Table 1.
Best fit parameters determined for the hard and soft spectral state of SAX J1748.9–2021.
| Hard state |
Soft state |
|||
|---|---|---|---|---|
| CUTOFFPL | COMPPS | CUTOFFPL | COMPPS | |
| NH (1022 cm−2) | 0.57 ± 0.03 | 0.52 ± 0.08 | 0.90 ± 0.06 | 0.8 ± 0.1 |
| Γ | 1.37 ± 0.03 | – | 1.1 ± 0.1 | – |
| Ecut | 40 ± 2 | – | 6.7 ± 1.4 | – |
| kTe (keV) | – | 18.1 ± 0.8 | – | 5.0 ± 0.5 |
| kTseed (keV) | – | 0.39 ± 0.06 | – | 0.28 ± 0.15 |
| τT | – | 3.8 ± 0.5 | ||
| Aseed | – |
 |
– |
 |
| Fbol (10−9 cm−2 s−1)a | 3.1 ± 0.2 | 3.1 ± 0.2 | 6.1 ± 0.2 | 6.1 ± 0.2 |
 |
1.05/516 | 1.06/515 | 0.98/579 | 0.98/578 |
Notes. Unabsorbed flux in the 0.1–250 keV and 0.1–50 keV energy range for the hard and soft states, respectively. For the CUTOFFPL model, the parameters are the photon index, Γ, the cutoff energy, Ecut. For the COMPPSmodel, the main parameters are the Thomson optical depth, τT, across the slab, the electron temperature, kTe, the temperature, kTseed, of the soft-seed thermal photons and the apparent area of the seed photons, Aseed.
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