Pure rotational spectra of TiO and TiO2 in VY Canis Majoris

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Table 1

Observed parameters of the TiO lines.

Transition^a	ν _rest	E _u	S _ul ^b	Peak^c	Flux^d	rms^e	S/N^f
J′ → J, Ω	(GHz)	(K)		(mJy)	(Jy km s^-1)	(mJy)

PdBI
7→6, 1	221.580	41	13.71	74	1.2	5.4	26.3
7→6, 2	224.139	181	12.85	73	1.3	7.3	20.5

SMA
9 → 8, 1	284.875	67	17.77	150	1.8	46	8.5
9 → 8, 2	288.156	207	17.11	240	2.3	66	7.6
9 → 8, 3	290.998	354	16.00	<160	<0.7	50	<3.0
10 → 9, 1	316.519	82	19.80	230	2.4	50	10.6
10 → 9, 2	320.159	222	19.20	580	3.1	174	3.9
10 → 9, 3	323.314	369	18.20	<1470	<14.0	1021	<3.0
11 → 10, 1	348.160	99	21.81	440	4.7	73	14.1
11 → 10, 2	352.158	239	21.27	290	2.3	125	4.1

Notes.

^(a)

Ω = 1,2,3 refers to the fine structure components , or .

^(b)

The quantum mechanical line strength of the rotational transition.

^(c)

Peak flux density at a resolution of 2.7 km s^-1 (PdBI) or 0.8 km s^-1 (SMA) for the full synthesized beam.

^(d)

Flux integrated between 6 and 32 km s^-1 and within the full synthesized beam.

^(e)

The rms per bin of 2.7 km s^-1 (PdBI) or 0.8 km s^-1 (SMA).

^(f)

The signal-to-noise ratio.

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