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Table 3.
Best-fitting model parameters of the fits to the NuSTAR and NuSTAR+IXPE data.
| Parameter | NuSTAR | NuSTAR+IXPE |
|---|---|---|
| diskbb | ||
| kTin (keV) | 1.00 ± 0.04 | 1.020 ± 0.005 |
| Nd | 190 ± 25 | 168 ± 5 |
| comptb | ||
| kTs (keV) | 1.59 ± 0.07 | 1.575 ± 0.005 |
| α | 2.5 ± 0.3 | [2.5] |
| kTe (keV) | 3.4 ± 0.3 | [3.4] |
| Nc (10−2) | 3.7 ± 0.1 | 3.77 ± 0.03 |
| relxillns | ||
| qem | [3] | [3] |
| a | [0.2] | [0.2] |
| incl (deg) | 28 ± 8 | [28] |
| Rin (units of RISCO) | 5 ± 3 | [5] |
| kTbb (keV) | =1.59 | =1.575 |
| log(ξ/erg cm s−1) | 3.3 ± 0.3 | [3.3] |
| AFe | [1] | [1] |
| log ne | [18] | [18] |
| Nr (10−4) | 4 ± 1 | 3.3 ± 0.3 |
| Cross-calibration | ||
| numliv1 | 0.94 ± 0.01 | [0.94] |
| CFPMB − FPMA | 1.006 ± 0.001 | [1.006] |
| CDU1 − FPMA | 0.907 ± 0.005 | |
| CDU2 − FPMA | 0.877 ± 0.005 | |
| CDU3 − FPMA | 0.827 ± 0.004 | |
| Gain shift | ||
| αDU1 |
 |
|
| βDU1 (eV) |
 |
|
| αDU2 | 0.987 ± 0.002 | |
| βDU2 (eV) | −16 ± 8 | |
| αDU1 |
 |
|
| βDU1 (eV) |
 |
|
| χ2/d.o.f. | 229/224 | 865/841 |
| Photon flux ratios(a) | ||
| 2–8 keV | ||
| Fdiskbb/Ftot | 0.51 | |
| Fcomptb/Ftot | 0.43 | |
| Frelxillns/Ftot | 0.06 | |
| 2–4 keV | ||
| Fdiskbb/Ftot | 0.66 | |
| Fcomptb/Ftot | 0.30 | |
| Frelxillns/Ftot | 0.04 | |
| 4–8 keV | ||
| Fdiskbb/Ftot | 0.26 | |
| Fcomptb/Ftot | 0.66 | |
| Frelxillns/Ftot | 0.08 | |
| Energy flux (2–8 keV) | ||
| Ftot (erg cm−2 s−1) | 4.1 × 10−9 | |
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