Discovery of the cyclic C5H radical in TMC-1 | Astronomy & Astrophysics (A&A)

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Table 3.

Observed line parameters for l-C₅H in TMC-1.

Transition			ν_obs ^(a)	^(b)	Δv ^(c)
J′ ← J	F′ ← F	Parity	(MHz)	(mK km s⁻¹)	(km s⁻¹)	(mK)
15/2 ← 13/2	8 ← 7	e	35802.786	26.79 ± 0.13	0.70 ± 0.01	36.19 ± 0.17
15/2 ← 13/2	7 ← 6	e	35803.024	23.10 ± 0.13	0.68 ± 0.01	31.81 ± 0.17
15/2 ← 13/2	8 ← 7	f	35806.828	26.36 ± 0.09	0.69 ± 0.01	35.73 ± 0.14
15/2 ← 13/2	7 ← 6	f	35807.078	24.00 ± 0.09	0.69 ± 0.01	32.69 ± 0.14
17/2 ← 15/2	9 ← 8	e	40576.724	22.85 ± 0.19	0.54 ± 0.01	39.42 ± 0.20
17/2 ← 15/2	8 ← 7	e	40576.931	20.37 ± 0.20	0.57 ± 0.01	33.53 ± 0.20
17/2 ← 15/2	9 ← 8	f	40580.854	23.55 ± 0.17	0.58 ± 0.01	38.45 ± 0.15
17/2 ← 15/2	8 ← 7	f	40581.071	20.82 ± 0.17	0.55 ± 0.01	35.62 ± 0.15
19/2 ← 17/2	10 ← 9	e	45350.645	18.04 ± 0.15	0.58 ± 0.01	29.00 ± 0.20
19/2 ← 17/2	9 ← 8	e	45350.829	12.68 ± 0.15	0.55 ± 0.01	21.63 ± 0.20
19/2 ← 17/2	10 ← 9	f	45354.877	17.68 ± 0.20	0.60 ± 0.01	27.80 ± 0.35
19/2 ← 17/2	9 ← 8	f	45355.070	16.07 ± 0.20	0.59 ± 0.01	25.66 ± 0.35

^(a)

Notes.Observed frequencies towards TMC-1 for which we adopted a v_LSR of 5.83 km s⁻¹. The frequency uncertainty is 10 kHz.

^(b)

Integrated line intensity in mK km s⁻¹.

^(c)

Full width at half maximum derived by fitting a Gaussian function to the observed line profile (in km s⁻¹).

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