Table 3.
Flux ratios and relative astrometric positions determined for each epoch of interferometric observations.
| Date | RJD | f | ρ (mas) | PA (°) | σa (mas) | σb (mas) | σPA (mas) | Instrument | Calibrator |
|---|---|---|---|---|---|---|---|---|---|
| 2012 Jun. 11 | 56090.0535 | 0.2016 ± 0.0014 | 3.790 | 131.82 | 0.0489 | 0.0129 | −30.8 | PIONIER | − |
| 2012 Jun. 14 | 56093.1194 | 0.1839 ± 0.0042 | 3.709 | 133.28 | 0.0112 | 0.0082 | −36.7 | PIONIER | − |
| 2012 Jun. 14 | 56093.1347 | 0.1702 ± 0.0064 | 3.728 | 134.33 | 0.0279 | 0.0132 | −0.8 | PIONIER | − |
| 2014 Jul. 29 | 56867.9809 | 0.2070 ± 0.0033 | 14.406 | −108.64 | 0.0291 | 0.0192 | −33.3 | PIONIER | 1 |
| 2016 Jul. 28 | 57598.0239 | 0.2368 ± 0.0024 | 5.546 | 103.65 | 0.0088 | 0.0079 | −5.5 | PIONIER | 1 |
| 2017 Mar. 12 | 57825.3668 | 0.1997 ± 0.0029 | 4.063 | −164.06 | 0.0188 | 0.0081 | −80.6 | GRAVITY | 2 |
| 2017 Apr. 27 | 57871.3095 | 0.2006 ± 0.0015 | 4.886 | −149.95 | 0.0084 | 0.0051 | 40.8 | GRAVITY | 2 |
| 2017 Apr. 28 | 57872.1865 | 0.1969 ± 0.0013 | 4.964 | −149.77 | 0.0163 | 0.0061 | 12.2 | PIONIER | 1 |
| 2017 Apr. 30 | 57874.2998 | 0.1856 ± 0.0045 | 4.937 | −148.35 | 0.0280 | 0.0263 | 66.2 | GRAVITY | 2 |
| 2017 Jun. 21 | 57926.0002 | 0.2420 ± 0.0490 | 6.129 | −138.41 | 0.0927 | 0.0425 | −18.3 | PIONIER | 1 |
| 2018 Apr. 18 | 58227.1445 | 0.1946 ± 0.0015 | 12.505 | −116.54 | 0.0213 | 0.0095 | −41.8 | PIONIER | 1 |
| 2022 Apr. 05 | 59675.1312 | 0.1899 ± 0.0077 | 9.563 | −124.21 | 0.0470 | 0.0115 | −48.9 | PIONIER | 3,4 |
Notes. f is the flux ratio of the third star and the inner binary, ρ is the angular separation of the tertiary from the binary, PA is the position angle (measured from north towards east), σa and σb are the major and minor axis of the error ellipse and σPA is the position angle of the error ellipse major axis. The three observations in 2012 were done in telescope configuration K0-A1-G1-I1, the observation in 2014 was done in K0-A1-G1-J3 and the rest used configuration A0-G1-J2-J3 (all corresponding to ‘Large’ configuration of the VLTI AT array). We were unable to find the calibrators of the first three observations. Detailed information about the rest of the calibrators is in Table 4.
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.