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Table 3.
Best fits to the 2.5–10 keV EPIC pn spectra of GX13+1.
| Component | Parameter | Unit | Obs.1 (a) | Obs.2 (b) | Obs.1 (a) | Obs.2 (b) | Obs.2 (b),(c) |
|---|---|---|---|---|---|---|---|
| Tbabs | nH | 1022 atoms cm−2 |  |
2.9 |
 |
 |
 |
| bbodyrad | kTbb | keV |  |
1.29 |
 |
 |
 |
| CompTT | kT0 | keV |  |
0.51 |
 |
 |
 |
| kTe | keV |  |
 |
 |
 |
 |
|
| τ |  |
 |
 |
 |
 |
||
| Windline | τw |  |
 |
||||
| kTew | keV | [0.7] |  |
||||
| β | [7.5 × 10−2] |  |
|||||
| Diskline | EL | keV |  |
 |
6.4 (d) | ||
| β10(e) |  |
 |
 |
||||
| Rin | RG |  |
 |
 |
|||
| Rout | RG | [1000] |  |
 |
|||
| iout | deg |  |
75 (d) |  |
|||
| EW | eV |  |
 |
 |
 |
 |
|
| Gaus1 | EL | keV |  |
 |
|||
| σ | keV | 3.9 × 10−3(d) | 2.8 × 10−3(d) | ||||
| Gaus2 | EL | keV |  |
 |
 |
 |
 |
| σ | keV | 1.1 × 10−4(d) | 1.4×10−3(d) | 1.1×10−4(d) | 6.7 × 10−4(d) | 1.1 × 10−4(d) | |
| Gaus3 | EL | keV |  |
 |
|||
| σ | keV | 2.7 × 10−3(d) | 1.6 × 10−4(d) | ||||
| Fit quality | χ2/d.o.f. | 1784.81/1481 | 1572.35/1485 | 1690.81/1478 | 1573.37/1483 | 1588.06/1483 | |
 |
1.21 | 1.06 | 1.14 | 1.06 | 1.07 | ||
Notes. Spectral uncertainties are given at the 90% (Δχ2 = 2.71) confidence level for one derived parameter. The frozen parameters are shown in parentheses.
(e)
Radial dependence of the line emissivity (power-law dependence, see Fabian et al. 1989).
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