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Table 2.
Polarization degree and angle for each source with the corresponding branch of the Z-track.
| Source | Branch | PD [%] | PA [deg] |
|---|---|---|---|
| Cyg X-2 | NB | 1.6 ± 0.3 | −44 ± 4 |
| Cyg X-2 | FB | 4.2 ± 1.1 | −55 ± 7 |
| XTE J1701–462 | HB | 4.4 ± 0.4 | −37 ± 2 |
| XTE J1701–462 | NB | < 2.1 | Unconstrained |
| XTE J1701–462 | FB | < 2.8 | Unconstrained |
| GX 5–1 | HB | 4.3 ± 0.3 | −9 ± 2 |
| GX 5–1 | NB | 1.9 ± 0.3 | −11 ± 5 |
| GX 5–1 | FB | 2.9 ± 0.8 | −6 ± 8 |
| Sco X-1⋆ | NB | 0.8 ± 0.2 | 1 ± 8 |
| Sco X-1⋆ | FB | 1.3 ± 0.2 | 17 ± 5 |
| GX 340+0 | HB | 4.2 ± 0.4 | 37 ± 3 |
| GX 340+0 | NB | 1.5 ± 0.3 | 36 ± 5 |
| GX 340+0 | FB | < 5.1 | Unconstrained |
| GX 349+2 | NB | 1.0 ± 0.3 | 38 ± 8 |
| GX 349+2 | FB | 2.1 ± 0.6 | 7 ± 8 |
Notes. ( ⋆ )Polarization is computed in the 3–8 keV range (see Sect. 5.4). Errors are quoted at the 1σ confidence level, while upper limits are reported at the 99% confidence level for one interesting parameter.
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