Table 3
VLT-SPHERE NIR apparent magnitudes of T Tauri Sa and Sb.
| Star | Filter | 9 Dec. 2014 | 18 Nov. 2016 | 30 Nov. 2017 | 14 Dec. 2018 |
|---|---|---|---|---|---|
| Sa | J | > 17.5 | 15.52 ± 0.06 | 16.07 ± 0.07 | |
| H | 12.35 ± 0.2 | 10.06 ± 0.06 | 11.14 ± 0.04 | 11.37 ± 0.05 | |
| K | 7.9 ± 0.1 | 8.14 ± 0.08 | 8.27 ± 0.04 | ||
| Sb | J | 13.3 ± 0.1 | 15.28 ± 0.07 | 16.3 ± 0.1 | |
| H | 10.8 ± 0.05 | 12.21 ± 0.3 | 12.17 ± 0.04 | 12.27 ± 0.1 | |
| K | 8.9 ± 0.1 | 10.5 ± 0.4 | 10.47 ± 0.25 |
Notes. The 2014 data were already published by Kasper et al. (2016) and based on IRDIS NB imaging and IFS. The central wavelengths for these data are 1.250, 1.575, and 2.217 μm for J, H, and K, respectively. The central wavelengths for the other observations slightly differ depending on the IRDIS filter and IFS, as given in Table 1.
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