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Table 2
List of transitions considered in the line radiative transfer.
| Species | Transition | λ [μm] | Tex [K] | A (s-1) | Coll. partner | Region | Ref. |
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| O | 3P1–3P2 | 63 | 230 | 8.91 × 10-5 | H2, H, H+, e− | 20–200 AU | 1, 2, 3, 4 |
| O | 3P0–3P1 | 145 | 326 | 1.75 × 10-5 | H2, H, e− | 20–200 AU | 1, 2, 3, 4 |
| C+ | 2P1/2–2P3/2 | 157 | 91 | 2.30 × 10-6 | H2, H, e− | Outer Disk | 1, 2 |
| Ne+ | 2P1/2–2P3/2 | 12.8 | 1122 | 8.59 × 10-3 | H, e− | Inner Disk | 5, 6 |
| Ne2+ | 3P1–3P2 | 15.5 | 925 | 5.97 × 10-3 | H | Inner Disk | 5, 6 |
| Ar+ | 2P1/2–2P3/2 | 6.9 | 2060 | 5.30 × 10-2 | H | Inner Disk | 7 |
| o-H2O | 212 → 101 | 179 | 114 | 5.59 × 10-2 | H2, H | Outer disk | 1, 8 |
| o-H2O | 818 → 707 | 63.3 | 1071 | 1.751 | H2, H | Hot belt | 1, 8 |
| o-H2O | 845 → 716 | 23.9 | 1615 | 1.05 | H2, H | Inner wall | 1, 8 |
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