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Table 1.
Log of the VISIR observations with our photometric measurements.
| Star | MJD | Seeing | Airmass | Flux ±σstat ± σsys | mag ±σstat ± σsys | Cal. | Rej. |
|---|---|---|---|---|---|---|---|
| (″) | (×10−14 W m−2 μm−1) | ||||||
| PAH1 filter (8.59 μm) | |||||||
| FM Aql | 57548.2671 | 0.81 | 1.23 | 2.04 ± 0.04 ± 0.10 | 5.036 ± 0.022 ± 0.054 | HD 186791 | x |
| FN Aql | 57548.2763 | 1.06 | 1.14 | 1.28 ± 0.06 ± 0.06 | 5.541 ± 0.051 ± 0.054 | HD 187642 | x |
| SZ Aql | 57548.2841 | 1.32 | 1.11 | 2.15 ± 0.05 ± 0.11 | 4.979 ± 0.023 ± 0.054 | HD 184406 | |
| TT Aql | 57548.2918 | 1.36 | 1.12 | 5.70 ± 0.05 ± 0.29 | 3.921 ± 0.010 ± 0.054 | HD 184406 | |
| U Car | 57521.0494 | 0.73 | 1.24 | 10.82 ± 0.04 ± 0.54 | 3.225 ± 0.004 ± 0.054 | HD 89388 | |
| V Car | 57521.9799 | 0.91 | 1.31 | 1.90 ± 0.03 ± 0.10 | 5.091 ± 0.018 ± 0.054 | HD 65662 | |
| VY Car | 57521.0390 | 1.08 | 1.21 | 2.41 ± 0.03 ± 0.12 | 4.857 ± 0.014 ± 0.054 | HD 89682 | |
| V Cen | 57521.2004 | 0.59 | 1.21 | 3.85 ± 0.03 ± 0.19 | 4.347 ± 0.009 ± 0.054 | HD 119193 | |
| XX Cen | 57505.1804 | 0.75 | 1.20 | 1.42 ± 0.03 ± 0.07 | 5.429 ± 0.023 ± 0.054 | HD 119193 | |
| β Dor | 57653.3566 | 0.37 | 1.33 | 38.42 ± 0.1 ± 1.92 | 1.849 ± 0.003 ± 0.054 | HD 42540 | |
| T Mon | 57727.1799 | 0.62 | 1.34 | 8.29 ± 0.04 ± 0.42 | 3.514 ± 0.005 ± 0.054 | HD 49293 | |
| RY Sco | 57520.3837 | 1.52 | 1.13 | 7.03 ± 0.04 ± 0.35 | 3.693 ± 0.006 ± 0.054 | HD 168592 | |
| BB Sgr | 57548.2579 | 0.83 | 1.00 | 3.66 ± 0.04 ± 0.18 | 4.401 ± 0.012 ± 0.054 | HD 175775 | |
| U Sgr | 57548.2369 | 1.00 | 1.01 | 6.18 ± 0.05 ± 0.31 | 3.833 ± 0.008 ± 0.054 | HD 175775 | |
| WZ Sgr | 57548.2474 | 1.23 | 1.01 | 3.53 ± 0.05 ± 0.18 | 4.441 ± 0.015 ± 0.054 | HD 169916 | |
| ST Tau | 57704.3532 | 0.95 | 1.39 | 1.39 ± 0.07 ± 0.07 | 5.454 ± 0.025 ± 0.054 | HD 37160 | |
| SZ Tau | 57629.3579 | 0.70 | 1.69 | 4.91 ± 0.05 ± 0.25 | 4.083 ± 0.023 ± 0.054 | HD 28305 | |
| RY Vel | 57521.0286 | 0.79 | 1.19 | 2.76 ± 0.03 ± 0.14 | 4.708 ± 0.012 ± 0.054 | HD 89682 | |
| RZ Vel | 57521.0163 | 0.60 | 1.23 | 4.91 ± 0.04 ± 0.25 | 4.084 ± 0.008 ± 0.054 | HD 67582 | |
| T Vel | 57521.9906 | 0.59 | 1.21 | 1.26 ± 0.03 ± 0.06 | 5.561 ± 0.027 ± 0.054 | HD 67582 | |
