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Table 7

Detected lines of 18O-HCOOCH3.

Species Transition Rest freq. Eu Sij Observed Observed Modeled
JKa, Kc (MHz) (K) freq. (MHz) TMB (K) TMB (K)
A-HCO18OCH3 72,6-62,5 83327.49 18.7 6.40 83327.5 0.012 0.013
E-HC18OOCH3 81,8-71,7 85805.17 19.4 7.86 85802.41 0.030 0.016
A-HC18OOCH3 81,8-71,7 85807.01 19.4 7.86 85807.4 0.033 0.016
E-HCO18OCH3 82,7-72,6 94754.73 23.2 7.49 94755.5 0.037 0.017
E-HC18OOCH3 83,5-73,4 95996.47 26.4 6.90 95996.5 0.025 0.016
E-HC18OOCH3 81,7-71,6 96466.39 21.8 7.79 96466.5 0.025 0.017
A-HCO18OCH3 83,6-73,5 97429.39 26.7 6.87 97430.01 0.031 0.016
E-HCO18OCH3 84,5-74,4 97569.09 31.2 5.76 97569.5 0.028 0.013
E-HCO18OCH3 90,9-80,8 99039.16 24.5 8.86 99040.0 0.025 0.022
A-HCO18OCH3 90,9-80,8 99040.86 24.5 8.86 2 ... ...
A-HCO18OCH3 82,6-72,5 102414.82 24.3 7.53 102415.0 0.029 0.019
E-HCO18OCH3 92,8-82,7 106025.11 28.3 8.52 106025.5 0.025 0.023
E-HC18OOCH3 95,4-85,3 106251.00 41.8 6.24 106251.0 0.037 0.014
A-HC18OOCH3 95,4-85,3 106265.60 41.8 6.24 106265.4 0.050 0.013
E-HC18OOCH3 93,7-83,6 106295.64 31.6 8.01 106295.5 0.044 0.020
A-HC18OOCH3 93,7-83,6 106302.47 31.4 8.01 106302.5 0.025 0.021
E-HC18OOCH3 94,6-84,5 106576.35 36.0 6.86 106576.5 0.019 0.017
E-HC18OOCH3 91,8-81,7 107284.86 27.0 8.75 107284.4 0.038 0.025
A-HC18OOCH3 91,8-81,7 107292.37 27.0 8.75 107292.5 0.038 0.023
E-HC18OOCH3 93,6-83,5 108822.96 31.9 8.01 108823.5 0.038 0.023
E-HCO18OCH3 101,10-91,9 109037.62 29.8 9.85 109037.5 0.038 0.027
A-HCO18OCH3 101,10-91,9 109039.39 29.8 9.85 109040.61 0.057 0.027
E-HCO18OCH3 100,10-90,9 109365.53 29.8 9.85 109365.51 0.032 0.028
E-HCO18OCH3 91,8-81,7 109988.47 27.7 8.71 109988.5 0.038 0.026
A-HC18OOCH3 92,7-82,6 111644.35 29.0 8.58 111644.5 0.025 0.024
E-HC18OOCH3 102,9-92,8 114108.78 33.1 9.56 114108.5 0.025 0.026
E-HCO18OCH3 120,12-110,11 130114.40 42.7 11.9 130115.11 0.012 0.038
A-HCO18OCH3 120,12-110,11 130115.91 41.7 11.9 2 ... ...
E-HC18OOCH3 122,11-112,10 135472.80 45.6 11.6 135472.7 0.026 0.036
E-HC18OOCH3 130,13-120,12 137256.72 48.6 12.9 137256.3 0.080 0.044
A-HC18OOCH3 130,13-120,12 137258.10 47.4 12.9 2 ... 0.044
E-HCO18OCH3 113,8-103,7 139979.02 45.1 10.2 139978.6 0.046 0.031
A-HCO18OCH3 113,8-103,7 139995.37 45.1 10.2 139995.7 0.026 0.031
E-HCO18OCH3 131,13-121,12 140452.90 49.9 12.9 140453.3 0.073 0.045
A-HCO18OCH3 131,13-121,12 140454.43 48.5 12.9 2 ... 0.043
E-HC18OOCH3 132,12-122,11 145979.69 52.6 12.6 145980.51 0.12 0.038
A-HC18OOCH3 132,12-122,11 145985.77 52.6 12.6 145985.63 0.055 0.037
E-HCO18OCH3 127,6-117,5 146004.17 76.6 7.93 146004.1 0.040 0.049
A-HCO18OCH3 127,6-117,5 146004.24 76.6 7.93 2 ... ...
A-HCO18OCH3 127,5-117,4 146004.47 77.2 7.93 2 ... ...
E-HC18OOCH3 122,10-112,9 147364.51 48.6 11.6 147363.8 0.085 0.038
E-HC18OOCH3 141,14-131,13 147369.38 56.2 13.9 147371.34 0.11 0.048
A-HC18OOCH3 141,14-131,13 147370.78 54.4 13.9 2 ... 0.049
A-HC18OOCH3 122,10-112,9 147377.44 54.4 11.6 147377.0 0.11 0.038
E-HC18OOCH3 140,14-130,13 147423.20 56.2 13.9 147423.81 0.22 0.050
A-HC18OOCH3 140,14-130,13 147424.53 54.4 13.9 2 ... ...
E-HCO18OCH3 140,14-130,13 150934.10 57.7 13.9 150934.6 0.11 0.052
A-HCO18OCH3 140,14-130,13 150935.51 55.7 13.9 2 ... ...
E-HC18OOCH3 134,10-124,9 154549.58 62.4 11.8 154550.1 0.062 0.038
E-HCO18OCH3 133,11-123,10 156545.98 58.7 12.6 156546.5 0.056 0.039
