Table 2
Orbital and physical parameters derived for the best-fit Keplerian model of CHXR 74.
| Parameter | Value |
|
|
|
| P (days) | 4770 ± 386 |
| T (HJD-2 450 000) | 1608 ± 204 |
| e | 0.0 (fixed) |
| ω (°) | 0.0 (fixed) |
| K (km s-1) | 2.17 ± 0.14 |
| V0 (km s-1) | 17.528 ± 0.17 |
|
|
|
| f(m) (10-3 M⊙) | 5.026 ± 1.061 |
| M2sini (MJup) | 84 ± 6 |
| M2sini (M⊙) | 0.08 ± 0.006 |
| a1sini (AU) | 0.95 ± 0.08 |
| a2 (AU) | 2.84 ± 0.20 |
|
|
|
| Nmeas | 22 |
| Span (days) | 4130 |
| σ (O-C)(m/s) | 395 |
|
0.94 |
Notes. The given parameters are: orbital period, periastron time, eccentricity, longitude of periastron, RV semi-amplitude, system velocity, mass function, lower limit of the companion mass, lower limit of the semi-major axis of the primary, semi-major axis of the companion, number of measurements, time span of the observations, residuals, reduced χ2. A model-dependent primary mass M1 = 0.24 M⊙ was used to derive M2sini and a2; the given errors of M2sini and a2 are solely based on the fit. See text for more details.
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