| PAH2 filter (11.25 μm) | |||||||
| FM Aql | 57570.1765 | 0.94 | 1.27 | 0.94 ± 0.02 ± 0.05 | 4.722 ± 0.027 ± 0.054 | HD 186791 | |
| FN Aql | 57570.2058 | 0.83 | 1.14 | 0.86 ± 0.02 ± 0.04 | 4.820 ± 0.028 ± 0.054 | HD 187642 | |
| SZ Aql | 57570.1860 | 1.18 | 1.13 | 0.61 ± 0.02 ± 0.03 | 5.187 ± 0.029 ± 0.054 | HD 184406 | x |
| TT Aql | 57570.1957 | 0.76 | 1.12 | 2.69 ± 0.02 ± 0.13 | 3.579 ± 0.008 ± 0.054 | HD 184406 | x |
| U Car | 57522.0398 | 0.73 | 1.24 | 3.78 ± 0.02 ± 0.19 | 3.208 ± 0.005 ± 0.054 | HD 89388 | |
| V Car | 57729.3141 | 1.36 | 1.24 | 0.60 ± 0.01 ± 0.03 | 5.213 ± 0.026 ± 0.054 | HD 65662 | |
| VY Car | 57522.0295 | 0.74 | 1.21 | 0.96 ± 0.01 ± 0.05 | 4.700 ± 0.015 ± 0.054 | HD 89682 | |
| V Cen | 57522.0587 | 0.94 | 1.33 | 1.49 ± 0.02 ± 0.07 | 4.22 ± 0.011 ± 0.054 | HD 119193 | |
| XX Cen | 57522.0493 | 0.96 | 1.27 | 0.64 ± 0.01 ± 0.03 | 5.132 ± 0.023 ± 0.054 | HD 119193 | |
| β Dor | 57653.3528 | 0.34 | 1.33 | 13.94 ± 0.04 ± 0.70 | 1.791 ± 0.003 ± 0.054 | HD 42540 | |
| T Mon | 57727.1897 | 0.71 | 1.29 | 2.80 ± 0.02 ± 0.14 | 3.534 ± 0.006 ± 0.054 | HD 49293 | |
| RY Sco | 57520.3936 | 1.61 | 1.17 | 2.38 ± 0.02 ± 0.12 | 3.709 ± 0.007 ± 0.054 | HD 168592 | |
| BB Sgr | 57570.2162 | 0.86 | 1.00 | 1.33 ± 0.01 ± 0.07 | 4.343 ± 0.011 ± 0.054 | HD 175775 | |
| U Sgr | 57520.4123 | 1.09 | 1.14 | 2.39 ± 0.02 ± 0.12 | 3.706 ± 0.007 ± 0.054 | HD 175775 | |
| WZ Sgr | 57520.4029 | 1.44 | 1.14 | 1.58 ± 0.02 ± 0.08 | 4.156 ± 0.010 ± 0.054 | HD 169916 | |
| ST Tau | 57704.3424 | 0.96 | 1.35 | 0.27 ± 0.02 ± 0.01 | 6.075 ± 0.059 ± 0.054 | HD 37160 | |
| SZ Tau | 57640.3975 | 0.87 | 1.39 | 1.66 ± 0.02 ± 0.08 | 4.101 ± 0.010 ± 0.054 | HD 28305 | |
| RY Vel | 57522.0213 | 0.79 | 1.19 | 2.76 ± 0.01 ± 0.14 | 4.708 ± 0.015 ± 0.054 | HD 89682 | |
| RZ Vel | 57522.0019 | 0.62 | 1.19 | 0.95 ± 0.02 ± 0.05 | 4.713 ± 0.010 ± 0.054 | HD 67582 | |
| T Vel | 57522.0124 | 0.92 | 1.25 | 0.45 ± 0.01 ± 0.02 | 5.520 ± 0.031 ± 0.054 | HD 67582 | |
Notes. Seeing is given at the visible wavelength (λ = 0.5 μm). “Cal.” denotes the calibrator star we used for the absolute flux calibration. “rej.” refers to our photometry we rejected (see Sect. 3).
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