Table 2.
Best-fit parameters of the fitted models.
| tbabs*Model | NH | NH, pcf | pcf | Γ/kT/M | N1 | Ng1 | Ng2 | χ2/d.o.f. |
|---|---|---|---|---|---|---|---|---|
| ×1022 | ×1022 | ×10−6 | ×10−6 | |||||
| 4XMM J174917.7–283329 | ||||||||
| po |
 |
0.9 ± 0.2 |
 |
152/108 | ||||
| po+g1+g2 |
 |
1.0 ± 0.2 |
 |
2 ± 1 | 4 ± 2 | 130/106 | ||
| tbpcf*(po+g1+g2) | 4 ± 1 |
 |
 |
2.3 ± 0.6 |
 |
 |
4 ± 3 | 109/104 |
| tbpcf*(apec+g1) | 2.9 ± 0.7 |
 |
0.6 ± 0.1 |
 |
1.2 ± 0.2 × 10−3 | 2 ± 1 | 117/105 | |
| tbpcf(mcvspec+g1) |
 |
 |
0.6 ± 0.1 |
 |
 |
2 ± 1 | 113/105 | |
| 4XMM J174954.6–294336 | ||||||||
| po |
 |
0.4 ± 0.2 |
 |
209/149 | ||||
| po+g1+g2 |
 |
0.6 ± 0.2 | 4 ± 1 × 10−5 | 3 ± 1 | 3 ± 2 | 180/147 | ||
| tbpcf*(po+g1+g2) |
 |
 |
0.6 ± 0.3 |
 |
 |
4 ± 2 | 3 ± 2 | 173/145 |
| tbpcf*(apec+g1) |
 |
 |
0.7 ± 0.1 | 35 ± 16 |
 |
4 ± 2 | 182/146 | |
| tbpcf(mcvspec+g1) |
 |
 |
0.7 ± 0.1 |
 |
 |
4 ± 2 | 177/146 | |
Notes. NH is given in units of 1022 cm−2, kT in keV, and M in M⊙. For the apec and mcvspec models, the metal abundance value is fixed at 1.0. In the mcvspec model, we fixed B and ṁ to 10 MG and 5 gm cm−2 s−1, typical values for low magnetized WDs. Due to a lack of good-quality data, we had to fix the centroid of the Gaussian lines; otherwise, it takes random values while fitting.
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