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Home All issues Volume 631 (November 2019) A&A, 631 (2019) A142 Full HTML
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Table A.1

Transition properties (rest frequency, species, quantum numbers, upper state energy, critical density) of detected molecular lines in the average AFGL 2591 spectrum shown in Fig. 3.

Frequency Molecule Transition Eu/kB ncrit
(GHz) (K) (cm−3)
217.239 DCN 3−2 21 −
217.299 CH3 OH;vt = 1 61,5 −72,5(A) 374 −
217.399 HC13CCN 24−23 130 −
13CH3 OH 102,8 −93,7(A) 162 −
217.643 CH3 OH;vt = 1 156,9 −165,11(A) 746 −
CH3 OH;vt = 1 156,10 −165,12(A) 746 −
217.832 33SO 65 −54 35 −
217.887 CH3 OH 201,19 −200,20(E) 508 −
218.127 CH3 COCH3 202,18 −193,17(EE) 119 −
CH3 COCH3 203,18 −193,17(EE) 119 −
CH3 COCH3 202,18 −192,17(EE) 119 −
CH3 COCH3 203,18 −192,17(EE) 119 −
218.199 O13CS 18−17 99 −
218.222 H2 CO 30,3 −20,2 21 2.18(06)
218.281 CH3 OCHO 173,14 −163,13(E) 100 −
218.298 CH3 OCHO 173,14 −163,13(A) 100 −
218.325 HC3 N 24−23 131 4.56(06)
218.390 C2 H5 CN 243,21 −233,20 140 −
218.402 C2 H3 CN 236,18 −226,17 204 −
C2 H3 CN 236,17 −226,16 204 −
218.440 CH3 OH 42,3 −31,2(E) 45 1.20(08)
218.451 C2 H3 CN 235,19 −225,18 180 −
C2 H3 CN 235,18 −225,17 180 −
218.459 NH2 CHO 101,9 −91,8 61 −
HC3 N;v5 = 1/v7 = 3 24−23,v5 = 11+ 1085 −
218.476 H2 CO 32,2 −22,1 68 2.03(06)
218.492 CH3 OCH3 233,21 −232,22(EE) 264 −
218.520 C2 H3 CN 2310,14 −2210,13 341 −
C2 H3 CN 2310,13 −2210,12 341 −
218.574 C2 H3 CN 234,20 −224,19 160 −
218.683 HC3 N;v6 = 1 24−23,l = 1e 849 −
218.760 H2 CO 32,1 −22,0 68 2.08(06)
218.861 HC3 N;v7 = 1 24−23,l = 1e 452 −
HC3 N;v6 = 1 24−23,l = 1f 849 −
218.875 33SO2 222,20 −221,21 252 −
218.882 33SO2 222,20 −221,21 252 −
218.903 OCS 18−17 100 3.89(05)
218.981 HNCO 101,10 −91,9 101 7.78(06)
218.996 SO2 ;v2 = 1 202,18 −193,17 971 −
219.174 HC3 N;v7 = 1 24−23,l=1f 452 −
219.220 CH3 COCH3 211,20 −202,19(AE) 122 −
CH3 COCH3 211,20 −201,19(EA) 122 −
CH3 COCH3 212,20 −202,19(EA) 122 −
CH3 COCH3 212,20 −201,19(AE) 122 −
219.242 CH3 COCH3 211,20 −201,19(EE) 122 −
CH3 COCH3 212,20 −202,19(EE) 122 −
219.276 SO2 227,15 −236,18 353 1.96(06)
219.355 34SO2 111,11 −100,10 60 −
219.401 C2 H3 CN 233,20 −223,19 145 −
219.466 SO2 ;v2 = 1 222,20 −221,21 1013 −
219.506 C2 H5 CN 242,22 −232,21 136 −
219.560 C18O 2−1 16 1.18(04)
219.616 Unidentified
219.657 HNCO 103,8 − 93,7 433 −
HNCO 103,7 − 93,6 433 −
219.675 HC3 N;v7 = 2 24− 23,l = 0 773 −
219.707 HC3 N;v7 = 2 24− 23,l = 2e 777 −
219.734 HNCO 102,9 −92,8 228 −
HNCO 102,8 −92,7 228 −
HC3 N;v7 = 2 24−23,l = 2f 777 −
219.798 HNCO 100,10 −90,9 58 6.86(06)
219.909 HCO 31,2 −21,1 33 −
219.949 SO 65 −54 35 2.27(06)
219.994 CH3 OH 235,18 −226,17(E) 776 −
220.038 t-HCOOH 100,10 −90,9 59 −
220.079 CH3 OH 80,8 −71,6(E) 97 3.40(07)
HC3 N;v5 = 1/v7 = 3 24−23,v7 = 31− 1087 −
220.165 SO2 ;v2 = 1 163,13 −162,14 910 −
CH3 OCHO 174,13 −164,12(E) 103 −
220.178 CH2 CO 111,11 −101,10 76 −
220.190 CH3 OCHO 174,13 −164,12(A) 103 −
220.355 CH3 COCH3 220,22 −210,21(AE&EA) 124 −
CH3 COCH3 221,22 −211,21(EA) 124 −
220.362 CH3 COCH3 221,22 −211,21(EE) 124 −
CH3 COCH3 220,22 −210,21(EE) 124 −
220.368 CH3 COCH3 221,22 −211,21(AA) 124 −
CH3 COCH3 220,22 −210,21(AA) 124 −
220.399 13CO 2−1 16 1.18(04)
CH3 OH 10−5,6 −11−4,8(E) 252 9.32(06)
220.407 HC3 N;v5 = 1/v7 = 3 24−23,v7 = 33− 1094 −
HC3 N;v5 = 1/v7 = 3 24−23,v7 = 33+ 1094 −
220.476 CH3 CN 128 −118 526 2.36(06)
220.539 CH3 CN 127 −117 419 2.71(06)
220.585 HNCO 101,9 −91,8 102 7.95(06)
220.594 CH3 CN 126 −116 326 3.44(06)
CHCN 123 −113 133 −
220.618 33SO2 111,11 −100,10 61 −
CHCN 122 −112 97 −
220.641 CH3 CN 125 −115 247 3.41(06)
CHCN 121 −111 76 −
CHCN 120 −110 69 −
220.658 SO2 ;v2 = 1 125,7 −134,10 896 −
C2 H5 CN 252,24 −242,23 143 −
220.679 CH3 CN 124 −114 183 3.73(06)
220.709 CH3 CN 123 −113 133 4.05(06)
220.730 CH3 CN 122 −112 97 3.99(06)
220.743 CH3 CN 121 −111 76 3.92(06)
CH3 CN 120 −110 69 4.23(06)

Notes. a(b) = a × 10b. The collisional rate coefficients measured at the following temperatures were used to calculate the critical density: (a) Cul (T = 200 K). (b) Cul (T = 160 K). (c) Cul (T = 140 K).

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