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Table 4.
IXPE spectropolarimetric fit of the Stokes parameters I, Q, and U using the spectral model from Table 3.
| Model | PD/A1 (%) | Aslope (% keV−1) | PA/ψ1 (deg) | ψslope (deg keV−1) | χ2/d.o.f. |
|---|---|---|---|---|---|
| tbabs*(diskbb+bbodyrad)*polconst | 2.4 ± 0.3 | – | 28 ± 3 | – | 243/250 = 0.97 |
| tbabs*(diskbb+bbodyrad)*pollin | 3.8 ± 0.8 | −0.5 ± 0.3 | 28 ± 3 | −8 ± 4 | 234/248 = 0.94 |
| tbabs*(diskbb*polconst | 6.5 ± 1.6 | – | 41 ± 7 | – | 235/248 = 0.95 |
| +bbodyrad*polconst) | 1.6 ± 0.7 | – | 3 ± 13 | – | |
Notes. Errors correspond to 68% CL.
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