Free Access
Table 4
Maximum likelihood estimate and MCMC median and 1σ credible intervals for the fitted and derived parameters.
| Property | Unit | HIPPARCOS only | HIPPARCOS, Gaia pos. | HIPPARCOS, Gaia p.m. | HIPPARCOS, Gaia pos. and p.m. | ||||
|---|---|---|---|---|---|---|---|---|---|
 |
MCMC |  |
MCMC |  |
MCMC |  |
MCMC | ||
| Spectroscopic parameters | |||||||||
| P | d | 2089.14 |  |
2089.14 |  |
2089.14 |  |
2089.11 |  |
| K1 | ms−1 | 193.71 | 193.71 ± 0.33 | 193.71 | 193.71 ± 0.33 | 193.71 | 193.71 ± 0.33 | 193.70 | 193.70 ± 0.33 |
 |
– | 0.7034 | 0.7034 ± 0.0014 | 0.7034 | 0.7034 ± 0.0014 | 0.7034 | 0.7034 ± 0.0014 | 0.7034 | 0.7034 ± 0.0014 |
 |
– | − 0.3877 |  |
− 0.3877 |  |
− 0.3877 |  |
− 0.3876 |  |
| τ | – | 0.53760 |  |
0.53760 |  |
0.53760 |  |
0.53764 |  |
| γ1991.25 | ms−1 | 10700.25 | 10700.24 ± 0.33 | 10700.24 | 10700.25 ± 0.33 | 10700.25 | 10700.25 ± 0.33 | 10700.23 | 10700.23 ± 0.33 |
| ΔvH2 | ms−1 | − 16.79 |  |
− 16.79 |  |
− 16.79 |  |
− 16.78 |  |
| ΔvU | ms−1 | 10675.32 |  |
10675.32 | 10675.32 ± 0.76 | 10675.32 | 10675.32 ± 0.76 | 10675.32 | 10675.32 ± 0.76 |
| ɛH1 | ms−1 | 3.12 |  |
3.12 |  |
3.12 |  |
3.12 |  |
| ɛH2 | ms−1 | 2.00 |  |
2.00 |  |
2.00 |  |
2.00 |  |
| ɛU | ms−1 | 5.54 |  |
5.54 |  |
5.54 |  |
5.55 |  |
| ɛHIP | mas | 0.83 |  |
0.84 |  |
0.84 |  |
0.87 |  |
| Astrometric parameters | |||||||||
| cos i | – | 0.70 |  |
0.56 |  |
0.72 |  |
0.66 |  |
| Ω | deg | 253.5 |  |
252.7 |  |
255.1 |  |
269.8 |  |
| M1 | M⊙ | 1.094 | 1.094 ± 0.039 | 1.094 | 1.094 ± 0.039 | 1.094 | 1.094 ± 0.039 | 1.094 | 1.094 ± 0.039 |
| Δα⋆ | mas | − 0.51 |  |
− 0.48 | − 0.49 ± 0.28 | − 0.55 |  |
− 0.78 |  |
| Δδ | mas | − 1.48 |  |
− 1.08 |  |
− 1.55 | − 1.44 ± 0.32 | − 1.12 | − 1.07 ± 0.27 |
| Δϖ | mas | 0.23 |  |
0.22 | 0.23 ± 0.23 | 0.22 | 0.22 ± 0.24 | 0.08 | 0.10 ± 0.23 |
 |
masyr−1 | − 1.37 |  |
− 1.18 | − 1.18 ± 0.02 | − 1.45 | − 1.38 ± 0.18 | − 1.20 | − 1.20 ± 0.02 |
| Δμδ | masyr−1 | − 1.11 |  |
− 0.80 | − 0.80 ± 0.02 | − 1.15 | − 1.16 ± 0.21 | − 0.79 | − 0.78 ± 0.02 |
| Derived parameters | |||||||||
| a | au | 3.309 | 3.307 ± 0.039 | 3.307 | 3.307 ± 0.039 | 3.309 | 3.309 ± 0.039 | 3.309 | 3.308 ± 0.039 |
| i | deg | 45.9 |  |
55.8 |  |
44.2 |  |
48.7 |  |
| e | – | 0.6451 | 0.6450 ± 0.0011 | 0.6451 | 0.6450 ± 0.0011 | 0.6451 | 0.6450 ± 0.0011 | 0.6450 | 0.6450 ± 0.0011 |
| ω⋆ | deg | 331.14 | 331.14 ± 0.24 | 331.14 | 331.14 ± 0.24 | 331.14 | 331.14 ± 0.24 | 331.15 |  |
| T0 | MJD | 52123.11 |  |
52123.11 |  |
52123.12 |  |
52123.19 |  |
| M2 | MJup | 13.87 |  |
12.04 |  |
14.29 |  |
13.26 |  |
| Goodness of fit | |||||||||
 |
– | 360.7 | – | 360.7 | – | 360.7 | – | 360.9 | – |
 |
– | 143.8 | – | 143.9 | – | 143.8 | – | 143.8 | – |
 |
– | – | – | 0.00 | – | – | – | 0.58 | – |
 |
– | – | – | – | – | 0.00 | – | 2.12 | – |
| ∑ χ2 | – | 504.5 | – | 504.6 | – | 504.5 | – | 507.4 | – |
 |
– | 1.06 | – | 1.06 | – | 1.06 | – | 1.06 | – |
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.