...
108,3–98,2 212 081.60 659.1 3.60 4 ... ...
107,3–97,2 212 085.17 615.1 5.10 212 087.610 0.12 0.065
107,4–97,3 212 085.17 615.1 5.10 4 ... ...
109,2–99,1 212 088.01 708.8 1.90 4 ... ...
109,1–99,0 212 088.01 708.8 1.90 4 ... ...
106,5–96,4 212 104.28 577.1 6.40 212 105.118 0.28 0.12
106,4–96,3 212 104.28 577.1 6.40 4 ... ...
105,6–95,5 212 151.01 544.8 7.50 212 152.619 0.45 0.19
105,5–95,4 212 151.06 544.8 7.50 4 ... ...
104,7–94,6 212 253.57 518.5 8.40 20 ... ...
104,6–94,5 212 258.90 518.5 8.40 4 ... ...
103,8–93,7 212 395.88 498.0 9.10 212 396.3 0.22 0.17
103,7–93,6 212 649.64 498.0 9.10 212 647.621 0.42 0.17
102,8–92,7 215 449.20 483.7 9.60 215 450.022 0.25 0.21
101,9–91,8 218 181.67 476.2 9.89 218 182.6 0.26 0.23
111,11–101,10 223 445.71 483.0 10.9 223 446.323 0.42 0.26
110,11–100,10 227 532.36 481.8 11.0 227 533.724 0.72 0.27
112,10–102,9 232 109.57 494.3 10.6 232 110.07 0.62 0.24
118,3–108,2 233 299.54 670.3 5.18 233 300.125 0.32 0.048
118,4–108,3 233 299.54 670.3 5.18 4 ... ...
119,2–109,1 233 302.95 720.0 3.64 233 304.026 0.24 0.022
119,3–109,2 233 302.95 720.0 3.64 4 ... ...
117,4–107,3 233 308.80 626.3 6.55 233 310.211 0.33 0.091
117,5–107,4 233 308.80 626.3 6.55 4 ... ...
1110,1–1010,0 233 315.20 775.5 1.91 233 315.211 0.21 0.007
1110,1–1010,0 233 315.20 775.5 1.91 4 ... ...
116,6–106,5 233 338.17 588.3 7.73 233 340.219 0.19 0.15
116,5–106,4 233 338.17 588.3 7.73 4 ... ...
115,7–105,6 233 403.69 556.0 8.73 233 395.227 0.62 0.23
115,6–105,5 233 403.82 556.0 8.73 4 ... ...
114,8–104,7 233 541.37 529.7 9.55 233 545.328 0.53 0.16
114,7–104,6 233 552.01 529.7 9.55 233 552.710 0.40 0.16
113,9–103,8 233 700.50 509.2 10.2 233 701.4 0.52 0.20
113,8–103,7 234 110.23 509.2 10.2 234 112.311 0.61 0.21
112,9–102,8 237 623.00 495.2 10.6 15 ... ...
111,10–101,9 239 653.46 487.7 10.9 239 655.029 0.41 0.28
121,12–111,11 243 518.12 494.7 11.9 30 ... ...
120,12–110,11 247 327.32 493.6 12.0 247 327.7 0.40 0.30
122,11–112,10 252 990.99 506.4 11.7 252 991.210 0.72 0.27
129,3–119,2 254 519.63 732.2 5.25 31 ... ...
129,4–119,3 254 519.63 732.2 5.25 4 ... ...
128,4–118,3 254 520.26 682.5 6.67 4 ... ...
128,5–118,4 254 520.26 682.5 6.67 4 ... ...
1210,2–1110,1 254 529.91 787.7 3.67 10 ... ...
1210,3–1110,2 254 529.91 787.7 3.67 4 ... ...
127,5–117,4 254 536.75 638.6 7.92 32 ... ...
127,6–117,5 254 536.75 638.6 7.92 4 ... ...
127,5–117,4 254 536.75 638.6 7.92 32 ... ...
1211,1–1111,0 254 548.28 849.1 1.92 32 ... ...
1211,2–1111,1 254 548.28 849.1 1.92 4 ... ...
126,7–116,6 254 578.76 600.5 9.00 32 ... ...
126,6–116,5 254 578.76 600.5 9.00 4 ... ...
125,8–115,7 254 667.08 568.3 9.92 6 ... ...
125,7–115,6 254 667.39 568.3 9.92 4 ... ...
124,9–114,8 254 845.87 541.9 10.7 33 ... ...
124,8–114,7 254 865.75 541.9 10.7 254 866.2 0.28 0.18
123,10–113,9 255 010.36 521.4 11.2 255 011.4 0.30 0.23
123,9–113,8 255 642.37 521.4 11.2 34 ... ...
122,10–112,9 259 878.29 507.6 11.7 28 ... ...
121,11–111,10 261 010.66 500.3 11.9 261 010.210 0.54 0.31
131,13–121,12 263 544.02 507.3 12.9 35 ... ...
130,13–120,12 267 010.81 506.4 12.9 267 012.1 0.40 0.33
132,12–122,11 273 816.96 519.5 12.7 273 817.1 0.48 0.30
139,4–129,3 275 738.22 745.4 6.77 15 ... ...
139,5–129,4 275 738.22 745.4 6.77 4 ... ...
138,5–128,4 275 744.01 695.7 8.08 15 ... ...
138,6–128,5 275 744.01 695.7 8.08 4 ... ...
1310,3–1210,2 275 745.71 801.0 5.31 15 ... ...
1310,4–1210,3 275 745.71 801.0 5.31 4 ... ...
1311,2–1211,1 275 762.94 862.3 3.69 36 ... ...
1311,3–1211,2 275 762.94 862.3 3.69 4 ... ...
137,6–127,5 275 769.39 651.8 9.23 37 ... ...
137,7–127,6 275 769.39 651.8 9.23 4 ... ...
1312,1–1212,0 275 787.77 929.4 1.92 37 ... ...
1312,2–1212,1 275 787.77 929.4 1.92 4 ... ...
136,8–126,7 275 826.65 613.7 10.2 38 ... ..
136,7–126,6 275 826.66 613.7 10.2 4 ... ...
135,9–125,8 275 942.13 581.5 11.1 275 942.1 0.27 0.29
135,8–125,7 275 942.78 581.5 11.1 4 ... ...
134,10–124,9 276 167.82 555.2 11.8 39 ... ...
134,9–124,8 276 203.04 555.2 11.8 40 ... ...
133,11–123,10 276 320.81 534.7 12.3 41 ... ...
133,10–123,9 277 258.54 534.8 12.3 277 259.9 0.34 0.26

