Table 2
Properties of detected forsterite bands and upper limits for nondetections.
| Star | Peak | FWHM | Flux | σ | Probability |
| [μm] | [μm] | 10-16 [W/m2] | for χ2 [%] | ||
|
|
|||||
| Detections | |||||
| AB Aur | 69.957 ± 0.018 | 0.509 ± 0.063 | 10.14 ± 0.90 | 11.2 | 0 |
| HD 100546 | 69.194 ± 0.004 | 0.681 ± 0.015 | 94.60 ± 1.27 | 74.6 | 0 |
| HD 104237 | 69.224 ± 0.012 | 0.351 ± 0.038 | 2.14 ± 0.21 | 9.8 | 0 |
| HD 141569 | 69.303 ± 0.021 | 0.600 ± 0.092 | 6.32 ± 0.49 | 12.9 | 0 |
| HD 179218 | 69.196 ± 0.005 | 0.502 ± 0.020 | 7.33 ± 0.18 | 39.7 | 0 |
| HD 144668 | 69.088 ± 0.014 | 0.599 ± 0.057 | 2.60 ± 0.13 | 19.8 | 0 |
| IRS 48 | 69.168 ± 0.007 | 0.521 ± 0.025 | 6.11 ± 0.21 | 28.9 | 0 |
| AS 205 | 68.745 ± 0.017 | 0.595 ± 0.085 | 4.59 ± 0.29 | 15.6 | 0 |
|
|
|||||
| False positives | |||||
| DG Tau | 69.187 ± 0.038 | 0.506 ± 0.153 | 2.21 ± 0.39 | 5.6 | 100 |
| HD 100453 | 69.427 ± 0.043 | 0.749 ± 0.157 | 2.93 ± 0.34 | 8.6 | 100 |
| HD 203024 | 69.466 ± 0.043 | 0.712 ± 0.204 | 3.26 ± 0.41 | 8.0 | 100 |
| HD 35187 | 68.605 ± 0.039 | 0.695 ± 0.153 | 1.98 ± 0.23 | 8.5 | 100 |
| HT Lup | 69.723 ± 0.016 | 0.285 ± 0.056 | 3.33 ± 0.61 | 5.5 | 100 |
| SR 21 | 69.390 ± 0.025 | 0.510 ± 0.101 | 2.60 ± 0.31 | 8.4 | 94 |
|
|
|||||
| Non-detections (upper limits) | |||||
| HD 144432 | 0.84 ± 0.27 | 3.1 | 100 | ||
| HD 97048 | 1.96 ± 0.63 | 3.1 | 100 | ||
| HD 36112 | 0.72 ± 0.23 | 3.1 | 100 | ||
| HD 142666 | 6.53 ± 2.11 | 3.1 | 100 | ||
| HD 163296 | 0.82 ± 0.26 | 3.1 | 100 | ||
| HD 50138 | 2.08 ± 0.67 | 3.1 | 100 | ||
| HD 150193 | 0.67 ± 0.22 | 3.1 | 100 | ||
| HD 135344B | 1.12 ± 0.36 | 3.1 | 100 | ||
| HD 169142 | 1.73 ± 0.56 | 3.1 | 100 | ||
| S CrA | 1.21 ± 0.39 | 3.1 | 100 | ||
| HD 139614 | 0.75 ± 0.24 | 3.1 | 100 | ||
| HD 98922 | 1.15 ± 0.37 | 3.1 | 100 | ||
| RNO 90 | 1.06 ± 0.34 | 3.1 | 100 | ||
| RU Lup | 0.90 ± 0.29 | 3.1 | 100 | ||
| RY Lup | 0.98 ± 0.32 | 3.1 | 100 | ||
| EC 82 | 5.09 ± 1.64 | 3.1 | 100 | ||
| HD 38120 | 0.60 ± 0.19 | 3.1 | 100 | ||
| HD 142527 | 2.67 ± 0.86 | 3.1 | 100 | ||
Notes.Description: fitted-band centre position, FWHM, flux and flux/uncertainty as well as the probability of finding a value in a χ2 distribution greater than or equal to the one found for comparing the Lorentzian to the noise in the residuals (see description in the text). The limits for the parameters of the Lorentzian were as follows: 68 μm < Peak < 71 μm, FWHM < 1.5 μm and 10-30 W/m2< flux. The first part of the table lists the firm detections. In the second part all sources with an emission band that has a formal significance of more than three σ but are rejected for various reasons (see text for a discussion) are shown. The third part contains all sources where no band could be fitted and we present upper limits instead.
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