Table 1.
Spectro-polarimetric results for Obs. 1 and 2 for a disk+BL model.
| Parameters | Obs. 1 | Obs. 2 |
|---|---|---|
| const*tbabs*(diskbb+bbodyrad) | ||
| tbabs | ||
| – NH (1022 cm−2) | 2.7 ± 0.3 |
 |
| diskbb | ||
| – Tin (keV) |
 |
0.57 ± 0.04 |
| – Rin cos i (km) (a) |
 |
 |
| bbodyrad | ||
| – T (keV) |
 |
1.13 ± 0.01 |
| – Rbb (km) | 18 ± 3 |
 |
| const | ||
| – DU1 | [1] | [1] |
| – DU2 | 0.981 ± 0.003 | 0.967 ± 0.003 |
| – DU3 | 0.917 ± 0.003 | 0.950 ± 0.004 |
| Reduced χ2 (d.o.f.) | 1.044 (440) | 1.080 (422) |
| Flux (10−9 erg cm−2 s−1) |
 |
 |
| Photon flux (cm−2 s−1) |  |
 |
| disk photons (b) | 0.247 | 0.226 |
| polconst*(diskbb+bbodyrad)(c) | ||
| — PD (%) | 4.58 ± 0.37 | 0.65 ± 0.35 |
| — PA (deg) | −37.7 ± 2.3 | −57 ± 16 |
| (polconst*diskbb + polconst*bbodyrad)(d) | ||
| diskbb | ||
| – PD (%) | < 1.6 | < 3.2 |
| – PA (deg) | [PABL+90] | [PABL+90] |
| bbodyrad (for BL) | ||
| – PD (%) |
 |
1.22 ± 0.65 |
| – PA (deg) | −38.3 ± 2.3 | −54 ± 14 |
| bbodyrad(e) | ||
| – PD (%) |
 |
0.90 ± 0.45 |
| – PA (deg) | −38.3 ± 2.3 | −56 ± 15 |
Notes. DU energy range is 2–8 keV. The spectral and polarimetric fits errors and upper limits are joint computed at 2σ (95% confidence). A systematics of 1% is applied in XSPEC in order to account for slight instrumental miscalibration. Normalizations of DU2 and DU3 are relative to DU1. Frozen or linked parameters are in square brackets.
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