Notes. Emission lines of NH2CHO ν12 = 1 present in the frequency range of the 30-m Orion KL survey that are not strongly blended with other lines from other species. Column 1 gives the line transition; Col. 2: calculated rest frequencies; Col. 3: energy of the upper level; Col. 4: line strength; Col. 5: observed frequencies assuming a vLSR of 7.5 km s-1; Col. 6: observed peak line temperature (see text, Sect. 4.3); Col. 7: modelled peak line temperature. Because of either their weakness or heavy blending, it is not possible to fit Gaussian profiles for these lines, so we cannot give an integrated intensity. Nevertheless, we assumed a line width of  ≃4–7 km s-1 taking into account the channels involved in the considered features for the vibrationally excited formamide and the good agreement between model and observations (see text, Sect. 4.3).

(1)

Blended with t-CH3CH2OH.

(2)

Blended with c-C2H4O.

(3)

Blended with CH3OH and 30SiO.

(4)

Blended with the last one.

(5)

Blended with HC3N ν7 = 1.

(6)

Blended with CH3CH2CN b type.

(7)

Blended with CHCH2CN.

(8)

Blended with CH3OH.

(9)

Blended with (CH3)2CO.

(10)

Blended with U line.

(11)

Blended with CH3OCOH.

(12)

Blended with CH3OCOH and 13CH3OCOH.

(13)

Blended with 13CH3CH2CN.

(14)

Blended with O13CS.

(15)

Blended with CH3OCH3.

(16)

Noisy spectra due to the proximity of the atmospheric water line.

(17)

Blended with CH2CHCN.

(18)

Blended with H13CCCN ν7 = 1 − .

(19)

Blended with CH3CHO.

(20)

Blended with CH3CHO and NH2CHO.

(21)

Blended with (CH3)2CO and HDCS.

(22)

Blended with CH3CH2CN out of plane torsion.

(23)

Blended with the blue wing of a SO2 line.

(24)

Blended with the wings of some molecules such as CH3OCOH and CH3CH2CN.

(25)

Blended with 34SO2.

(26)

Blended with CH3O13COH.

(27)

Blended with CH3OCOH and CH3CH2CN in the plane torsion.

(28)

Blended with CH3CH2CN in the plane torsion.

(29)

Blended with CH3OCOD.

(30)

Blended with NH2CHO and SO.

(31)

Blended with 33SO2.

(32)

Blended with SO.

(33)

Blended with CH3OCOH and 13CH3OH.

(34)

Blended with H13CCCN and 33SO.

(35)

Blended with NH2CHO and SO2.

(36)

Blended with CH313CN.

(36)

Blended with CH3CN and CH313CN.

(38)

Blended with CH3CN.

(39)

Blended with NH2CHO.

(40)

Blended with CH3CN ν8 = 1.

(41)

Blended with CH3CN ν8 = 1 and CH2CHCN ν11 = 1.

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