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Table B.5.

Line parameters of CH2CHCN.

Transition
νrest νz = 0.885875 Eu/kB Aul Sul gu τdv v0 vFWHM
(JKa, Kc)u → (JKa, Kc)l [MHz] [MHz] [K] [s−1] [10−3 km s−1] [km s−1] [km s−1]
71, 7 → 61, 6 64749.012 34333.671 14.6 2.11 × 10−5 6.86 15 26.1 (3.2) −0.2 (0.4) 5.7 (0.7)
70, 7 → 60, 6 66198.347 35102.193 12.7 2.30 × 10−5 7.00 15 26.7 (3.5) −0.6 (0.3) 6.3 (0.8)
71, 6 → 61, 5 67946.687 36029.263 15.2 2.44 × 10−5 6.86 15 28.6 (4.4) −0.9 (0.4) 6.1 (0.9)
81, 8 → 71, 7 73981.555 39229.299 18.2 3.19 × 10−5 7.87 17 21.5 (3.2) −2.2 (0.3) 5.0 (0.8)(†)
80, 8 → 70, 7 75585.693 40079.906 16.4 3.45 × 10−5 8.00 17 24.3 (3.6) −0.2 (0.4) 5.0 (0.8)(†)
82, 6 → 72, 5 76128.883 40367.937 25.1 3.31 × 10−5 7.50 17 5.6 (0.8) −1.5 (0.7) 5.0 (0.8)(†),(††)
81, 7 → 71, 6 77633.824 41165.944 18.9 3.68 × 10−5 7.87 17 16.8 (2.9) +0.3 (0.4) 5.0 (0.8)(†),(††)

Notes. Spectroscopic line parameters were obtained using MADEX by fitting all the rotational lines reported by Kisiel et al. (2009). Parentheses indicate the uncertainty obtained by the Gaussian fitting programme. (†)Owing to the weakness of these lines, we fixed vFWHM to 5.0 km s−1 in order to fit a Gaussian profile. We assume an uncertainty of 15% for this value. (††)These lines are below a 3σ level. We did not include them in the analysis of the rotational diagrams.

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