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Table 1
Orbital and spin parameters for XTE J1751-305.
| Parameter | Value | |
|
|
||
| RA (J2000) | 17h51m13s.49(5) | a |
| Dec (J2000) | −30°37′23′′.4(6) | a |
| Projected semi-major axis axsini (lt-ms) | 10.125(5) | b |
| Ascending node passage, T⋆ (MJD) at | ||
| 2002 outburst | 52 368.0129023(4) | b |
| 2009 outburst | 55 111.000647(12) | |
| Orbital period, Porb (s) | 2545.342(2) | b |
| Eccentricity, e | <1.3 × 10-3 | b |
| Reference epoch, T0 (MJD) | 55 112.0 | |
| Mean spin frequency, ν0 (Hz) | 435.31799256(23) | |
| Secular spin frequency derivative, | ||
 (Hz s-1) |
−0.55(12) × 10-14 | |
Notes. Errors are at 1σ confidence level, upper limits are given at 95% confidence level. Errors in the source position are given at 90% confidence level. Times are referred to the barycentre of the Solar System (TDB).
References.
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