Table 4
Log of the VISIR spectroscopy.
| Target | R | λc | Orient. | Time | Airmass | Seeing | Int. time |
| [μm] | [°] | [h:m] | [″] | [s] | |||
|
|
|||||||
| HD 142527 | LR | 8.8 | 0 | 05:58 | 1.05 | 0.76 | 644 |
| HD 142527 | LR | 9.8 | 0 | 06:13 | 1.05 | 0.76 | 644 |
| HD 139127 | LR | 8.8 | 0 | 06:38 | 1.07 | 0.67 | 91 |
| HD 139127 | LR | 9.8 | 0 | 06:42 | 1.07 | 0.60 | 91 |
| HD 139127 | LR | 11.4 | 0 | 06:45 | 1.07 | 0.61 | 91 |
| HD 142527 | LR | 11.4 | 0 | 07:01 | 1.07 | 0.67 | 644 |
| HD 142527 | LR | 12.4 | 0 | 07:17 | 1.09 | 0.67 | 517 |
| HD 139127 | LR | 12.4 | 0 | 07:40 | 1.14 | 0.73 | 97 |
|
|
|||||||
| HD 142527 | MR | 18.18 | 113 | 03:10 | 1.11 | 1.19 | 1846 |
| HD 142527 | MR | 17.82 | 113 | 03:52 | 1.18 | 1.40 | 1846 |
| HD 148478 | MR | 18.18 | 0 | 05:17 | 1.25 | 0.86 | 159 |
| HD 148478 | MR | 17.82 | 0 | 05:23 | 1.27 | 0.83 | 159 |
Notes. The entries are ordered according to observation time. The columns from left to right give the target name, the spectral resolution (low/medium), the central wavelength, the orientation of the slit (rotating from north to west), the time of observation, the airmass and optical seeing, and the effective integration time.
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