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Table 2

Transitions of TiO covered by APEX, Herschel, and ALMA.

Isoto- Jup → Jlow, ν Err(ν)a S μ 2 E u Dates of Vis. Flux (1σ)
pologue multiplet ΔΩ (MHz) (km s-1) (Debye2) (K) observation phase (Jy km s-1)
APEX
48TiO 7 →  6, Δ1 221 580.45 0.05 153.0 41.0 3–20 Dec. 2013, 1–7 Aug. 2016 0.5/0.35 0.89 (0.21)
7 →  6, Δ2 224 138.74 0.03 143.4 180.7 3–20 Dec. 2013, 1–7 Aug. 2016 0.5/0.35 <0.60
11 → 10, Δ3 355 623.35 0.04 227.2 386.2 30 Jun.–6 Jul. 2014 0.0 3.14 (0.73)
13 → 12, Δ3 420 224.14 0.04 274.7 425.0 13–14 Aug. 2013 0.1 9.67 (1.81)
15 → 14, Δ3 484 795.99 0.06 321.4 470.0 1–8 Jul. 2014 0.0 8.66 (1.50)
Herschel
48TiO 18 → 17, Δ1 569 537.72 0.13 400.3 258.2 19 Jul. 2010 0.7 <22.57
18 → 17, Δ2 575 979.23 0.13 396.5 400.4 19 Feb. 2010 0.3 <21.97
20 → 19, Δ3 646 070.05 0.26 436.2 609.6 20 Jul. 2010 0.7 <28.20
25 → 24, Δ3 807 067.03 0.75 549.9 787.7 4 Feb. 2010 0.2 <30.80
29 → 28, Δ3 935 619.31 1.48 640.2 958.1 10 Aug. 2011, 28 Jan. 2012b 0.9/0.4 <222.89
34 → 33, Δ3 1 095 946.06 2.98 752.8 1205.7 20 Jul. 2010 0.7 65.25 (18.31)
ALMA
50TiO 11 → 10, Δ1 344 722.34 >0.02 240.9 97.8 12–15 Jun. 2014 1.0 0.31 (0.02)
48TiO 21 → 20, Δ3 678 293.80 0.33 459.0 642.1 16 Jun. 2014 1.0 16.36 (1.00)
46TiO 11 → 10, Δ2 355 975.66 >0.02 239.8 240.2 21 Jul. 2015 0.2 0.54 (0.02)
47TiO 11 → 10, Δ3 357 526.69 >0.04 228.4 386.8 21 Jul. 2015 0.2 <0.33 (0.02)
48TiO 11 → 10, Δ3 355 623.35 0.04 227.2 386.2 21 Jul. 2015 0.2 4.44 (0.03)
50TiO 11 → 10, Δ1 344 722.34 >0.02 240.9 97.8 21 Jul. 2015 0.2 0.39 (0.02)

Notes. Spectroscopic data for e and f parity components were combined. The flux is given with a 1σ error in the parenthesis. Upper limits on flux have a 3σ significance.

(a)

The uncertainty of transition frequency expressed in velocity units; from CDMS.

(b)

Mapping observations. The examined spectrum is an average from two dates and located at an offset of 5.̋2 (or 0.24 the beam width) from the actual stellar position.

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