Table 6
Molecular line strengths of H2O, hydroxyl, and CH+ for the sources with at least one detection in these lines.
| Star | o-H2O | o-H2O | CH+ | o-H2O | OH | OH | CH+/p-H2O | CH+/o-H2O | o-H2O |
| λ (μm) | 63.32 | 71.946 | 72.14 | 78.74 | 79.11 | 79.18 | 90.00 | 179.52 | 180.42 |
| Eup (K) | 1071.0 | 843.5 | – | 432.2 | – | – | 296.8 | 114.4 | 194.1 |
|
|
|||||||||
| AB Aur | < 29.8 | < 19.0 | < 36.7 | < 26.5 | 24.6: (7.9) | < 24.8 | < 18.4 | < 13.5 | < 8.2 |
| HD 31648 | 9.8: (2.2) | < 12.4 | < 21.6 | < 17.7 | < 9.9 | < 10.3 | < 9.1 | < 7.5 | < 5.9 |
| HD 97048 | < 16.4 | < 16.8 | < 18.6 | < 18.2 | < 17.0 | < 18.9 | 17.4 (4.9) | < 18.3 | < 13.8 |
| HD 100546 | < 25.9 | < 50.9 | 127.5 (17.0) | < 57.0 | < 41.9 | < 42.1 | 116.0 (16.1) | 30.5 (4.8) | < 17.1 |
| HD 163296 | 14.2: (4.4) | 16.5 (5.3) | < 19.9 | 10.2: (4.1) | 11.4 (3.4) | < 9.1 | 4.7: (1.9) | < 10.4 | < 6.2 |
Notes. Line flux in units of 10-18 W/m2, 1σ continuum rms between brackets in the case of a detection, or, in the case of a non-detection, 3σ upper limits. With “:”, we indicate that the feature is between 2σ and 3σ. At 90 μm and 179.5 μm, there is a possible blend of CH+ and H2O. For the water lines, we also give the upper energy level in K.
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