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Table 3

Observational results

Star 183 GHz 28SiO v = 0 28SiO v = 1 28SiO v = 2 28SiO v = 3 29SiO v = 0 29SiO v = 1
H2O J = 4–3 J = 4–3 J = 4–3 J = 4–3 J = 4–3 J = 4–3
Peak ΔV Peak ΔV Peak ΔV Peak ΔV Peak ΔV Peak ΔV Peak ΔV
(rms) Range (rms) Range (rms) Range (rms) Range (rms) Range (rms) Range (rms) Range
(Jy) (km s-1) (Jy) (km s-1) (Jy) (km s-1) (Jy) (km s-1) (Jy) (km s-1) (Jy) (km s-1) (Jy) (km s-1)
VY CMa 493.7 [–13.7, 56.2] 30.2 [–22.6, 49.6] 96.8 [–3.2, 45.1] 176.9 [–3.2, 50.7] 51.2 [5.6, 21.2] 10.4 [–13.8, 45.5] 81.5 [11.6, 36.3]
(3.4) (0.6) (0.5) (0.5) (0.5) (0.5) (0.5)
VX Sgr 474.6 [–22.8, 32.1] 8.9 [–15.6, 30.2] 79.2 [–29.8, 41.3]a 38.0 [–7.2, 19.5] 8.7 [0.3, 10.5] 3.1 [–15.0, 30.8] 37.1 [–2.2, 13.9]
(1.4) (0.3) (0.3) (0.3) (0.3) (0.3) (0.3)
W Hya 728.6 [33.3, 46.8] 30.8 [32.6, 48.4] 227.8 [24.2, 49.1]a 38.2 [37.1, 52.0] 314.1 [36.9, 50.3] 19.1 [34.5, 46.8] 187.3 [35.9, 47.7]
(2.2) (0.5) (0.4) (0.4) (0.4) (0.4) (0.4)
U Her 130.5 [–24.5, –6.5] 7.1 [–19.9, –6.2] 19.9 [–19.9, –5.6] 29.8 [–22.4, –4.3] 7.1 [–16.8, –9.8] 2.8 [–22.2, –8.9] 12.0 [–16.5, –10.1]
(2.2) (0.5) (0.4) (0.4) (0.4) (0.4) (0.5)
R Aql 270.6 [43.2, 53.2] 16.7 [38.5, 55.4] <0.7 — 2.9 [42.7, 52.3] 2.5 [49.9, 52.1] 3.1 [43.3, 54.0] <0.6 —
(1.1) (0.2) (0.2) (0.2) (0.2) (0.2) (0.2)

Notes. RMS values are given for a velocity resolution of 0.5 km s-1. Linewidths are measured at the 2σ level to approximate to full-width zero maximum.

(a)

Linewidth appears to be contaminated by ghost emission from the other sideband. The true linewidth is narrower.

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