Table 3
IRDIS Relative astrometry and photometry of HD 95086 A and b.
| UT Date | Ins-filter | Δ α | Δ δ | Sep. | PA | Contrast | True north | Platescale | Ref. |
|---|---|---|---|---|---|---|---|---|---|
| (mas) | (mas) | (mas) | (°) | (mag) | (deg) | (mas) | |||
| 12-01-2012 | NaCo-L ′ | 294 ± 8 | − 550 ± 8 | 624 ± 8 | 151.9 ± 0.8 | 9.8 ± 0.4 | − 0.57 ± 0.10 | 27.11 ± 0.06 | 1 |
| 14-03-2013 | NaCo-L ′ | 305 ± 13 | − 546 ± 13 | 626 ± 13 | 150.8 ± 1.3 | 9.7 ± 0.6 | − 0.58 ± 0.10 | 27.10 ± 0.03 | 1 |
| 27-06-2013 | NaCo-L ′ | 291 ± 8 | − 525 ± 8 | 600 ± 11 | 151.0 ± 1.2 | 9.2 ± 0.8 | − 0.65 ± 0.10 | 27.10 ± 0.04 | 1 |
| 10-12-2013 | GPI-K1 | 301 ± 5 | − 541 ± 5 | 619 ± 5 | 150.9 ± 0.5 | 12.1 ± 0.5 | − 0.10 ± 0.13 | 14.166 ± 0.007 | 2,3 |
| 11-12-2013 | GPI-H | 306 ± 11 | − 537 ± 11 | 618 ± 11 | 150.3 ± 1.1 | 13.1 ± 0.9 | − 0.10 ± 0.13 | 14.166 ± 0.007 | 2,3 |
| 13-05-2014 | GPI-K1 | 307 ± 8 | − 536 ± 8 | 618 ± 8 | 150.2 ± 0.7 | – | − 0.10 ± 0.13 | 14.166 ± 0.007 | 3 |
| 06-04-2015 | GPI-K1 | 322 ± 7 | − 532 ± 7 | 622 ± 7 | 148.8 ± 0.6 | – | − 0.10 ± 0.13 | 14.166 ± 0.007 | 3 |
| 08-04-2015 | GPI-K1 | 320 ± 4 | − 533 ± 4 | 622 ± 4 | 149.0 ± 0.4 | 12.2 ± 0.2 | − 0.10 ± 0.13 | 14.166 ± 0.007 | 3,4 |
| 29-02-2016 | GPI-H | 330 ± 5 | − 525 ± 5 | 621 ± 5 | 147.8 ± 0.5 | 13.7 ± 0.2 | − 0.10 ± 0.13 | 14.166 ± 0.007 | 3,4 |
| 06-03-2016 | GPI-H | 336 ± 3 | − 521 ± 3 | 620 ± 5 | 147.2 ± 0.5 | – | − 0.10 ± 0.13 | 12.166 ± 0.007 | 3 |
| 03-02-2015 | IRDIS-K1 | 322 ± 4 | − 532 ± 4 | 622 ± 4 | 148.8 ± 0.4 | 12.2 ± 0.1 | 1.75 ± 0.10 | 12.26 ± 0.01 | 5 |
| 03-02-2015 | IRDIS-K2 | 319 ± 5 | − 532 ± 5 | 620 ± 5 | 149.0 ± 0.5 | 11.8 ± 0.2 | 1.75 ± 0.10 | 12.26 ± 0.01 | 5 |
| 05-05-2015 | IRDIS-K1 | 324 ± 7 | − 531 ± 7 | 622 ± 7 | 148.6 ± 0.6 | 12.4 ± 0.3 | 1.75 ± 0.10 | 12.26 ± 0.01 | 5 |
| 05-05-2015 | IRDIS-K2 | 322 ± 8 | − 530 ± 8 | 620 ± 8 | 148.7 ± 0.6 | 12.0 ± 0.3 | 1.75 ± 0.10 | 12.26 ± 0.01 | 5 |
| 18-01-2016 | IRDIS-K1 | 327 ± 8 | − 531 ± 8 | 624 ± 8 | 148.4 ± 0.7 | 12.2 ± 0.4 | 1.74 ± 0.10 | 12.26 ± 0.01 | 5 |
| 18-01-2016 | IRDIS-K2 | 326 ± 10 | − 534 ± 10 | 626 ± 10 | 148.6 ± 0.9 | 11.9 ± 0.4 | 1.74 ± 0.10 | 12.26 ± 0.01 | 5 |
| 31-05-2016 | IRDIS-K1 | 334 ± 3 | − 525 ± 3 | 622 ± 3 | 147.5 ± 0.3 | 12.3 ± 0.2 | 1.72 ± 0.10 | 12.26 ± 0.01 | 5 |
| 31-05-2016 | IRDIS-K2 | 332 ± 4 | − 523 ± 4 | 620 ± 4 | 147.6 ± 0.4 | 11.8 ± 0.2 | 1.72 ± 0.10 | 12.26 ± 0.01 | 5 |
| 10-05-2017 | IRDIS-K1 | 343 ± 3 | − 521 ± 3 | 624 ± 3 | 146.6 ± 0.3 | 12.3 ± 0.2 | 1.78 ± 0.10 | 12.26 ± 0.01 | 5 |
| 10-05-2017 | IRDIS-K2 | 343 ± 4 | − 524 ± 4 | 626 ± 4 | 146.8 ± 0.4 | 12.3 ± 0.2 | 1.78 ± 0.10 | 12.26 ± 0.01 | 5 |
Notes. (1) Astrometric and photometric results from Rameau et al. (2013b) with the true north recalibrated on the 47 Tuc SHINE reference field (+ 0.2±0.1°) and the proper motion and precession correction applied for the parallactic angle calculation (− 0.15±0.05°). See Appendix A. (2, 3) Astrometric results processed by Rameau et al. (2016) and photometric results from Galicher et al. (2014), respectively.(4) Photometric results reported by De Rosa et al. (2016). (5) This work. Plate scale and true north from Maire et al. (2016) (considering that Maire et al. 2016 report the IRDIS true north correction and not the true north).
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