Table 2.
Outliers in the rotation diagrams.
| Maser candidate | τ(a) | Blended (b) | Maser (c) | Location (d) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Transition | ν [GHz] | A/E | Class | Eup/k [K] | Aij [s−1] | [×10−4] | Transition | ν [GHz] | A/E | Eup/k [K] | Aij [s−1] | [K] | |
| 5−1 → 40 | 84.521172 | E | I | 32.49 | 1.97 × 10−6 | −236.6 | 1210 → 1211 | 84.531123 | E | 1085.97 | 7.72 × 10−7 | Yes | 1,2,7–10 |
| 21 → 11 | 95.914310 | A+ | – | 21.44 | 2.49 × 10−6 | 12.5 | Not-blended | – | – | – | – | No | |
| 21 → 11 | 97.582798 | A− | – | 21.56 | 2.63 × 10−6 | 3.8 | Not-blended | – | – | – | – | No | |
| 6−1 → 50 | 132.890759 | E | I | 46.41 | 7.74 × 10−6 | −67.7 | Not-blended | – | – | – | – | Yes | 1,2,7–10 |
| 31 → 21 | 143.865795 | A+ | – | 28.35 | 1.07 × 10−5 | 7.8 | Not-blended | – | – | – | – | No | |
| 31 → 21 | 146.368328 | A− | – | 28.59 | 1.13 × 10−5 | 6.5 | Not-blended | – | – | – | – | No | |
| 90 → 81 | 146.618697 | A+ | I | 104.41 | 8.03 × 10−6 | −0.1 | 141 → 132 | 146.617429 | A+ | 256.02 | 6.6 × 10−6 | Yes | 1,7–9 |
| 21 → 30 | 156.602395 | A+ | – | 21.44 | 1.78 × 10−5 | 162.3 | Not-blended | – | – | – | – | No | |
| 100 → 91 | 198.403067 | A+ | I | 127.60 | 4.10 × 10−5 | −0.01 | Not-blended | – | – | – | – | Yes | 3,6,7 |
| 8−1 → 70 | 229.758756 | E | I | 81.20 | 4.19 × 10−5 | −2.1 | Not-blended | – | – | – | – | Yes | 2,7–9 |
| 2−1 → 1−0 | 261.805675 | E | – | 28.01 | 5.57 × 10−5 | 402.3 | 205 → 213 | 261.800288 | E | 611.06 | 9.85 × 10−9 | No | |
| 62 → 51 | 315.266861 | E | – | 63.10 | 1.18 × 10−4 | 6.7 | 37−6 → 36−7 | 315.237555 | E | 1808.32 | 5.73 × 10−5 | No | |
| 81 → 80 | 318.318919 | A−+ | II (e) | 98.82 | 1.79 × 10−4 | 1.5 | Not-blended | – | – | – | – | No | |
| 7−0 → 6−0 | 338.124488 | E | – | 78.08 | 1.70 × 10−4 | 10.9 | 3812 → 3710 | 338.117653 | E | 2425.29 | 7.38 × 10−8 | No | |
| 4−0 → 31 | 350.687662 | E | – | 36.33 | 8.67 × 10−5 | 1205.0 | 18−3 → 18−2 | 350.723878 | E | 812.46 | 4.17 × 10−5 | No | |
| 41 → 30 | 358.605799 | E | – | 44.26 | 1.32 × 10−4 | 224.1 | Not-blended | – | – | – | – | No | |
| 72 → 61 | 363.739868 | E | – | 79.36 | 1.70 × 10−4 | 1.7 | 236 → 229 | 363.680652 | E | 1327.80 | 1.78 × 10−7 | No |
Notes.
Optical depth according to our non-LTE model of region 8 (see Appendix C).
Maser candidates based on the discussion in Sect. 4.1.1.
According to the classification of the J1 − J0A−+ line series in Zinchenko et al. (2017). The dash (–) symbol indicates no information/detection. For more information about the columns see Sect. 4.1.
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