Table 2
TiO2 transitions that fall within the spectral range covered by the ALMA observations reported by us.
| Transition | ν | Eu | Flux | σFlux | gu | Au,l |
|---|---|---|---|---|---|---|
| (GHz) | (K) | (10−20 W/m2) | (10−20 W/m2) | (s−1) | ||
| 31(4,28)–31(3,29) | 329.598 | 376.53 | Blended with UD | 63 | 2.85 × 10−3 | |
| 50(8,42)–50(7,43) | 329.704 | 1023.25 | Not detected | 101 | 5.13 × 10−3 | |
| 35(20,16)–36(19,17) | 330.359 | 894.53 | Not detected | 71 | 4.63 × 10−3 | |
| 27(8,20)–27(7,21) | 331.212 | 346.43 | 1.20 | 0.15 | 55 | 4.56 × 10−3 |
| 26(8,18)–26(7,19) | 331.240 | 326.60 | 1.10 | 0.23 | 53 | 4.52 × 10−3 |
| 39(8,32)–39(7,33)a | 331.382 | 643.64 | 0.98 | 0.14 | 79 | 5.03 × 10−3 |
| 12(3,9)–11(2,10) | 331.600 | 67.55 | Blended with UD | 25 | 1.35 × 10−3 | |
| 14(4,10)–14(1,13) | 332.355 | 94.54 | Not detected | 29 | 1.77 × 10−4 | |
| 32(19,13)–33(18,16) | 332.528 | 778.07 | Not detected | 65 | 4.35 × 10−4 | |
| 17(8,10)–17(7,11) | 341.463 | 181.68 | 1.10 | 0.15 | 35 | 4.12 × 10−3 |
| 32(3,29)–32(2,30)b | 341.594 | 399.00 | Not detected? | 65 | 3.08 × 10−3 | |
| 16(8,8)–16(7,9) | 341.876 | 169.29 | 0.91 | 0.40 | 33 | 4.00 × 10−3 |
| 41(8,34)–41(7,35)c | 342.120 | 703.68 | 1.08 | 0.15 | 83 | 5.47 × 10−3 |
| 15(8,8)–15(7,9)d | 342.217 | 157.63 | 0.64 | 0.12 | 31 | 3.85 × 10−3 |
| 9(5,5)–8(4,4) | 342.345 | 60.23 | 0.57 | 0.10 | 19 | 4.71 × 10−3 |
| 14(8,6)–14(7,7) | 342.491 | 146.70 | Blended with SiO v = 2, J = 8−7 | 29 | 3.67 × 10−3 | |
| 13(8,6)–13(7,7) | 342.708 | 136.51 | 0.53 | 0.08 | 27 | 3.46 × 10−3 |
| 6(6,0)–5(5,1) | 342.862 | 54.87 | Blended with UD | 13 | 7.92 × 10−3 | |
| 12(8,4)–12(7,5) | 342.877 | 127.05 | Blended with UD | 25 | 8.43 × 10−3 | |
| 11(8,4)–11(7,5) | 343.004 | 118.33 | Blended with 29SiO v = 0, J = 8−7 | 23 | 2.86 × 10−3 | |
| 46(10,36)–46(9,37) | 343.049 | 903.83 | Not detected | 93 | 5.97 × 10−3 | |
| 23(3,21)–22(2,20) | 343.071 | 208.30 | Blended with 33SO NJ = 98−87 and UD | 47 | 5.27 × 10−3 | |
| 10(8,2)–10(7,3) | 343.097 | 110.33 | Blended with 33SO NJ = 98−87 | 21 | 2.43 × 10−3 | |
| 9(8,2)–9(7,3) | 343.162 | 103.06 | Blended with UD | 19 | 1.86 × 10−3 | |
| 8(8,0)–8(7,1) | 343.204 | 96.52 | Blended with UD | 17 | 1.09 × 10−3 | |
| 13(4,10)–12(3,9) | 343.243 | 84.03 | Blended with UD | 27 | 2.97 × 10−3 | |
Notes. We give the integrated flux of the detected lines obtained by integrating emission over a circular aperture with 84 mas radius (see text). The blended lines are indicated, and when the blending line is not known, we refer to it as UD (unidentified line). (a)The expected transition at 331.382 GHz was matched to an observed line centred at 331.386 GHz. Since the error on the tabulated frequency was relatively large (2.4 MHz), we identify the line at 331.386 GHz with transition 39(8,32)–39(7,33). (b)A line with flux that fits in the observed rotational diagram was observed at 341.600 GHz. Since the tabulated uncertainty on the transition frequency is relatively small (0.9 MHz), we have not included the line in the fitting procedure. (c)The expected transition at 342.120 GHz was matched to an observed line centred at 342.129 GHz. Since the error on the tabulated frequency was relatively large (2.6 MHz), we identify the line at 342.120 GHz with transition 41(8,34)–41(7,35). (d)Blended with a significantly weaker line.
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