Pure rotational spectra of TiO and TiO2 in VY Canis Majoris

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Table A.1

Lines identified in the PdBI spectrum.

Mole-	Transition^a	ν _rest	E _u	S _ul ^b	V _cen ^c
cule		(GHz)	(K)		(km s^-1)

TiO₂	23_5,19 → 23_4,20	220.812	230	12.857	14.8
TiO₂	4_4,0 → 3_3,1	221.096	25	3.476	17.1
³⁴SO₂	22_2,20 → 22_1,21	221.115	248	12.663	–8.9
NaCl	J = 17 → 16	221.260	96	14.200	21.7
KCl	ν= 1, J = 29 → 28	221.298	395	16.800	18.3
TiO₂	32_5,27 → 32_4,28	221.407	424	19.365	35.2
TiO₂	28_4,24 → 28_3,25	221.458	323	14.873	26.9
TiO	J = 7 → 6, Ω = 1	221.580	41	13.710	20.5
³⁴SO₂	13_2,12 → 13_1,13	221.736	93	4.887	19.4
SO₂	11_1,11 → 10_0,10	221.965	60	7.711	24.7
(SO₂)	ν₂ = 1, 11_1,11 → 10_0,10	222.424	821	7.949	23.0
KCl	J = 29 → 28	222.666	116	25.000	22.4
SO₂	27_8,20 → 28_7,21	223.435	504	3.701	9.9
SO₂	6_4,2 → 7_3,5	223.883	59	0.433	35.0
TiO	J = 7 → 6, Ω = 2	224.139	181	12.854	21.4
SO₂	20_2,18 → 19_3,17	224.265	208	4.615	...

Notes.

^(a)

Quantum numbers of the transition.

^(b)

The quantum mechanical line strength of the rotational transition.

^(c)

Centroid position of the emission with respect to the rest frequency.

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