Table 3.
Spectro-polarimetric parameters in different pulse-phase bins obtained with XSPEC.
| Phase | NH | Photon index | PD | PA | χ2/d.o.f. |
|---|---|---|---|---|---|
| (1022 cm−2) | (%) | (deg) | |||
| 0.000–0.058 | 24.4 ± 1.2 | 0.15 ± 0.14 | 9.9 ± 3.2 | 89 ± 9 | 991/1017 |
| 0.058–0.193 | 23.4 ± 0.7 | −0.08 ± 0.08 |
 ( < 6.8) |
80 ± 30 | 1262/1245 |
| 0.193–0.328 | 25.1 ± 0.7 | 0.11 ± 0.08 |
 ( < 6.8) |
66 ± 34 | 1343/1236 |
| 0.328–0.463 | 24.3 ± 0.7 | 0.12 ± 0.09 | 4.9 ± 2.1 | 15 ± 13 | 1254/1212 |
| 0.463–0.603 | 26.3 ± 0.6 | 0.45 ± 0.07 |
 ( < 4.6) |
82 ± 90 | 1321/1269 |
| 0.603–0.733 | 25.6 ± 0.6 | 0.30 ± 0.06 | 4.3 ± 1.6 | −14 ± 11 | 1398/1278 |
| 0.733–0.813 | 24.8 ± 0.7 | 0.24 ± 0.08 | 7.7 ± 2.0 | −46 ± 7 | 1271/1206 |
| 0.813–0.893 | 26.5 ± 0.7 | 0.59 ± 0.08 | 2.8 ± 1.9 | −13 ± 22 | 1273/1212 |
| 0.893–1.000 | 26.8 ± 0.7 | 0.59 ± 0.08 |
 ( < 6.5) |
72 ± 40 | 1241/1227 |
Notes. The uncertainties computed using the error command are given at the 68.3% (1σ) confidence level (Δχ2 = 1 for one parameter of interest). The upper limits of the PD (in parentheses) correspond to the 99% confidence level (Δχ2 = 6.635) and are quoted when the PD is consistent with zero within 1σ.
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