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Home All issues Volume 648 (April 2021) A&A, 648 (2021) A49 Full HTML
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Table 2

Line intensities from IRAM observations: multi-line averages.

Molecule Transitions Frequency Pointing offset Intensity
N (a) JKa,Kc (b) range (GHz) (′′) average (mK km s−1)
NH2CHO 2 80,8 + 81,8 163–167 1.7 8.4 ± 2.9
NH2CHO 3 101,9 + 102,8 + 102,9 213–218 1.1 8.4 ± 2.9
NH2CHO 5 103,Kc + 104,Kc + 105,Kc 212–213 0.9 7.3 ± 2.4
NH2CHO 5 110,11 + 111,Kc + 112,Kc 223–240 1.3 12.3 ± 2.6
NH2CHO 5 113,Kc + 114,Kc + 115,Kc 233–234 1.7 13.3 ± 3.1
NH2CHO 5 120,12 + 121,Kc + 122,Kc 244–261 1.7 16.4 ± 3.1
NH2CHO 5 123,Kc + 124,Kc + 125,Kc 255–256 1.7 10.0 ± 2.8
NH2CHO 2 130,13 + 131,13 264–267 1.7 1.4 ± 5.3
NH2CHO 30 JKa,Kc, J = 10–13, Ka = 0–5 212–267 1.5 12.0 ± 1.2
10.1 <8.1
CH3CHO 6 80,8 + 81,8 + 82,7 146–154 1.6 3.4 ± 1.5
CH3CHO 6 111,10 + 112,9 + 112,10 211–217 0.9 11.4 ± 2.4
CH3CHO 10 120,12 + 121,Kc + 122,Kc 224–236 1.5 9.1 ± 2.4
CH3CHO 8 123,Kc + 124,Kc 231–232 0.9 7.5 ± 2.3
CH3CHO 10 130,13 + 131,Kc + 132,Kc 242–255 1.9 12.3 ± 2.1
CH3CHO 8 133,Kc + 134,Kc 250–251 1.9 6.9 ± 2.1
CH3CHO 6 135,Kc + 136,Kc 250.6 2.0 6.5 ± 2.3
CH3CHO 6 140,14 + 141,14 + 142,13 261–268 1.9 12.8 ± 3.3
CH3CHO 4 143,11 + 143,12 270–271 1.9 0.7 ± 3.5
CH3CHO 32 JKa,Kc, J = 11–14, Ka = 0–2 211–268 1.5 11.0 ± 1.3
9.5 9.6 ± 3.0
11.3 7.2 ± 3.9
C2H5OH 11 JKa,Kc, J = 8–10, Ka = 0–1 147–168 1.9 5.4 ± 1.9
C2H5OH 26 JKa,Kc, J = 4–11 214–270 1.6 0.0 ± 1.5
C2H5OH 65 JKa,Kc, J = 12–16 214–267 1.6 2.9 ± 0.9
(CH2OH)2 13 JKa,Kc, J = 12–18, Ka = 0–8 147–169 1.6 5.2 ± 1.5
(CH2OH)2 80 JKa,Kc, J = 20–29, Ka = 0–5 210–271 1.6 5.0 ± 0.8
10.2 5.7 ± 1.7
H2CS 3 717 + 716 + 818 237–271 1.8 15 ± 4
HC3N 2 17–16 + 18–17 155–164 1.7 2 ± 4
HC3N 6 24–23 to 29–28 218–264 1.7 6 ± 3
OCS 5 18–17 to 22–21 219–267 1.7 6 ± 3
HNCO 3 100,10 + 110,11 + 120,12 220–264 1.7 8 ± 4
HNCO 9 J0,Kc and J1,Kc , J = 10–12 219–264 1.7 1.5 ± 2.2
HCOOH 15 JKa,Kc :J = 10, 11:Ka < 3; J = 12:Ka < 4 215–271 1.6 0.5 ± 1.8
C2 H5 CN 14 JKa,Kc , J = 17–20, Ka = 0–6 147–170 1.6 1.5 ± 1.6
C2 H5 CN 61 JKa,Kc , J = 23–31, Ka = 0–7 210–266 1.6 1.7 ± 1.0
C2 H3 CN 13 JKa,Kc , J = 16–18 146–171 1.7 <5.1
C2 H3 CN 40 JKa,Kc , J = 22–29 210–272 1.7 <3.6
CH3 COCH3 95 JKa,Kc 210–272 1.6 <2.4
CH3 COOH 52 JKa,Kc 215–271 1.6 <3.0
CH3 NH2 32 JKa,Kc , J = 2–9, Ka = 0–2 215–271 1.6 2.1 ± 1.2
PO 4 11/2–9/2 239–240 1.7 4 ± 4

Notes. (a) Number of lines averaged. (b) JKa,Kc quantum numbers of the upper level of the transitions, with range of values, or Jup − Jlow for OCS, HC3 N, or PO.

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