Table 4
CO line strengths 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.
| Star | CO J36-35 | CO J33-32 | CO J29-28 | CO J18-17 |
| λ (μm) | 72.85 | 79.36 | 90.16 | 144.78 |
|
|
||||
| AB Aur | < 37.9 | < 33.4 | 31.0 (4.3) | 26.6 (8.8) |
| HD 31648 | < 9.6 | < 16.3 | < 9.6 | 6.9 (2.3) |
| HD 35187 | < 21.0 | < 28.9 | < 8.4 | < 5.5 |
| HD 36112 | < 30.2 | < 17.6 | < 17.7 | 6.6 (1.1) |
| CQ Tau | < 15.4 | < 25.4 | < 9.9 | 5.9 (1.5) |
| HD 97048 | < 21.3 | < 16.6 | 15.3: (6.0) | 28.5 (2.6) |
| HD 100453 | < 13.9 | < 19.5 | < 9.6 | < 8.3 |
| HD 100546 | < 28.7 | < 38.8 | 49.3 (16.1) | 58.0 (3.3) |
| HD 104237 | < 19.6 | < 16.1 | < 9.8 | < 5.6 |
| HD 135344B | < 13.0 | < 21.7 | < 8.5 | < 8.4 |
| HD 139614 | < 16.4 | < 19.9 | < 9.0 | < 6.9 |
| HD 141569A | < 12.3 | < 10.6 | < 6.6 | < 3.4 |
| HD 142527 | < 30.9 | < 23.7 | < 12.4 | < 9.8 |
| HD 142666 | < 16.3 | < 18.8 | < 12.6 | < 6.2 |
| HD 144668 | < 11.9 | < 12.1 | < 8.2 | 5.6 (1.3) |
| HD 150193 | < 14.8 | < 13.1 | < 7.2 | < 6.2 |
| KK Oph | < 6.5 | < 9.4 | < 7.7 | 6.9 (1.3) |
| 51 Oph | < 9.0 | < 12.4 | < 6.6 | < 4.0 |
| HD 163296 | < 8.0 | < 10.7 | < 7.9 | 11.6 (1.5) |
| HD 169142 | < 10.0 | < 10.9 | < 10.0 | 5.1: (1.7) |
|
|
||||
| 49 Cet | < 13.6 | < 18.6 | < 9.8 | < 6.7 |
| HD 32297 | < 11.4 | < 16.9 | < 9.7 | < 4.3 |
| HR 1998 | < 12.6 | < 13.5 | < 6.6 | < 4.8 |
| HR 4796A | < 12.8 | < 17.1 | < 7.6 | < 4.1 |
| HD 158352 | n.a. | < 9.2 | n.a. | n.a. |
Notes. With “:”, we indicate that the feature is between 2σ and 3σ. For HD 158352, not all settings were observed, therefore we write “n.a.” (not available) when the spectrum is lacking.
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