Table 2
Astrometry on HD 142527 B.
| Epoch | MJD | Separation(*) (mas) | Position angle(*)(deg) | ∆RA(mas) | ∆Dec (mas) | ρ(**) – | Instrument | Reference(***) |
|---|---|---|---|---|---|---|---|---|
| 2012-03-11 | 55 997 | 89.70 ± 2.60 | 133.10 ± 1.90 | 65.50 ± 10.79 | −61.29 ± 11.48 | 0.92 | NACO | Bl12 |
| 2013-03-17 | 56 368 | 82.00 ± 2.10 | 126.30 ± 1.60 | 66.09 ± 2.16 | −48.55 ± 2.22 | 0.08 | NACO | L16 |
| 2013-04-11 | 56 393 | 82.50 ± 1.01 | 127.98 ± 0.46 | 65.03 ± 0.89 | −50.77 ± 0.81 | −0.39 | VisAO | Ba22 |
| 2013-07-14 | 56 487 | 82.50 ± 1.10 | 123.80 ± 1.20 | 68.56 ± 1.32 | −45.89 ± 1.56 | 0.40 | NACO | L16 |
| 2014-04-08 | 56 755 | 77.73 ± 1.63 | 117.87 ± 0.96 | 68.71 ± 1.56 | −36.34 ± 1.39 | −0.18 | VisAO | Ba22 |
| 2014-04-25 | 56 772 | 88.25 ± 10.10 | 123.00 ± 9.20 | 74.01 ± 11.44 | −48.06 ± 13.03 | 0.30 | GPI | R14 |
| 2014-05-10 | 56 787 | 78.00 ± 1.80 | 119.10 ± 1.00 | 68.15 ± 1.71 | −37.93 ± 1.48 | −0.23 | SINFONI | Ch18 |
| 2014-05-12 | 56 789 | 77.20 ± 0.60 | 116.60 ± 0.50 | 69.03 ± 0.62 | −34.57 ± 0.66 | 0.09 | GPI | L16 |
| 2015-05-13 | 57 155 | – | – | 65.00 ± 2.00 | −24.00 ± 2.00 | – | SPHERE | C118 |
| 2015-05-15 | 57 157 | 70.16 ± 1.19 | 110.56 ± 0.80 | 65.69 ± 1.17 | −24.64 ± 1.01 | −0.12 | VisAO | Ba22 |
| 2015-05-16 | 57 158 | 72.19 ± 2.02 | 107.84 ± 0.97 | 68.72 ± 1.95 | −22.12 ± 1.32 | −0.29 | VisAO | Ba22 |
| 2015-05-18 | 57 160 | 70.00 ± 1.35 | 110.12 ± 0.72 | 65.73 ± 1.30 | −24.08 ± 0.95 | −0.28 | VisAO | Ba22 |
| 2015-07-03 | 57 206 | – | – | 62.90 ± 0.40 | −18.30 ± 0.50 | – | SPHERE/SAM | C118 |
| 2016-03-26 | 57 473 | – | – | 60.00 ± 2.00 | −7.00 ± 2.00 | – | SPHERE | Cl18 |
| 2016-03-31 | 57 478 | 62.80 ± 2.70 | 98.70 ± 1.80 | 62.08 ± 2.69 | −9.50 ± 2.00 | −0.10 | ZIMPOL | Cu19 |
| 2016-06-13 | 57 552 | – | – | 61.00 ± 2.00 | −7.00 ± 2.00 | – | SPHERE | Cl18 |
| 2017-05-03 | 57 876 | – | – | 49.67 ± 0.04 | 11.33 ± 0.08 | 0.50 | GRAVITY | This work |
| 2017-05-16 | 57 889 | – | – | 47.40 ± 0.50 | 10.30 ± 0.20 | – | SPHERE/SAM | Cl18 |
| 2018-02-17 | 58 166 | – | – | 38.07 ± 0.50 | 23.49 ± 0.28 | −0.79 | GRAVITY | This work |
| 2018-04-14 | 58 222 | – | – | 36.00 ± 1.00 | 25.00 ± 1.00 | – | SPHERE | Cl18 |
| 2018-04-27 | 58 235 | 43.69 ± 2.01 | 58.28 ± 1.76 | 37.16 ± 1.85 | 22.97 ± 1.55 | 0.35 | VisAO | Ba22 |
| 2018-07-25 | 58 324 | – | – | 29.70 ± 0.04 | 29.65 ± 0.08 | −0.43 | GRAVITY | This work |
| 2018-07-28 | 58 327 | – | – | 29.48 ± 0.02 | 29.51 ± 0.08 | −0.30 | GRAVITY | This work |
| 2019-04-28 | 58 601 | – | – | 12.59 ± 0.16 | 36.44 ± 0.10 | −0.93 | GRAVITY | This work |
| 2019-05-01 | 58 604 | – | – | 12.48 ± 0.15 | 36.53 ± 0.09 | −0.90 | GRAVITY | This work |
| 2021-01-08 | 59 222 | – | – | −27.77 ± 0.22 | 23.98 ± 0.05 | −0.49 | GRAVITY | This work |
Notes.(*) Different measurements made with different techniques and instruments are reported on two different bases: separation and position angle, or right-ascension (RA) and declination (Dec). For convenience, we have converted all values reported in separation/position angle to RA/Dec using an MCMC approach, but these values are treated on their original bases during our orbit fits.(**) When available, the correlation coefficient ρ is reported in addition to the error along the RA and Dec axes.(***) Sources: Ba22: Balmer et al. (2022) ; L16: Lacour et al. (2016); B112: Biller et al. (2012); R14: Rodigas et al. (2014); Ch18: Christiaens et al. (2018); Cl19: Claudi et al. (2019); Cu19: Cugno et al. (2019).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.