E-HCO18OCH3 137,7-127,6 158334.49 84.2 9.26 158335.0 0.034 0.053
A-HCO18OCH3 137,7-127,6 158334.52 84.2 9.26 2 ... ...
E-HCO18OCH3 137,6-127,5 158335.25 84.2 9.26 2 ... ...
A-HC18OOCH3 1410,5-1310,4 164877.29 124.8 6.86 164877.6 0.058 0.018
A-HC18OOCH3 1410,4-1310,3 164877.29 124.8 6.86 2 ... ...
A-HCO18OCH3 133,10-123,9 166818.88 60.5 12.4 166819.51 0.070 0.042
E-HC18OOCH3 160,16-150,15 167776.18 72.9 15.9 167778.51 0.10 0.066
A-HC18OOCH3 160,16-150,15 167777.40 70.0 15.9 2 ... ...
E-HCO18OCH3 146,8-136,7 171239.76 84.3 11.4 171240.1 0.021 0.029
E-HCO18OCH3 161,16-151,15 171768.46 74.8 15.9 171769.5 0.10 0.067
A-HCO18OCH3 161,16-151,15 171769.77 71.7 15.9 2 ... ...
E-HCO18OCH3 145,9-135,8 172580.99 77.5 12.2 172580.5 0.13 0.034
A-HCO18OCH3 145,9-135,8 172605.81 77.5 12.2 172606.5 0.14 0.034
E-HC18OOCH3 191,19-181,18 198318.71 101.5 18.9 198321.1 0.10 0.080
A-HC18OOCH3 191,19-181,18 198319.77 97.1 18.9 2 ... ...
E-HC18OOCH3 190,19-180,18 198321.96 101.5 18.9 2 0.082
A-HC18OOCH3 190,19-180,18 198323.01 97.1 18.9 2 ... ...
E-HC18OOCH3 172,15-162,14 198878.18 91.5 16.4 198877.31 0.069 0.046
A-HC18OOCH3 172,15-162,14 198886.46 91.5 16.4 198888.55 0.060 0.046
A-HC18OOCH3 176,11-166,10 202607.55 110.5 14.9 202608.16 0.076 0.031
E-HCO18OCH3 191,19-181,18 203058.14 104.1 18.9 203059.4 0.16 0.11
A-HCO18OCH3 191,19-181,18 203059.27 99.5 18.9 2 ... ...
E-HCO18OCH3 190,19-180,18 203060.03 104.1 18.9 2 ... ...
A-HCO18OCH3 190,19-180,18 203061.15 99.5 18.9 2 ... ....
E-HC18OOCH3 201,20-191,19 208502.31 112.0 19.9 7 ... 0.11
A-HC18OOCH3 201,20-191,19 208503.31 107.1 19.9 2 ... ...
E-HC18OOCH3 200,20-190,19 208504.12 112.0 19.9 2 ... ...
A-HC18OOCH3 200,20-190,19 208505.12 107.1 19.9 2 ... ...
A-HC18OOCH3 1811,8-1711,7 212218.60 175.8 11.3 212219.8 0.071 0.025
A-HC18OOCH3 1811,7-1711,6 212218.60 175.8 11.3 2 ... ...
E-HCO18OCH3 201,20-191,19 213485.36 114.8 19.9 1 ... 0.16
E-HCO18OCH3 200,20-190,19 213486.38 114.8 19.9 2 ... ...
A-HCO18OCH3 201,20-191,19 213486.42 109.7 19.9 2 ... ...
A-HCO18OCH3 200,20-190,19 213487.44 109.7 19.9 2 ... ...
E-HC18OOCH3 187,11-177,10 213740.59 129.0 15.2 213741.1 0.045 0.052
A-HC18OOCH3 187,12-177,11 213741.50 129.0 15.3 2 ... ...
E-HC18OOCH3 186,13-176,12 214582.20 120.8 15.9 214583.61 0.15 0.065
A-HC18OOCH3 186,13-176,12 214582.20 120.7 16.0 2 ... ...
E-HC18OOCH3 211,21-201,20 218684.67 122.9 20.9 8 ... 0.16
A-HC18OOCH3 211,21-201,20 218685.61 117.6 20.9 2 ... ...
E-HC18OOCH3 210,21-200,20 218685.68 122.9 20.9 2 ... ...
A-HC18OOCH3 210,21-200,20 218686.61 117.6 20.9 2 ... ...
E-HCO18OCH3 211,21-201,20 223911.47 126.0 20.9 9 ... 0.18
E-HCO18OCH3 210,21-200,20 223912.01 126.0 20.9 2 ... ...
A-HCO18OCH3 211,21-201,20 223912.48 120.5 20.9 2 ... ...
A-HCO18OCH3 210,21-200,20 223913.02 120.5 20.9 2 ... ...
A-HC18OOCH3 198,12-188,11 225191.38 149.5 15.7 225194.9 0.15 0.028
E-HC18OOCH3 198,12-188,11 225194.04 149.5 15.7 2 ... 0.048
A-HC18OOCH3 198,11-188,10 225194.84 149.5 15.7 2 ... ...
A-HC18OOCH3 212,20-202,19 228083.06 126.5 20.6 228083.610 0.16 0.043
E-HC18OOCH3 221,22-211,21 228865.84 134.4 21.9 11 ... 0.18
E-HC18OOCH3 220,22-210,21 228866.40 134.4 21.9 2 ... ...
A-HC18OOCH3 221,22-211,21 228866.72 128.6 21.9 2 ... ...
A-HC18OOCH3 220,22-210,21 228867.27 128.6 21.9 2 ... ...
E-HCO18OCH3 184,14-174,13 231398.96 112.9 17.2 231402.312 0.11 0.045
E-HC18OOCH3 195,14-185,13 232102.19 125.3 17.7 232103.0 0.11 0.038
