Rotation of the asymptotic giant branch star R Doradus

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Table 1

Rotation model fit results.

Line	Rest freq.	R_shell	υ_{R, rot} sin i	ω_R sin i	υ_sys	υ_exp	Φ
	[GHz]	[mas]	[km s⁻¹]	[10⁻⁹ rad s⁻¹]	[km s⁻¹]	[km s⁻¹]	[°]
SiO v = 3, J = 5 − 4	212.5826	36 ± 1	− 1.4 ± 0.3	4.7 ± 0.8	4.9 ± 0.2	1.7 ± 0.2	− 1 ± 11	1.13
SO₂	214.68939	66 ± 2	− 1.8 ± 0.1	3.2 ± 0.2	6.7 ± 0.1	0.0 ± 0.1	9 ± 4	0.89
²⁹SiO v = 1, J = 5 − 4^a	212.90515	–	− 4.1 ± 1.0^b	15 ± 4	3.1 ± 0.2	–	3 ± 16	1.46

Notes. ^(a) Only seen in absorption against the star. The fit represents the brightest of two absorption components. ^(b) The velocity at R_*.

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