Table 3.
Physically motivated spectrum parameters.
| Tbabs*(comptb+comptb) | Tbabs*(comptt+comptt) | Tbabs*(comptb*gabs) | Tbabs*(comptb+gauss) | |||||
|---|---|---|---|---|---|---|---|---|
| kTs | 2.0 ± 0.2 keV | kT01 | 0.57 ± 0.02 keV | kTs | 1.86 ± 0.01 | kTs | 1.77 ± 0.05 keV | |
| Γ1 | 1.4 ± 0.8 | kTe1 | 2.25 ± 0.03 keV | Γ | 1.58 ± 0.06 | Γ | 1.54 ± 0.04 | |
| α1 | 1.8 ± 0.1 | τ1 | 8.3 ± 0.1 | α | 1.10 ± 0.04 | α | 1.55 ± 0.02 | |
| kTe1 | 57 ± 92 keV | kT02 | 14.7 ± 0.1 keV | kTe | 10.8 ± 1.0 keV | kTe | 28 ± 6 keV | |
| Γ2 | 1.2 ± 24.4 | kTe2 | 3.06 ± 0.03 keV | Ecyc | 23 ± 1 keV | Egauss | 51.4 ± 0.8 keV | |
| α2 | 0.39 ± 0.05 | τ2 | 20.0 ± 0.5 | σcyc | 27 ± 2 keV | σgauss | 21.4 ± 0.9 keV | |
| kTe2 | 4.2 ± 0.5 keV | τcyc | 2.4 ± 0.7 | |||||
| δ | 13 ± 2 | |||||||
| red. χ2/ν | 0.98/1644 | 1.06/1646 | 0.99/1646 | 0.99/1646 | ||||
Notes. comptb model: kTs is the seed photon temperature, Γ is the seed photon spectral index, α is the Comptonization spectrum energy index, kTe is the electron temperature, and δ is the efficiency of the bulk Comptonization to the thermal Comptonization.
compTT model: kT0 is the seed photon temperature, kTe is the electron temperature, and τ is the optical depth. Egauss and σgauss are the energy and width of the cyclotron emission line, respectively.
gabs model: Ecyc, σcyc, and τcyc are the energy, width, and optical depth of the CRSF line, respectively.
gauss model: Egauss and σgauss are the energy and width of the cyclotron emission line, respectively.
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