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This article has an erratum: [https://doi.org/10.1051/0004-6361/202347174e]

Table B.1.

Line parameters of the observed transitions of H2CCCH+ in TMC-1.

Transition νobs a ∫ dv b Δvc d σe Notes
(MHz) (mK × kms−1) (kms−1) (mK) (mK)
21, 2 − 11, 1 37702.627±0.010 0.38±0.13 0.63±0.20 0.56 0.13
20, 2 − 10, 1 38037.044±0.010 0.36±0.09 0.78±0.17 0.43 0.13
21, 1 − 11, 0 38368.581±0.010 0.57±0.07 0.77±0.11 0.70 0.13 A
40, 4 − 30, 3 76071.062±0.020 3.40 B
41, 3 − 31, 2 76735.888±0.020 2.28±0.07 0.40±0.10 5.50 1.80 CD
51, 5 − 41, 4 94254.055±0.004 2.04 B
50, 5 − 40, 4 95085.988±0.030 3.27±0.08 0.85±0.23 3.60 1.40 BD
51, 4 − 41, 3 95918.765±0.020 1.04±0.20 0.40±0.10 3.30 0.67
61, 6 − 51, 5 113103.272±0.004 4.40 B
60, 6 − 50, 5 114099.086±0.006 4.90 B

Notes.

a

Observed frequency assuming a vLSR of 5.83 km s−1.

b

Integrated line intensity in mK × km s−1.

c

Line width in km s−1.

d

Antenna temperature in mK.

e

Root mean square noise of the data.

A

Blended with a weak feature at 38638.7 MHz.

B

For undetected lines their rest frequencies correspond to the observed frequency in the laboratory (Table 1) or to the predicted value from the molecular constants of Table 2.

C

The feature appears too strong.

D

Marginal detection.

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