E-HCO18OCH3 203,18-193,17 232673.55 126.1 19.3 232673.913 0.14 0.037
E-HCO18OCH3 196,14-186,13 234214.48 134.5 17.1 234215.5 0.049 0.035
A-HCO18OCH3 196,14-186,13 234226.53 134.4 17.1 234227.5 0.052 0.034
E-HCO18OCH3 221,22-211,21 234336.48 137.7 21.9 234337.61 1.00 0.19
E-HCO18OCH3 220,22-210,21 234336.77 137.7 21.9 2 ... ...
A-HCO18OCH3 221,22-211,21 234337.43 131.7 21.9 2 ... ...
A-HCO18OCH3 220,22-210,21 234337.72 131.7 21.9 2 ... ...
E-HC18OOCH3 221,21-211,20 238283.08 140.9 21.6 238281.414 0.14 0.043
A-HC18OOCH3 221,21-211,20 238288.08 137.9 21.6 238290.115 0.11 0.042
E-HC18OOCH3 205,16-195,15 238745.64 136.1 18.8 238746.7 0.035 0.037
E-HC18OOCH3 231,23-221,22 239045.82 146.3 22.9 239047.3 0.18 0.19
E-HC18OOCH3 230,23-220,22 239046.13 146.3 22.9 2 ... ...
A-HC18OOCH3 231,23-221,22 239046.64 140.1 22.9 2 ... ...
A-HC18OOCH3 230,23-220,22 239046.95 140.1 22.9 2 ... ...
E-HCO18OCH3 231,23-221,22 244760.37 149.9 22.9 244761.5 0.10 0.19
E-HCO18OCH3 230,23-220,22 244760.52 149.9 22.9 2 ... ...
A-HCO18OCH3 231,23-221,22 244761.26 143.4 22.9 2 ... ...
A-HCO18OCH3 230,23-220,22 244761.42 143.4 22.9 2 ... ...
E-HC18OOCH3 241,24-231,23 249224.59 158.7 23.9 16 ... 0.19
E-HC18OOCH3 240,24-230,23 249224.76 158.7 23.9 2 ... ...
A-HC18OOCH3 241,24-231,23 249225.35 152.1 23.9 2 ... ...
A-HC18OOCH3 240,24-230,23 249225.52 152.1 23.9 2 ... ...
E-HCO18OCH3 241,24-231,23 255183.10 162.6 23.9 17 ... 0.19
E-HCO18OCH3 240,24-230,23 255183.18 162.6 23.9 2 ... ...
A-HCO18OCH3 241,24-231,23 255183.93 155.7 23.9 2 ... ...
A-HCO18OCH3 240,24-230,23 255184.02 155.7 23.9 2 ... ...
E-HC18OOCH3 242,23-232,22 258607.91 166.3 23.6 258607.4 0.094 0.042
A-HC18OOCH3 242,23-232,22 258612.84 162.3 23.6 258612.518 0.13 0.043
E-HCO18OCH3 217,15-207,14 258616.51 166.6 18.5 258617.6 0.094 0.078
E-HC18OOCH3 241,23-231,22 258616.65 166.3 23.6 2 ... ...
A-HCO18OCH3 217,15-207,14 258619.88 166.6 18.7 258623.5 0.13 0.061
A-HC18OOCH3 241,23-231,22 258621.56 162.2 23.6 2 ... ...
E-HC18OOCH3 251,25-241,24 259402.10 171.5 24.9 259403.9 0.16 0.19
E-HC18OOCH3 250,25-240,24 259402.19 171.5 24.9 2 ... ...
A-HC18OOCH3 251,25-241,24 259402.80 164.5 24.9 2 ... ...
A-HC18OOCH3 250,25-240,24 259402.90 164.5 24.9 2 ... ...
E-HCO18OCH3 224,19-214,18 262823.90 158.7 21.1 262825.5 0.064 0.039
E-HCO18OCH3 251,25-241,24 265604.62 175.8 24.9 265605.5 0.13 0.19
E-HCO18OCH3 250,25-240,24 265604.66 175.8 24.9 2 ... ...
A-HCO18OCH3 251,25-241,24 265605.40 168.4 24.9 2 ... ...
A-HCO18OCH3 250,25-240,24 265605.44 168.4 24.9 2 ... ...
E-HCO18OCH3 214,17-204,16 267813.37 149.8 20.2 267815.4 0.054 0.042
E-HC18OOCH3 242,22-232,21 268260.21 172.1 23.3 268261.2 0.14 0.041
E-HC18OOCH3 261,26-251,25 269578.30 184.9 25.9 19 ... 0.21
E-HC18OOCH3 260,26-250,25 269578.35 184.9 25.9 2 ... ...
A-HC18OOCH3 261,26-251,25 269578.95 177.4 25.9 2 ... ...
A-HC18OOCH3 260,26-250,25 269579.00 177.4 25.9 2 ... ...
E-HCO18OCH3 261,26-251,25 276024.88 189.4 25.9 276025.5 0.31 0.19
E-HCO18OCH3 260,26-250,25 276024.90 189.4 25.9 2 ... ...
A-HCO18OCH3 261,26-251,25 276025.60 181.7 25.9 2 ... ...
A-HCO18OCH3 260,26-250,25 276025.62 181.7 25.9 2 ... ...
E-HC18OOCH3 271,27-261,26 279753.14 198.7 26.9 279754.520 0.37 0.18
E-HC18OOCH3 270,27-260,26 279753.16 198.7 26.9 2 ... ...
A-HC18OOCH3 271,27-261,26 279753.73 190.9 26.9 2 ... ...
A-HC18OOCH3 270,27-260,26 279753.76 190.9 26.9 2 ... ...

