Table 2.
Best-fit orbital parameters as presented by F18 (left columns) and in this work (right columns), using either a χ2 minimization method or the MCMC estimator.
| Fürst et al. (2018) |
This work |
|||
|---|---|---|---|---|
| Parameter | χ2 min. | MCMC | χ2 min. | MCMC |
| Pspin [ms] |
 |
 |
417.077 ± 0.021 |
 |
| Ṗ [10−11 s s−1] | −4.03 ± 0.06 |
 |
 |
 |
| a sin i [lt-s] | 262 ± 20 |
 |
260 ± 40 |
 |
| Porb [d] |
 |
 |
64.86 ± 0.19 |
 |
| τ [MJD] |
 |
 |
56750 ± 70 |
 |
| e | ≤0.12 | ≤0.14 | ≤0.24 | ≤0.7 |
| ω [deg] |
 |
 |
 |
 |
| χ2/d.o.f. | 9.90/2 | 7.41/7 | ||
Notes. These results are based on the assumption of a constant spin-up, independent of the observed X-ray flux. The first column uses the same data and model as presented by F18 but using a corrected fit algorithm, resulting in significantly larger uncertainties. All uncertainties are reported at the 90% level.
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