Table 3
Model photon distributions used in the spectral analysis.
| Model name as in XSPEC | |
|
|
|
| PHABS | A(E) = e−NHσMM(E) |
| CUTOFFPL | P(E) = K E−Γe−E/Ecut |
| POWERLAW × HIGHECUT† | P(E) = K E−Γe(Ecut − E)/Efold |
| GAUSS |
|
| CYCLABS†† |
|
| GABS††† |
|
Notes. The spectra were fitted with the function f(E) = A(E) × (P(E) + G(E)) × (Cf(E) + Ch(E)). σMM(E): 0.03–10 keV interstellar photoelectric absorption cross-section. NH: equivalent hydrogen column; K: normalization in photons keV-1 cm-2 s-1 at 1 keV; Γ: power-law photon index; Ecut: cut-off energy in keV; Efold: folding energy in keV; El: iron line energy in keV; σ: iron line width in keV; Ei: energy of the cyclotron line in keV; Di: depth of the cyclotron line; Wi: width of the cyclotron line in keV; E0: central energy of the absorption line in keV; τ0: optical depth of the absorption lin; σ0: width of the absorption line in keV; †: only used in 4U 0115+63; ††: i refers to the fundamental (f) or harmonic (h); †††: used in 4U 0115+63, XTE J0658–073 and 1A 0535+262 to fit the “10-keV feature”.
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