Notes. Emission lines of 18O-HCOOCH3 present in the frequency range of the 30-m Orion KL survey. Column 1 gives the species; Col. 2: line transition; Col. 3: calculated rest frequencies; Col. 4: energy of the upper level; Col. 5: line strength; Col. 6: observed frequencies; Col. 7: peak line temperature; Col. 8: main-beam temperature obtained with the model.

(1)

Blended with the U-line.

(2)

Blended of several K-components.

(3)

Blended with H18OD.

(4)

Blended with SO17O.

(5)

Blended with SO17O and CH3OCH3.

(6)

Blended with HC3N ν7 = 4.

(7)

Blended with CH3CH2CN b type.

(8)

Blended with HC3N ν6 = 1 − .

(9)

Blended with HCOOH.

(10)

Blended with a wing of a CH2CHCN line.

(11)

Blended with HC3N ν7 = 2.

(12)

Blended with HCOOCH3.

(13)

Blended with 13CH3CCH.

(14)

Blended with H2C33S.

(15)

Blended with a wing of a CH2CHCN ν11 = 1 line.

(16)

Blended with CH3CH2CN b type and CH2CHCN ν15 = 1.

(17)

Blended with 13CH3OH.

(18)

Blended with CH313CH2CN and DCOOCH3.

(19)

Blended with CH3CH2CN a type.

(20)

Blended with CH3CH213CN.

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