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Table 3

Spectroscopic parameters of the observed lines obtained from the CDMS data base (Müller et al. 2001).

Molecule Transition ν Eu Aul gu
[GHz] [K] [s-1]

o - H2CO 212 − 111 140.839 21.92 5.3 × 10-5 15
p - H2CO 202 − 101 145.603 10.48 7.8 × 10-5 5
o - H2CO 211 − 110 150.498 22.62 6.5 × 10-5 15
o - H2CO 313 − 212 211.211 32.06 2.3 × 10-4 21
p - H2CO 303 − 202 218.222 20.96 2.8 × 10-4 7
p - H2CO 322 − 221 218.476 68.09 1.6 × 10-4 7
o - H2CO 312 − 211 225.698 33.45 2.8 × 10-4 21

212 − 111 137.450 10.51 4.9 × 10-5 15
202 − 101 141.984 2.37 7.2 × 10-5 5

HDCO 211 − 110 134.285 17.63 4.6 × 10-5 5
HDCO 312 − 211 201.341 27.29 2.0 × 10-4 7

o - D2CO 212 − 111 110.838 13.37 2.6 × 10-5 5
p - D2CO 404 − 303 231.410 27.88 3.5 × 10-4 18

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