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Table A.3

Lines of DC3N with emission frequencies whithin the 30-m IRAM survey.

Species Transition Predicted S ij E u Observed Observed Observed Blended
JJ freq. (K) freq. V LSR T MB with
(MHz) (MHz) (km s-1) (K)

DC3N 10–9 84 429.809 10.0 22.3 84 430.5 6.6 0.04 (CH3)2CO
DC3N 11–10 92 872.373 11.0 26.7 92 872.5 8.6 0.03
DC3N 12–11 101 314.817 12.0 31.6 101 314.5 9.9 0.04
DC3N 13–12 109 757.131 13.0 36.9 ... ... ... SO2, HCOOCH3νt = 1
DC3N 16–15 135 083.185 16.0 55.1 135 083.9 7.4 0.11
DC3N 17–16 143 524.870 17.0 62.0 ... ... .... CH3CH2CN
DC3N 18–17 151 966.371 18.0 69.3 151 966.5 8.7 0.13
DC3N 19–18 160 407.677 19.0 77.0 ... ... ... (CH3)2CO
DC3N 20–19 168 848.777 20.0 85.1 ... ... ... H2C34S, CH3CH2CN ν13/ν21
DC3N 21–20 177 289.660 21.0 93.6 ... ... ... HCN
DC3N 24–23 202 610.900 24.0 121.6 202 612.5 6.6 0.16
DC3N 25–24 211 050.808 25.0 131.7 211 052.5 6.6 0.18
DC3N 26–25 219 490.444 26.0 142.2 ... ... ... CH3OCH3
DC3N 27–26 227 929.799 27.0 153.2 ... ... ... CH2CHCN
DC3N 28–27 236 368.861 28.0 164.5 ... ... ... HCOOCH3
DC3N 29–28 244 807.619 29.0 176.3 244 809.2 7.1 0.15 H13COOCH3νt = 1
DC3N 30–29 253 246.063 30.0 188.4 ... ... ... CH3OH
DC3N 31–30 261 684.183 31.0 201.0 ... ... ... H13COOCH3νt = 1
DC3N 32–31 270 121.966 32.0 213.9 270 123.8 7.0 0.31 HCOOCH3νt = 1
DC3N 33–32 278 559.402 33.0 227.3 ... ... ... HCOOCH3, CH3CH2CN

Notes. Column 1 indicates the species, Col. 2 the quantum numbers of the line transition, Col. 3 gives the assumed rest frequencies, Col. 4 the line strength, Col. 5 the energy of the upper level, Col. 6 the observed frequency assuming a VLSR of 9.0 km s-1, Col. 7 the observed radial velocities, Col. 8 the peak line main-beam temperature, and Col. 9 the blended species.

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